Dantrium ® Intravenous (dantrolene sodium for injection)

Manufacturer
Par Health USA, LLC
Effective date
2026-03-10
Label type
HUMAN PRESCRIPTION DRUG LABEL
Version
15
Source
full-release
Hydrated at
2026-05-31 22:16:52

Label at a glance#

ProductDantrium
Active ingredientDANTROLENE SODIUM
Label structure12 sections

Indications and uses

Dantrium Intravenous is indicated, along with appropriate supportive measures, for the management of the fulminant hypermetabolism of skeletal muscle characteristic of malignant hyperthermia crises in patients of all ages. Dantrium Intravenous should be administered by continuous rapid intravenous push as soon as the malignant hyperthermia reaction is recognized (i.e., tachycardia, tachypnea, central venous desatu...

Dosage and administration

As soon as the malignant hyperthermia reaction is recognized, all anesthetic agents should be discontinued; the administration of 100% oxygen is recommended. Dantrium Intravenous should be administered by continuous rapid intravenous push beginning at a minimum dose of 1 mg/kg, and continuing until symptoms subside or the maximum cumulative dose of 10 mg/kg has been reached. If the physiologic and metabolic abnorm...

Label contents#

Full prescribing information#

DESCRIPTION:

DESCRIPTION SECTION

Dantrium Intravenous is a sterile, non-pyrogenic, lyophilized formulation of dantrolene sodium for injection. Dantrium Intravenous is supplied in 70 mL vials containing 20 mg dantrolene sodium, 3000 mg mannitol, and sufficient sodium hydroxide to yield a pH of approximately 9.5 when reconstituted with 60 mL sterile water for injection USP (without a bacteriostatic agent).

Dantrium is classified as a direct-acting skeletal muscle relaxant. Chemically, Dantrium is hydrated 1-[[[5-(4-nitrophenyl)-2-furanyl]methylene]amino]-2,4-imidazolidinedione sodium salt. The structural formula for the hydrated salt is:

Chemical structure
Chemical structure

The hydrated salt contains approximately 15% water (3-1/2 moles) and has a molecular weight of 399. The anhydrous salt (dantrolene) has a molecular weight of 336.

CLINICAL PHARMACOLOGY:

CLINICAL PHARMACOLOGY SECTION

In isolated nerve-muscle preparation, Dantrium has been shown to produce relaxation by affecting the contractile response of the muscle at a site beyond the myoneural junction. In skeletal muscle, Dantrium dissociates the excitation-contraction coupling, probably by interfering with the release of Ca++ from the sarcoplasmic reticulum. The administration of intravenous Dantrium to human volunteers is associated with loss of grip strength and weakness in the legs, as well as subjective CNS complaints (see also PRECAUTIONS, Information for Patients). Information concerning the passage of Dantrium across the blood-brain barrier is not available.

In the anesthetic-induced malignant hyperthermia syndrome, evidence points to an intrinsic abnormality of skeletal muscle tissue. In affected humans, it has been postulated that "triggering agents" (e.g., general anesthetics and depolarizing neuromuscular blocking agents) produce a change within the cell which results in an elevated myoplasmic calcium. This elevated myoplasmic calcium activates acute cellular catabolic processes that cascade to the malignant hyperthermia crisis.

It is hypothesized that addition of Dantrium to the "triggered" malignant hyperthermic muscle cell reestablishes a normal level of ionized calcium in the myoplasm. Inhibition of calcium release from the sarcoplasmic reticulum by Dantrium reestablishes the myoplasmic calcium equilibrium, increasing the percentage of bound calcium. In this way, physiologic, metabolic, and biochemical changes associated with the malignant hyperthermia crisis may be reversed or attenuated. Experimental results in malignant hyperthermia susceptible swine show that prophylactic administration of intravenous or oral dantrolene prevents or attenuates the development of vital sign and blood gas changes characteristic of malignant hyperthermia in a dose related manner. The efficacy of intravenous dantrolene in the treatment of human and porcine malignant hyperthermia crisis, when considered along with prophylactic experiments in malignant hyperthermia susceptible swine, lends support to prophylactic use of oral or intravenous dantrolene in malignant hyperthermia susceptible humans. When prophylactic intravenous dantrolene is administered as directed, whole blood concentrations remain at a near steady state level for 3 or more hours after the infusion is completed. Clinical experience has shown that early vital sign and/or blood gas changes characteristic of malignant hyperthermia may appear during or after anesthesia and surgery despite the prophylactic use of dantrolene and adherence to currently accepted patient management practices. These signs are compatible with attenuated malignant hyperthermia and respond to the administration of additional intravenous dantrolene (see DOSAGE AND ADMINISTRATION). The administration of the recommended prophylactic dose of intravenous dantrolene to healthy volunteers was not associated with clinically significant cardiorespiratory changes.

Specific metabolic pathways for the degradation and elimination of Dantrium in humans have been established. Dantrolene is found in measurable amounts in blood and urine. Its major metabolites in body fluids are 5-hydroxy dantrolene and an acetylamino metabolite of dantrolene. Another metabolite with an unknown structure appears related to the latter. Dantrium may also undergo hydrolysis and subsequent oxidation forming nitrophenylfuroic acid.

The mean biologic half-life of Dantrium after intravenous administration is variable, between 4 to 8 hours under most experimental conditions. Based on assays of whole blood and plasma, slightly greater amounts of dantrolene are associated with red blood cells than with the plasma fraction of blood. Significant amounts of dantrolene are bound to plasma proteins, mostly albumin, and this binding is readily reversible.

Cardiopulmonary depression has not been observed in malignant hyperthermia susceptible swine following the administration of up to 7.5 mg/kg intravenous dantrolene. This is twice the amount needed to maximally diminish twitch response to single supramaximal peripheral nerve stimulation (95% inhibition). A transient, inconsistent, depressant effect on gastrointestinal smooth muscles has been observed at high doses.

INDICATIONS AND USAGE:

INDICATIONS & USAGE SECTION

Dantrium Intravenous is indicated, along with appropriate supportive measures, for the management of the fulminant hypermetabolism of skeletal muscle characteristic of malignant hyperthermia crises in patients of all ages. Dantrium Intravenous should be administered by continuous rapid intravenous push as soon as the malignant hyperthermia reaction is recognized (i.e., tachycardia, tachypnea, central venous desaturation, hypercarbia, metabolic acidosis, skeletal muscle rigidity, increased utilization of anesthesia circuit carbon dioxide absorber, cyanosis and mottling of the skin, and, in many cases, fever).

Dantrium Intravenous is also indicated preoperatively, and sometimes postoperatively, to prevent or attenuate the development of clinical and laboratory signs of malignant hyperthermia in individuals judged to be malignant hyperthermia susceptible.

CONTRAINDICATIONS:

CONTRAINDICATIONS SECTION

None.

WARNINGS:

WARNINGS SECTION

The use of Dantrium Intravenous in the management of malignant hyperthermia crisis is not a substitute for previously known supportive measures. These measures must be individualized, but it will usually be necessary to discontinue the suspect triggering agents, attend to increased oxygen requirements, manage the metabolic acidosis, institute cooling when necessary, monitor urinary output, and monitor for electrolyte imbalance.

Since the effect of disease state and other drugs on Dantrium-related skeletal muscle weakness, including possible respiratory depression, cannot be predicted, patients who receive Dantrium Intravenous preoperatively should have vital signs monitored.

If patients judged malignant hyperthermia susceptible are administered intravenous or oral Dantrium preoperatively, anesthetic preparation must still follow a standard malignant hyperthermia susceptible regimen, including the avoidance of known triggering agents. Monitoring for early clinical and metabolic signs of malignant hyperthermia is indicated because attenuation of malignant hyperthermia, rather than prevention, is possible. These signs usually call for the administration of additional intravenous dantrolene.

PRECAUTIONS:

PRECAUTIONS SECTION

General:

GENERAL PRECAUTIONS SECTION

Care must be taken to prevent extravasation of Dantrium Intravenous solution into the surrounding tissues due to the high pH of the intravenous formulation and potential for tissue necrosis.

When mannitol is used for prevention or treatment of late renal complications of malignant hyperthermia, the 3 g of mannitol needed to dissolve each 20 mg vial of Dantrium Intravenous should be taken into consideration.

Information for Patients:

INFORMATION FOR PATIENTS SECTION

Based upon data in human volunteers, perioperatively, it is appropriate to tell patients who receive Dantrium Intravenous that symptoms of muscle weakness should be expected postoperatively (i.e., decrease in grip strength and weakness of leg muscles, especially walking down stairs). In addition, symptoms such as "lightheadedness" may be noted. Since some of these symptoms may persist for up to 48 hours, patients must not operate an automobile or engage in other hazardous activity during this time. Caution is also indicated at meals on the day of administration because difficulty swallowing and choking has been reported. Caution should be exercised in the concomitant administration of tranquilizing agents.

Drug Interactions:

DRUG INTERACTIONS SECTION

Dantrium is metabolized by the liver, and it is theoretically possible that its metabolism may be enhanced by drugs known to induce hepatic microsomal enzymes. However, neither phenobarbital nor diazepam appears to affect Dantrium metabolism. Binding to plasma protein is not significantly altered by diazepam, diphenylhydantoin, or phenylbutazone. Binding to plasma proteins is reduced by warfarin and clofibrate and increased by tolbutamide.

Cardiovascular collapse in association with marked hyperkalemia has been reported in patients receiving dantrolene in combination with calcium channel blockers. It is recommended that the combination of intravenous dantrolene sodium and calcium channel blockers, such as verapamil, not be used together during the management of malignant hyperthermia crisis.

Administration of dantrolene may potentiate vecuronium-induced neuromuscular block.

Carcinogenesis, Mutagenesis, and Impairment of Fertility:

CARCINOGENESIS & MUTAGENESIS & IMPAIRMENT OF FERTILITY SECTION

Sprague-Dawley female rats fed Dantrium for 18 months at dosage levels of 15, 30, and 60 mg/kg/day showed an increased incidence of benign and malignant mammary tumors compared with concurrent controls. At the highest dose level (approximately the same as the maximum recommended daily dose on a mg/m2 basis), there was an increase in the incidence of benign hepatic lymphatic neoplasms. In a 30-month study in Sprague-Dawley rats fed dantrolene sodium, the highest dose level (approximately the same as the maximum recommended daily dose on a mg/m2 basis) produced a decrease in the time of onset of mammary neoplasms. Female rats at the highest dose level showed an increased incidence of hepatic lymphangiomas and hepatic angiosarcomas.

The only drug-related effect seen in a 30-month study in Fischer-344 rats was a dose-related reduction in the time of onset of mammary and testicular tumors. A 24-month study in HaM/ICR mice revealed no evidence of carcinogenic activity.

The significance of carcinogenicity data relative to use of Dantrium in humans is unknown.

Dantrolene sodium has produced positive results in the Ames S. Typhimurium bacterial mutagenesis assay in the presence and absence of a liver activating system.

Dantrolene sodium administered to male and female rats at dose levels up to 45 mg/kg/day (approximately 1.4 times the maximum recommended daily dose on a mg/m2 basis) showed no adverse effects on fertility or general reproductive performance.

Pregnancy:

PREGNANCY SECTION

Pregnancy Category C:

TERATOGENIC EFFECTS SECTION

Dantrium has been shown to be embryocidal in the rabbit and has been shown to decrease pup survival in the rat when given at doses seven times the human oral dose. There are no adequate and well-controlled studies in pregnant women. Dantrium Intravenous should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.

Labor and Delivery:

LABOR & DELIVERY SECTION

In one uncontrolled study, 100 mg per day of prophylactic oral Dantrium was administered to term pregnant patients awaiting labor and delivery. Dantrolene readily crossed the placenta, with maternal and fetal whole blood levels approximately equal at delivery; neonatal levels then fell approximately 50% per day for 2 days before declining sharply. No neonatal respiratory and neuromuscular side effects were detected at low dose. More data, at higher doses, are needed before more definitive conclusions can be made.

Nursing Mothers:

NURSING MOTHERS SECTION

Dantrolene has been detected in human milk at low concentrations (less than 2 micrograms per mL) during repeat intravenous administration over 3 days. Because of the potential for serious adverse reactions in nursing infants from dantrolene, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.

Geriatric Use:

GERIATRIC USE SECTION

Clinical studies of Dantrium Intravenous did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.

ADVERSE REACTIONS:

ADVERSE REACTIONS SECTION

There have been occasional reports of death following malignant hyperthermia crisis even when treated with intravenous dantrolene; incidence figures are not available (the pre-dantrolene mortality of malignant hyperthermia crisis was approximately 50%). Most of these deaths can be accounted for by late recognition, delayed treatment, inadequate dosage, lack of supportive therapy, intercurrent disease and/or the development of delayed complications such as renal failure or disseminated intravascular coagulopathy. In some cases there are insufficient data to completely rule out therapeutic failure of dantrolene.

There are reports of fatality in malignant hyperthermia crisis, despite initial satisfactory response to intravenous dantrolene, which involve patients who could not be weaned from dantrolene after initial treatment.

The administration of Dantrium Intravenous to human volunteers is associated with loss of grip strength and weakness in the legs, as well as drowsiness and dizziness.

The following adverse reactions are in approximate order of severity:

There are rare reports of pulmonary edema developing during the treatment of malignant hyperthermia crisis in which the diluent volume and mannitol needed to deliver intravenous dantrolene possibly contributed.

There have been reported cases of hepatotoxicity following the use of intravenous dantrolene products. Elevated liver enzymes have occurred hours to days following use of intravenous dantrolene, though many of these cases were observed in patients with comorbidities (e.g., critical illness).

There have been reports of thrombophlebitis following administration of intravenous dantrolene; actual incidence figures are not available. Tissue necrosis secondary to extravasation has been reported.

There have been rare reports of urticaria and erythema possibly associated with the administration of Dantrium Intravenous. There has been one case of anaphylaxis.

Injection site reactions (pain, erythema, swelling), commonly due to extravasation, have been reported.

The following events have been reported in patients receiving oral dantrolene: aplastic anemia, leukopenia, lymphocytic lymphoma, and heart failure. (See package insert for Dantrium (dantrolene sodium) Capsules for a complete listing of adverse reactions.)

The published literature has included some reports of Dantrium use in patients with Neuroleptic Malignant Syndrome (NMS). Dantrium Intravenous is not indicated for the treatment of NMS and patients may expire despite treatment with Dantrium Intravenous.

For medical advice about adverse reactions contact your medical professional. To report SUSPECTED ADVERSE REACTIONS, contact Par Health at 1-800-828-9393 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

OVERDOSAGE:

OVERDOSAGE SECTION

Because Dantrium Intravenous must be administered at a low concentration in a large volume of fluid, acute toxicity of Dantrium Intravenous could not be assessed in animals. In 14-day (subacute) studies, the intravenous formulation of Dantrium was relatively non-toxic to rats at doses of 10 mg/kg/day and 20 mg/kg/day. While 10 mg/kg/day in dogs for 14 days evoked little toxicity, 20 mg/kg/day for 14 days caused hepatic changes of questionable biologic significance.

Symptoms which may occur in case of overdose include, but are not limited to, muscular weakness and alterations in the state of consciousness (e.g., lethargy, coma), vomiting, diarrhea, and crystalluria.

For acute overdosage, general supportive measures should be employed.

Intravenous fluids should be administered in fairly large quantities to avert the possibility of crystalluria. An adequate airway should be maintained and artificial resuscitation equipment should be at hand. Electrocardiographic monitoring should be instituted, and the patient carefully observed. The value of dialysis in Dantrium overdose is not known.

DOSAGE AND ADMINISTRATION:

DOSAGE & ADMINISTRATION SECTION

As soon as the malignant hyperthermia reaction is recognized, all anesthetic agents should be discontinued; the administration of 100% oxygen is recommended. Dantrium Intravenous should be administered by continuous rapid intravenous push beginning at a minimum dose of 1 mg/kg, and continuing until symptoms subside or the maximum cumulative dose of 10 mg/kg has been reached.

If the physiologic and metabolic abnormalities reappear, the regimen may be repeated. It is important to note that administration of Dantrium Intravenous should be continuous until symptoms subside. The effective dose to reverse the crisis is directly dependent upon the individual's degree of susceptibility to malignant hyperthermia, the amount and time of exposure to the triggering agent, and the time elapsed between onset of the crisis and initiation of treatment.

Pediatric Dose:

PEDIATRIC USE SECTION

Experience to date indicates that the dose of Dantrium Intravenous for pediatric patients is the same as for adults.

Preoperatively:

SPL UNCLASSIFIED SECTION

Dantrium Intravenous and/or Dantrium Capsules may be administered preoperatively to patients judged malignant hyperthermia susceptible as part of the overall patient management to prevent or attenuate the development of clinical and laboratory signs of malignant hyperthermia.

SPL UNCLASSIFIED SECTION

Dantrium Intravenous: The recommended prophylactic dose of Dantrium Intravenous is 2.5 mg/kg, starting approximately 1-1/4 hours before anticipated anesthesia and infused over approximately 1 hour. This dose should prevent or attenuate the development of clinical and laboratory signs of malignant hyperthermia provided that the usual precautions, such as avoidance of established malignant hyperthermia triggering agents, are followed.

Additional Dantrium Intravenous may be indicated during anesthesia and surgery because of the appearance of early clinical and/or blood gas signs of malignant hyperthermia or because of prolonged surgery (see also CLINICAL PHARMACOLOGY, WARNINGS, and PRECAUTIONS). Additional doses must be individualized.

Oral Administration of Dantrium Capsules:

SPL UNCLASSIFIED SECTION

Administer 4 to 8 mg/kg/day of oral Dantrium Capsules in three or four divided doses for 1 or 2 days prior to surgery, with the last dose being given with a minimum of water approximately 3 to 4 hours before scheduled surgery. Adjustment can usually be made within the recommended dosage range to avoid incapacitation (weakness, drowsiness, etc.) or excessive gastrointestinal irritation (nausea and/or vomiting). See also the package insert for Dantrium Capsules.

Post Crisis Follow-Up:

SPL UNCLASSIFIED SECTION

Dantrium Capsules, 4 to 8 mg/kg/day, in four divided doses should be administered for 1 to 3 days following a malignant hyperthermia crisis to prevent recurrence of the manifestations of malignant hyperthermia.

Dantrium Intravenous may be used postoperatively to prevent or attenuate the recurrence of signs of malignant hyperthermia when oral administration of Dantrium Capsules is not practical. The dose of Dantrium Intravenous in the postoperative period must be individualized, starting with 1 mg/kg or more as the clinical situation dictates.

PREPARATION:

SPL UNCLASSIFIED SECTION

Each vial of Dantrium Intravenous should be reconstituted by adding 60 mL of sterile water for injection USP (without a bacteriostatic agent), and the vial shaken until the solution is clear. 5% Dextrose Injection USP, 0.9% Sodium Chloride Injection USP, and other acidic solutions are not compatible with Dantrium Intravenous and should not be used. The contents of the vial must be protected from direct light and used within 6 hours after reconstitution. Store reconstituted solutions between 15° to 30°C (59° to 86°F).

Reconstituted Dantrium Intravenous should not be transferred to large glass bottles for prophylactic infusion due to precipitate formation observed with the use of some glass bottles as reservoirs.

For prophylactic infusion, the required number of individual vials of Dantrium Intravenous should be reconstituted as outlined above. The contents of individual vials are then transferred to a larger volume sterile intravenous plastic bag. Stability data on file at Par Health indicate commercially available sterile plastic bags are acceptable drug delivery devices. However, it is recommended that the prepared infusion be inspected carefully for cloudiness and/or precipitation prior to dispensing and administration. Such solutions should not be used. While stable for 6 hours, it is recommended that the infusion be prepared immediately prior to the anticipated dosage administration time.

Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration.

HOW SUPPLIED:

HOW SUPPLIED SECTION

Dantrium Intravenous (NDC 42023-123-06) is available in vials containing a sterile lyophilized mixture of 20 mg dantrolene sodium, 3000 mg mannitol, and sufficient sodium hydroxide to yield a pH of approximately 9.5 when reconstituted with 60 mL sterile water for injection USP (without a bacteriostatic agent).

STORAGE AND HANDLING SECTION

Store unreconstituted product between 20° to 25°C (68° to 77°F). (See USP Controlled Room Temperature). Avoid prolonged exposure to light.

SPL UNCLASSIFIED SECTION

Rx only.

Manufactured for:

Par Health USA

Rochester, MI 48307

© 2025 Par Health, Inc. or one of its affiliates.

Revised: 12/2025

PRINCIPAL DISPLAY PANEL - 20 mg Vial Carton

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL

6 Vials Nonreturnable
NDC 42023-123-06

20 mg

Dantrium® Intravenous
(dantrolene sodium for injection)

For treatment of malignant hyperthermia
FOR INTRAVENOUS USE ONLY

Rx Only

This is a carton image of Dantrium Intravenous 20 mg vials.
This is a carton image of Dantrium Intravenous 20 mg vials.

DailyMed RxNorm Mappings#

RxCUI, RxNorm string, TTY table
RxCUIRxNorm stringTTYSPL version
856698Dantrium 0.333 MG/ML Injectable SolutionPSN15
856696dantrolene sodium 0.333 MG/ML Injectable SolutionPSN15
856698dantrolene sodium 0.333 MG/ML Injectable Solution [Dantrium]SBD15
856696dantrolene sodium 0.333 MG/ML Injectable SolutionSCD15
856698Dantrium 0.333 MG/ML (as dantrolene sodium) Injectable SolutionSY15

DailyMed Pharmacologic Classes#

Class, Version, Type table
ClassVersionTypeEffective
DANTROLENE Pharmacologic Class Indexing2Indexing - Pharmacologic Class20180813

DailyMed Product Concepts#

Product concept, Relation, Version table
Product conceptRelationVersionEffective
a62a50ac-1535-4461-9768-8ae703e2e9fbProduct name120210525
0e1aa0c0-7e5b-41f6-80ca-71938bc3ba10Product name220170803
d7dbb6a6-7ce7-4878-a62c-772d63bc4c9fProduct name220141210
9514609b-a2a9-f8ec-6ba6-3f8e5ee89877Product name120140508
aa6a0d9e-0b39-aacf-4e4e-ce5e489de585Product name120140508
bc07ef78-e82d-0c19-31f4-31f263780582Product name120140508

DailyMed Package Descriptions#

Package NDC, Product, Description table
Package NDCProductDescriptionFormQuantityStrengthSPL version
42023-123-06Dantrium60 mL in 1 VIALINJECTION6015
42023-123-06Dantrium6 in 1 CARTONINJECTION615

DailyMed Billing Units#

Package NDC, Billing unit, Product NDC table
Package NDCBilling unitProduct NDCDailyMed indexing SPLSPL versionEffective
42023-123-06EA - Each42023-1230613ff7c-1443-419d-9c3b-823ee26cb68b12012-07-24

DailyMed Socrata Ingredients#

Ingredient, Type, UNII table
IngredientTypeUNIISPL versionUploaded
dantrolene sodiumACTIVE INGREDIENT287M0347EV5
dantroleneACTIVE MOIETYF64QU97QCR5
mannitolINACTIVE INGREDIENT3OWL53L36A5
sodium hydroxideINACTIVE INGREDIENT55X04QC32I5

Products#

Every source-derived product name is available through these pages.

DailyMed product names page 1 of 1 · 5 matching rows.

NDC Codes#

Product NDC, Package NDC table
Product NDCPackage NDC
42023-12342023-123-06

Ingredients#

Every source-derived ingredient row is available through these pages.

DailyMed ingredient rows page 1 of 1 · 3 matching rows.

Source Document#

Source XML

Older Hydrated Versions#

Version, Effective date, Source table
VersionEffective dateSourceHydrated
132024-06-24monthly-update2026-06-03 17:49:05

Inactive ingredient matches#

Inactive Ingredient Database values describe FDA-listed use contexts. The match method and ambiguity count are shown because ingredient names, routes, and dosage forms are not always unique. Browse recovered IID releases and source provenance.

Inactive ingredient links page 1 of 1 · 4 matching rows.

DailyMed ingredient, IID ingredient, UNII table
DailyMed ingredientIID ingredientUNIIDosage form / routePotencyMaximum daily exposureMatch
sodium hydroxideSODIUM HYDROXIDE55X04QC32IINJECTION / INTRAVENOUS456 mgExact identifier — unii+route+dosage form
2 equally ranked IID candidates
sodium hydroxideSODIUM HYDROXIDE55X04QC32IINJECTION / INTRAVENOUS456 mgExact identifier — unii+route+dosage form
2 equally ranked IID candidates
mannitolMANNITOL3OWL53L36AINJECTION / INTRAVENOUS15200 mgExact identifier — unii+route+dosage form
2 equally ranked IID candidates
mannitolMANNITOL3OWL53L36AINJECTION / INTRAVENOUS15200 mgExact identifier — unii+route+dosage form
2 equally ranked IID candidates

Orange Book application contexts#

All distinct exact application/product contexts derived from this label’s complete NDC list are paginated below.

Orange Book application contexts page 1 of 1 · 1 matching rows.

Source provenance: Browse the complete Orange Book source catalog · source snapshot 44.

Orange Book products#

Current product rows page 1 of 1 · 1 matching rows.

Application-product, Trade name, Ingredient table
Application-productTrade nameIngredientStrengthDosage form / routeTE codesRLD / RSApproval date
N018264-001DANTRIUMDANTROLENE SODIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 1982

Therapeutic equivalence codes#

Current TE-code rows page 1 of 1 · 1 matching rows.

Application-product, TE code table
Application-productTE code
N018264-001AP

Observed Orange Book product history#

Observed FDA ZIP history: Each table is queried independently by exact application/product key from successfully parsed Orange Book snapshots. Capture times identify archived source observations; absence or a change between snapshots is not inferred. FDA publication files that were not recoverable as structured ZIP data are not represented as states.

Product history page 1 of 2 · 44 observed states.

Captured, Edition, Application-product table
CapturedEditionApplication-productTrade nameStrengthDosage form / routeProduct TE source textRLD / RSApproval dateSource SHA-256
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2026-09-14 22:38:342026-08N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 198284e616aacf4f…
2026-08-18 06:07:402026-07N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 1982caaa826d4ba7…
2026-02-19 14:30 UTC2026-02N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 1982011fe1cb6892…
2025-12-14 10:44 UTC · 2 captures of this ZIP2025-12N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 198231067a03dcf5…
2025-08-23 18:47 UTC2025-08N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 19826a471c1ec25d…
2025-03-22 03:13 UTC · 3 captures of this ZIP2025-03N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 1982fd3edfee7708…
2025-02-26 10:13 UTC · 3 captures of this ZIP2025-02N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 1982b8a1b40f171c…
2025-01-19 17:59 UTC · 7 captures of this ZIP2025-01N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 198203ed91905a0d…
2024-12-13 21:23 UTC · 2 captures of this ZIP2024-12N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 19822680178bc6a6…
2024-09-14 05:58 UTC · 2 captures of this ZIP2024-09N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 19825bbf6a4d5a75…
2024-11-08 22:44 UTC · 3 captures of this ZIP2024-11N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 1982d8e5a09893c0…
2024-10-29 15:01 UTC2024-10N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 1982d06236e962d9…
2024-08-13 05:28 UTC · 3 captures of this ZIP2024-08N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 198279d66fd596c7…
2024-07-13 05:37 UTC · 2 captures of this ZIP2024-07N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 1982301d65b070ca…
2024-06-18 03:08 UTC · 5 captures of this ZIP2024-06N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 19821e350fbaab3a…
2024-05-31 18:47 UTC2024-05N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 19828072bd15b7f6…
2022-06-29 02:47 UTC · 2 captures of this ZIP2022-06N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 19825c6f7cd8ea54…
2022-04-08 23:34 UTC2022-04N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 19825d02ea3f76ae…
2022-04-04 05:41 UTC2022-04N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 19824b0b4de00fa7…
2019-12-13 00:20 UTC2019-12N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 198274a2ff9319b5…
2022-03-09 01:35 UTC2022-03N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 1982bb7c543d1eb4…
2021-12-28 21:50 UTC2021-12N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 1982782e0a99824c…
2021-05-05 16:15 UTC · 3 captures of this ZIP2021-05N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 198287673890dc5c…
2021-03-12 10:30 UTC2021-03N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 19825aa47cf7b7d7…
2020-12-22 03:56 UTC2020-12N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 19828869cabd3fbd…
2020-11-12 02:37 UTC2020-11N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 1982c0c555d07b60…
2019-12-14 00:12 UTC2019-12N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 19823f01610625f2…
2019-09-15 20:21 UTC2019-09N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 1982b00525d2431f…
2019-07-19 19:46 UTC2019-07N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 1982ea99ee380514…
2024-03-16 18:09 UTC · 4 captures of this ZIP2024-03N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 19826a51e52b5d6a…
2024-02-18 07:12 UTC2024-02N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 19821c564ffb4f44…
2023-12-20 04:57 UTC2023-12N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 1982ea1830bbd6c7…
2023-11-28 05:40 UTC · 2 captures of this ZIP2023-11N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 1982a72a2bbeb626…
2023-10-25 00:34 UTC · 2 captures of this ZIP2023-10N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 19829b2671bbb829…
2023-07-15 15:27 UTC · 2 captures of this ZIP2023-07N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 1982a67488948f0b…
2023-06-13 01:57 UTC · 3 captures of this ZIP2023-06N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 19823f0d92c62455…
2023-05-13 08:27 UTC2023-05N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 1982053a50430f4f…
2023-01-26 05:58 UTC2023-01N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 19823bdfa0b2c4d7…
2022-11-12 20:34 UTC · 5 captures of this ZIP2022-11N018264-001DANTRIUM20MG/VIALINJECTABLE / INJECTIONAPRLD, RS, Approved before 19823a93d1ddd44b…

Observed Orange Book normalized TE history#

Normalized TE history page 1 of 2 · 44 observed states.

Captured, Edition, Application-product table
CapturedEditionApplication-productTE codeOrderSource SHA-256
2026-10-15 13:18:302026-09N018264-001AP1c2088c7a36db…
2026-09-14 22:38:342026-08N018264-001AP184e616aacf4f…
2026-08-18 06:07:402026-07N018264-001AP1caaa826d4ba7…
2026-02-19 14:30 UTC2026-02N018264-001AP1011fe1cb6892…
2025-12-14 10:44 UTC · 2 captures of this ZIP2025-12N018264-001AP131067a03dcf5…
2025-08-23 18:47 UTC2025-08N018264-001AP16a471c1ec25d…
2025-03-22 03:13 UTC · 3 captures of this ZIP2025-03N018264-001AP1fd3edfee7708…
2025-02-26 10:13 UTC · 3 captures of this ZIP2025-02N018264-001AP1b8a1b40f171c…
2025-01-19 17:59 UTC · 7 captures of this ZIP2025-01N018264-001AP103ed91905a0d…
2024-12-13 21:23 UTC · 2 captures of this ZIP2024-12N018264-001AP12680178bc6a6…
2024-09-14 05:58 UTC · 2 captures of this ZIP2024-09N018264-001AP15bbf6a4d5a75…
2024-11-08 22:44 UTC · 3 captures of this ZIP2024-11N018264-001AP1d8e5a09893c0…
2024-10-29 15:01 UTC2024-10N018264-001AP1d06236e962d9…
2024-08-13 05:28 UTC · 3 captures of this ZIP2024-08N018264-001AP179d66fd596c7…
2024-07-13 05:37 UTC · 2 captures of this ZIP2024-07N018264-001AP1301d65b070ca…
2024-06-18 03:08 UTC · 5 captures of this ZIP2024-06N018264-001AP11e350fbaab3a…
2024-05-31 18:47 UTC2024-05N018264-001AP18072bd15b7f6…
2022-06-29 02:47 UTC · 2 captures of this ZIP2022-06N018264-001AP15c6f7cd8ea54…
2022-04-08 23:34 UTC2022-04N018264-001AP15d02ea3f76ae…
2022-04-04 05:41 UTC2022-04N018264-001AP14b0b4de00fa7…
2019-12-13 00:20 UTC2019-12N018264-001AP174a2ff9319b5…
2022-03-09 01:35 UTC2022-03N018264-001AP1bb7c543d1eb4…
2021-12-28 21:50 UTC2021-12N018264-001AP1782e0a99824c…
2021-05-05 16:15 UTC · 3 captures of this ZIP2021-05N018264-001AP187673890dc5c…
2021-03-12 10:30 UTC2021-03N018264-001AP15aa47cf7b7d7…
2020-12-22 03:56 UTC2020-12N018264-001AP18869cabd3fbd…
2020-11-12 02:37 UTC2020-11N018264-001AP1c0c555d07b60…
2019-12-14 00:12 UTC2019-12N018264-001AP13f01610625f2…
2019-09-15 20:21 UTC2019-09N018264-001AP1b00525d2431f…
2019-07-19 19:46 UTC2019-07N018264-001AP1ea99ee380514…
2024-03-16 18:09 UTC · 4 captures of this ZIP2024-03N018264-001AP16a51e52b5d6a…
2024-02-18 07:12 UTC2024-02N018264-001AP11c564ffb4f44…
2023-12-20 04:57 UTC2023-12N018264-001AP1ea1830bbd6c7…
2023-11-28 05:40 UTC · 2 captures of this ZIP2023-11N018264-001AP1a72a2bbeb626…
2023-10-25 00:34 UTC · 2 captures of this ZIP2023-10N018264-001AP19b2671bbb829…
2023-07-15 15:27 UTC · 2 captures of this ZIP2023-07N018264-001AP1a67488948f0b…
2023-06-13 01:57 UTC · 3 captures of this ZIP2023-06N018264-001AP13f0d92c62455…
2023-05-13 08:27 UTC2023-05N018264-001AP1053a50430f4f…
2023-01-26 05:58 UTC2023-01N018264-001AP13bdfa0b2c4d7…
2022-11-12 20:34 UTC · 5 captures of this ZIP2022-11N018264-001AP13a93d1ddd44b…

openFDA label cross-check#

OpenFDA label data provides additional search and identifier links. DailyMed’s Structured Product Label is the canonical label on FDA.report. Matching records are deduplicated before they are shown below.

Matched openFDA labels page 1 of 1 · 1 matching rows.

Brand, Generic, Manufacturer table
BrandGenericManufacturerSPL set IDEffective dateAvailable safety fieldsJoin
DantriumDANTROLENE SODIUMPar Health USA, LLC4df35098-8702-46be-ac67-30cfdf1aa5702026-03-10Warnings, Adverse reactionsExact identifier
ndc (package): 42023-123-06
ndc (product): 42023-123
ndc11 (package): 42023012306
spl id: dd4a56ce-80e3-4794-94a8-cb2b14695b89
spl set id: 4df35098-8702-46be-ac67-30cfdf1aa570

Reported adverse events (FAERS/openFDA)#

Adverse event summaries are temporarily unavailable. Other product information remains available.