Vasostrict by is a Prescription medication manufactured, distributed, or labeled by Medical Purchasing Solutions, LLC. Drug facts, warnings, and ingredients follow.
The most common adverse reactions include decreased cardiac output, bradycardia, tachyarrhythmias, hyponatremia and ischemia (coronary, mesenteric, skin, digital). ( 6)
To report SUSPECTED ADVERSE REACTIONS, contact Par Pharmaceutical at 1-800-828-9393 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
Inspect parenteral drug products for particulate matter and discoloration prior to use, whenever solution and container permit.
Vasostrict ® Solution for Dilution, 20 units/mL and 200 units/10 mL (20 units/mL)
Dilute Vasostrict ® in normal saline (0.9% sodium chloride) or 5% dextrose in water (D5W) prior to use for intravenous administration. Discard unused diluted solution after 18 hours at room temperature or 24 hours under refrigeration.
|Fluid restriction?||Final concentration||Mix|
2.5 mL (50 units)
5 mL (100 units)
Vasostrict ® Premixed Solution, 40 units/100 mL (0.4 units/mL) and 60 units/100 mL (0.6 units/mL)
This product does not require further dilution prior to administration.
In general, titrate to the lowest dose compatible with a clinically acceptable response.
The recommended starting dose is:
Post-cardiotomy shock: 0.03 units/minute
Septic Shock: 0.01 units/minute
Titrate up by 0.005 units/minute at 10- to 15-minute intervals until the target blood pressure is reached. There are limited data for doses above 0.1 units/minute for post-cardiotomy shock and 0.07 units/minute for septic shock. Adverse reactions are expected to increase with higher doses.
After target blood pressure has been maintained for 8 hours without the use of catecholamines, taper vasopressin injection by 0.005 units/minute every hour as tolerated to maintain target blood pressure.
Vasostrict ® (vasopressin injection, USP) is a clear, practically colorless solution for intravenous administration available as 20 units/mL in a single dose vial and 200 units/10 mL (20 units/mL) in a multiple dose vial. To be used after dilution.
Vasostrict ® is also available premixed as 40 units/100 mL (0.4 units/mL) and 60 units/100 mL (0.6 units/mL) in single dose vials. Ready to use.
® 10 mL multiple dose vial is contraindicated in patients with known allergy or hypersensitivity to 8‑L-arginine vasopressin or chlorobutanol. The 1 mL single dose vial does not contain chlorobutanol and is therefore contraindicated only in patients with a known allergy or hypersensitivity to 8-L-arginine vasopressin.
A decrease in cardiac index may be observed with the use of vasopressin.
Patients may experience reversible diabetes inspidus, manifested by the development of polyuria, a dilute urine, and hypernatremia, after cessation of treatment with vasopressin. Monitor serum electrolytes, fluid status and urine output after vasopressin discontinuation. Some patients may require readministration of vasopressin or administration of desmopressin to correct fluid and electrolyte shifts.
The following adverse reactions associated with the use of vasopressin were identified in the literature. Because these reactions are reported voluntarily from a population of uncertain size, it is not possible to estimate their frequency reliably or to establish a causal relationship to drug exposure.
Bleeding/lymphatic system disorders: Hemorrhagic shock, decreased platelets, intractable bleeding
Cardiac disorders: Right heart failure, atrial fibrillation, bradycardia, myocardial ischemia
Gastrointestinal disorders: Mesenteric ischemia
Hepatobiliary: Increased bilirubin levels
Renal/urinary disorders: Acute renal insufficiency
Vascular disorders: Distal limb ischemia
Skin: Ischemic lesions
Reversible diabetes insipidus [see Warnings and Precautions (5.2)]
Use with catecholamines is expected to result in an additive effect on mean arterial blood pressure and other hemodynamic parameters. Hemodynamic monitoring is recommended; adjust the dose of vasopressin as needed.
Use with indomethacin may prolong the effect of Vasostrict ® on cardiac index and systemic vascular resistance. Hemodynamic monitoring is recommended; adjust the dose of vasopressin as needed [see Clinical Pharmacology (12.3)].
Use with ganglionic blocking agents may increase the effect of Vasostrict ® on mean arterial blood pressure. Hemodynamic monitoring is recommended; adjust the dose of vasopressin as needed [see Clinical Pharmacology (12.3)].
Use with drugs suspected of causing SIADH (e.g., SSRIs, tricyclic antidepressants, haloperidol, chlorpropamide, enalapril, methyldopa, pentamidine, vincristine, cyclophosphamide, ifosfamide, felbamate) may increase the pressor effect in addition to the antidiuretic effect of Vasostrict ®. Hemodynamic monitoring is recommended; adjust the dose of vasopressin as needed.
Use with drugs suspected of causing diabetes insipidus (e.g., demeclocycline, lithium, foscarnet, clozapine) may decrease the pressor effect in addition to the antidiuretic effect of Vasostrict ®. Hemodynamic monitoring is recommended; adjust the dose of vasopressin as needed.
There are no available data on Vasostrict ® use in pregnant women to inform a drug associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. Animal reproduction studies have not been conducted.
Dose adjustments during pregnancy and the postpartum period: Because of increased clearance of vasopressin in the second and third trimester, the dose of Vasostrict® may need to be increased [see Dosage and Administration (2.2) and Clinical Pharmacology (12.3)] .
Maternal adverse reactions: Vasostrict
® may produce tonic uterine contractions that could threaten the continuation of pregnancy.
There are no data on the presence of vasopressin injection in either human or animal milk, the effects on the breastfed infant, or the effects on milk production.
Safety and effectiveness of Vasostrict ® in pediatric patients with vasodilatory shock have not been established.
Clinical studies of vasopressin 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, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy [see Warnings and Precautions (5), Adverse Reactions (6), and Clinical Pharmacology (12.3)] .
Overdosage with Vasostrict ® can be expected to manifest as consequences of vasoconstriction of various vascular beds (peripheral, mesenteric, and coronary) and as hyponatremia. In addition, overdosage may lead less commonly to ventricular tachyarrhythmias (including Torsade de Pointes), rhabdomyolysis, and non-specific gastrointestinal symptoms.
Direct effects will resolve within minutes of withdrawal of treatment.
Vasopressin is a polypeptide hormone. Vasostrict ® is a sterile, aqueous solution of synthetic arginine vasopressin for intravenous administration.
The 1 mL solution contains vasopressin 20 units/mL, 1.36 mg sodium acetate buffer and Water for Injection, USP. The 10 mL solution contains vasopressin 20 units/mL, 1.36 mg sodium acetate buffer, chlorobutanol, NF 0.5% as a preservative and Water for Injection, USP. Sodium hydroxide and hydrochloric acid are included to adjust to a pH of 3.8.
The 100 mL solution contains vasopressin 0.4 units/mL or 0.6 units/mL. Each mL of the 0.4 unit/mL strength also contains dextrose anhydrous, 0.0546 mg acetic acid, 0.012 mg sodium acetate and Water for Injection, USP. Each mL of the 0.6 unit/mL strength also contains dextrose anhydrous, 0.0546 mg acetic acid, 0.012 mg sodium acetate and Water for Injection, USP. Sodium hydroxide and hydrochloric acid are included to adjust to a pH of 3.8.
The chemical name of vasopressin is Cyclo (1-6) L-Cysteinyl-L-Tyrosyl-L-Phenylalanyl-L-Glutaminyl-L-Asparaginyl-L-Cysteinyl-L-Prolyl-L-Arginyl-L-Glycinamide. It is a white to off-white amorphous powder, freely soluble in water. The structural formula is:
Molecular Formula: C 46H 65N 15O 12S 2 Molecular Weight: 1084.23
One mg is equivalent to 530 units.
Vasopressin causes vasoconstriction by binding to V1 receptors on vascular smooth muscle coupled to the Gq/11-phospholipase C-phosphatidyl-inositol-triphosphate pathway, resulting in the release of intracellular calcium. In addition, vasopressin stimulates antidiuresis via stimulation of V 2 receptors which are coupled to adenyl cyclase.
At therapeutic doses exogenous vasopressin elicits a vasoconstrictive effect in most vascular beds including the splanchnic, renal and cutaneous circulation. In addition, vasopressin at pressor doses triggers contractions of smooth muscles in the gastrointestinal tract mediated by muscular V 1-receptors and release of prolactin and ACTH via V 3 receptors. At lower concentrations typical for the antidiuretic hormone vasopressin inhibits water diuresis via renal V 2 receptors. In addition, vasopressin has been demonstrated to cause vasodilation in numerous vascular beds that are mediated by V2, V 3, oxytocin and purinergic P2 receptors.
In patients with vasodilatory shock vasopressin in therapeutic doses increases systemic vascular resistance and mean arterial blood pressure and reduces the dose requirements for norepinephrine. Vasopressin tends to decrease heart rate and cardiac output. The pressor effect is proportional to the infusion rate of exogenous vasopressin. The pressor effect reaches its peak within 15 minutes. After stopping the infusion the pressor effect fades within 20 minutes. There is no evidence for tachyphylaxis or tolerance to the pressor effect of vasopressin in patients.
Vasopressin plasma concentrations increase linearly with increasing infusion rates from 10 to 200 μU/kg/min. Steady state plasma concentrations are achieved after 30 minutes of continuous intravenous infusion.
Distribution Vasopressin does not appear to bind plasma protein. The volume of distribution is 140 mL/kg.
At infusion rates used in vasodilatory shock (0.01 to 0.1 units/minute), the clearance of vasopressin is 9 to 25 mL/min/kg in patients with vasodilatory shock. The apparent t 1/2 of vasopressin at these levels is ≤10 minutes.
Serine protease, carboxipeptidase and disulfide oxido-reductase cleave vasopressin at sites relevant for the pharmacological activity of the hormone. Thus, the generated metabolites are not expected to retain important pharmacological activity.
Vasopressin is predominantly metabolized and only about 6% of the dose is excreted unchanged into urine.
Pregnancy: Because of a spillover into blood of placental vasopressinase, the clearance of exogenous and endogenous vasopressin increases gradually over the course of a pregnancy. During the first trimester of pregnancy, the clearance is only slightly increased. However, by the third trimester the clearance of vasopressin is increased about 4-fold and at term up to 5-fold. After delivery, the clearance of vasopressin returns to preconception baseline within two
Drug Interactions Indomethacin more than doubles the time to offset for vasopressin’s effect on peripheral vascular resistance and cardiac output in healthy subjects [ see Drug Interactions (7.2)] .
The ganglionic blocking agent tetra-ethylammonium increases the pressor effect of vasopressin by 20% in healthy subjects [ see Drug Interactions (7.3)] .
Halothane, morphine, fentanyl, alfentanyl and sufentanyl do not impact exposure to endogenous vasopressin.
No formal carcinogenicity or fertility studies with vasopressin have been conducted in animals. Vasopressin was found to be negative in the in vitro bacterial mutagenicity (Ames) test and the in vitro Chinese hamster ovary (CHO) cell chromosome aberration test. In mice, vasopressin has been reported to have an effect on function and fertilizing ability of spermatozoa.
Vasostrict ® (vasopressin injection, USP) is a clear, practically colorless solution for intravenous administration available as:
NDC: 42023-164-10: A carton of 10 single dose vials. Each vial contains vasopressin 1 mL at 20 units/mL.
NDC: 42023-164-25: A carton of 25 single dose vials. Each vial contains vasopressin 1 mL at 20 units/mL.
NDC: 42023-190-01: A carton of 1 multiple dose vial. Each vial contains vasopressin 10 mL at 200 units/10 mL (20 units/mL).
NDC: 42023-219-10: A carton of 10 single dose vials. Each vial contains vasopressin 100 mL at 40 units/100 mL (0.4 units/mL).
NDC: 42023-220-10: A carton of 10 single dose vials. Each vial contains vasopressin 100 mL at 60 units/100 mL (0.6 units/mL).
Store between 2°C and 8°C (36°F and 46°F). Do not freeze.
Vials may be held up to 12 months upon removal from refrigeration to room temperature storage conditions (20°C to 25°C [68°F to 77°F], USP Controlled Room Temperature), anytime within the labeled shelf life. Once removed from refrigeration, unopened vial should be marked to indicate the revised 12 month expiration date. If the manufacturer’s original expiration date is shorter than the revised expiration date, then the shorter date must be used. Do not use Vasostrict ® beyond the manufacturer’s expiration date stamped on the vial.
After initial entry into the 10 mL vial, the remaining contents must be refrigerated. Discard the refrigerated 10 mL vial after 30 days after first puncture.
The storage conditions and expiration periods are summarized in the following table.
2°C to 8°C (36°F to 46°F)
Unopened Room Temperature
20°C to 25°C (68°F to 77°F)
Do not store above 25°C (77°F)
Opened (After First Puncture)
1 mL Vial
Until manufacturer expiration date
12 months or until manufacturer expiration date, whichever is earlier
10 mL Vial
Until manufacturer expiration date
12 months or until manufacturer expiration date, whichever is earlier
|100 mL Vial||Until manufacturer expiration date||12 months or until manufacturer expiration date, whichever is earlier||N/A|
(Vasopressin Injection, USP)
20 Units per mL
For Intravenous Infusion
Must be diluted prior to use
Store between 2°C and 8°C (36°F and 46°F). Do not store above 25°C (77°F).
Vials may be held at 20°C to 25°C (68°F to 77°F) for up to 12 months.
1 x 1 mL Single Dose Vial
|Labeler - Medical Purchasing Solutions, LLC (601458529)|
|Medical Purchasing Solutions, LLC||601458529||repack(71872-7264)|
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85914777 4660355 Live/Registered
JHP Pharmaceuticals, LLC