Phenohytro

Manufacturer
Winder Laboratories, LLC
Effective date
2019-12-27
Label type
HUMAN PRESCRIPTION DRUG LABEL
Version
5
Source
full-release
Hydrated at
2026-05-31 21:22:11

Label at a glance#

ProductPhenohytro
Active ingredientPHENOBARBITAL, HYOSCYAMINE SULFATE, ATROPINE SULFATE, SCOPOLAMINE HYDROBROMIDE
Label structure12 sections

Indications and uses

Based on a review of this drug by the National Academy of Sciences–National Research Council and/or other information, FDA has classified the indications as follows: “Possibly” effective: For use as adjunctive therapy in the treatment of irritable bowel syndrome (irritable colon, spastic colon, mucous colitis) and acute enterocolitis. May also be useful as adjunctive therapy in the treatment of duodenal ulcer. Fin...

Dosage and administration

The dosage of Phenohytro™ should be adjusted to the needs of the individual patient to assure symptomatic control with a minimum of adverse effects. Phenohytro™ Tablets - Adults: One or two Phenohytro™ Tablets three or four times a day according to condition and severity of symptoms.

Storage and handling

Phenohytro™ Tablets are supplied as: white, round tablets debossed “112” on one side and plain on the other side. Bottles of 100 tablets, NDC 75826-118-10 Bottles of 1000 tablets, NDC 75826-118-00 Store at 20°-25°C (68°-77°F) [see USP Controlled Room Temperature]. Protect from light and moisture. Dispense in a tight, light-resistant container as defined in the USP using a child-resistant closure. Use safety closur...

Label contents#

Full prescribing information#

DESCRIPTION

DESCRIPTION SECTION

Each Phenohytro™ Tablet contains:

Phenobarbital, USP..................................... 16.2 mg
Hyoscyamine Sulfate, USP...................... 0.1037 mg
Atropine Sulfate, USP .............................0.0194 mg
Scopolamine Hydrobromide, USP ...........0.0065 mg

Inactive Ingredients: Anhydrous Lactose, Calcium Stearate, Colloidal Silicon Dioxide, Corn Starch, and Microcrystalline Cellulose.

CLINICAL PHARMACOLOGY

CLINICAL PHARMACOLOGY SECTION

Phenohytro™ Tablets combine natural belladonna alkaloids in a specific, fixed ratio with phenobarbital to provide peripheral anticholinergic/antispasmodic action and mild sedation.

INDICATIONS AND USAGE

INDICATIONS & USAGE SECTION

Based on a review of this drug by the National Academy of Sciences–National Research Council and/or other information, FDA has classified the indications as follows: “Possibly” effective: For use as adjunctive therapy in the treatment of irritable bowel syndrome (irritable colon, spastic colon, mucous colitis) and acute enterocolitis.

May also be useful as adjunctive therapy in the treatment of duodenal ulcer.

Final classification of the less-than-effective indications requires further investigation.

IT HAS NOT BEEN SHOWN CONCLUSIVELY WHETHER ANTICHOLINERGIC/ANTISPASMODIC DRUGS AID IN THE HEALING OF A DUODENAL ULCER, DECREASE THE RATE OF RECURRENCES OR PREVENT COMPLICATIONS.

CONTRAINDICATIONS

CONTRAINDICATIONS SECTION

Phenohytro™ Tablets are contraindicated in patients with glaucoma; obstructive uropathy (for example, bladder neck obstruction due to prostatic hypertrophy); obstructive disease of the gastrointestinal tract (as in achalasia, pyloroduodenal stenosis, etc.); paralytic ileus, intestinal atony of the elderly or debilitated patient; unstable cardiovascular status in acute hemorrhage; severe ulcerative colitis especially if complicated by toxic megacolon; myasthenia gravis; hiatal hernia associated with reflux esophagitis.

Phenohytro™ Tablets are contraindicated in patients with known hypersensitivity to any of the ingredients. Phenobarbital is contraindicated in acute intermittent porphyria and in those patients in whom phenobarbital produces restlessness and/or excitement.

WARNINGS

WARNINGS SECTION

Phenohytro™ Tablets can cause fetal harm when administered to a pregnant woman. Animal reproduction studies have not been conducted with Phenohytro™. If this drug is used during pregnancy, or if the patient becomes pregnant while taking this drug, the patient should be apprised of the potential hazard to the fetus.

In the presence of a high environmental temperature, heat prostration (fever and heatstroke due to decreased sweating) can occur with belladonna alkaloids.

Diarrhea may be an early symptom of incomplete intestinal obstruction, especially in patients with ileostomy or colostomy. Administration of Phenohytro™ Tablets to a patient exhibiting diarrhea would be inappropriate and possibly harmful.

Phenohytro™ Tablets may produce drowsiness or blurred vision. Should these occur, the patient should be warned not to engage in activities requiring mental alertness, such as operating a motor vehicle or other machinery, and not to perform hazardous work.

Phenobarbital may decrease the effect of anticoagulants, and necessitate larger doses of the anticoagulant for optimal effect. When the phenobarbital is discontinued, the dose of the anticoagulant may have to be decreased.

Phenobarbital may be habit forming and should not be administered to individuals known to be addiction prone or to those with a history of physical and/or psychological dependence upon drugs.

Since barbiturates are metabolized in the liver, they should be used with caution and initial doses should be small in patients with hepatic dysfunction.

PRECAUTIONS

PRECAUTIONS SECTION

GENERAL

GENERAL PRECAUTIONS SECTION

Phenohytro™ Tablets should be used with caution in patients with: autonomic neuropathy, hepatic or renal disease, hyperthyroidism, coronary heart disease, congestive heart failure, cardiac arrhythmias, tachycardia, and hypertension.

Belladonna alkaloids may produce a delay in gastric emptying (antral stasis) which would complicate the management of gastric ulcer.

Phenohytro™ Tablets should not be used in the presence of complication of biliary tract disease.

In the event of overdosage of Phenohytro™ Tablets, a curare-like action may occur.

CARCINOGENESIS, MUTAGENESIS, IMPAIRMENT OF FERTILITY

CARCINOGENESIS & MUTAGENESIS & IMPAIRMENT OF FERTILITY SECTION

Long-term studies in animals have not been performed to evaluate carcinogenic potential of Phenohytro™ Tablets.

USE IN SPECIAL PATIENT POPULATIONS

USE IN SPECIFIC POPULATIONS SECTION

PREGNANCY

PREGNANCY SECTION

PREGNANCY CATEGORY D

Animal reproduction studies have not been conducted with Phenohytro™. There is positive evidence of human fetal risk based on adverse reaction data from investigational or marketing experience or studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks (see WARNINGS).

NURSING MOTHERS

NURSING MOTHERS SECTION

It is not known whether this drug is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when Phenohytro™ Tablets are administered to a nursing woman.

GERIATRIC USE

GERIATRIC USE SECTION

Elderly patients may react with symptoms of excitement, agitation, drowsiness, and other untoward manifestations to even small doses of the drug.

ADVERSE REACTIONS

ADVERSE REACTIONS SECTION

Adverse reactions may include xerostomia; urinary hesitancy and retention; blurred vision; tachycardia; palpitation; mydriasis; cycloplegia; increased ocular tension; loss of taste sense; headache; nervousness; drowsiness; weakness; dizziness; insomnia; nausea; vomiting; impotence; suppression of lactation; constipation; bloated feeling; musculoskeletal pain; severe allergic reaction or drug idiosyncrasies, including anaphylaxis, urticaria and other dermal manifestations; and decreased sweating.

Acquired hypersensitivity to barbiturates consists chiefly in allergic reactions that occur especially in persons who tend to have asthma, urticaria, angioedema and similar conditions. Hypersensitivity reactions in this category include localized swelling, particularly of the eyelids, cheeks, or lips, and erythematous dermatitis. Rarely, exfoliative dermatitis (e.g. Stevens-Johnson syndrome and toxic epidermal necrolysis) may be caused by phenobarbital and can prove fatal. The skin eruption may be associated with fever, delirium, and marked degenerative changes in the liver and other parenchymatous organs. In a few cases, megaloblastic anemia has been associated with the chronic use of phenobarbital.

Phenobarbital may produce excitement in some patients, rather than a sedative effect. In patients habituated to barbiturates, abrupt withdrawal may produce delirium or convulsions.

To report SUSPECTED ADVERSE REACTIONS, contact Winder Laboratories, LLC at 1-770-307-0702 or the FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

DOSAGE AND ADMINISTRATION

DOSAGE & ADMINISTRATION SECTION

The dosage of Phenohytro™ should be adjusted to the needs of the individual patient to assure symptomatic control with a minimum of adverse effects.

Phenohytro™ Tablets - Adults: One or two Phenohytro™ Tablets three or four times a day according to condition and severity of symptoms.

OVERDOSAGE

OVERDOSAGE SECTION

The signs and symptoms of overdose are headache, nausea, vomiting, blurred vision, dilated pupils, hot and dry skin, dizziness, dryness of the mouth, difficulty in swallowing, and CNS stimulation. Treatment should consist of gastric lavage, emetics, and activated charcoal. If indicated, parenteral cholinergic agents such as physostigmine or bethanechol chloride should be used.

HOW SUPPLIED / STORAGE AND HANDLING

HOW SUPPLIED SECTION

Phenohytro™ Tablets are supplied as: white, round tablets debossed “112” on one side and plain on the other side.

Bottles of 100 tablets, NDC 75826-118-10
Bottles of 1000 tablets, NDC 75826-118-00

Store at 20°-25°C (68°-77°F) [see USP Controlled Room Temperature].

Protect from light and moisture.

Dispense in a tight, light-resistant container as defined in the USP using a child-resistant closure. Use safety closures when dispensing this product unless otherwise directed by a physician or requested by purchaser.

Manufactured by:
Winder Laboratories, LLC
Winder, GA 30680

www.phenohytro.com

Rev. 03/16

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL

Phenohytro™ - 100 Tablets

Rev. 07/19Rev. 07/19

DailyMed RxNorm Mappings#

RxCUI, RxNorm string, TTY table
RxCUIRxNorm stringTTYSPL version
1046815atropine sulfate 0.0194 MG / hyoscyamine sulfate 0.1037 MG / PHENobarbital 16.2 MG / scopolamine HBr 0.0065 MG Oral TabletPSN5
1739887Phenohytro 0.0194 MG / 0.1037 MG / 16.2 MG / 0.0065 MG Oral TabletPSN5
1739887atropine sulfate 0.0194 MG / hyoscyamine sulfate 0.1037 MG / phenobarbital 16.2 MG / scopolamine hydrobromide 0.0065 MG Oral Tablet [Phenohytro]SBD5
1046815atropine sulfate 0.0194 MG / hyoscyamine sulfate 0.1037 MG / phenobarbital 16.2 MG / scopolamine hydrobromide 0.0065 MG Oral TabletSCD5
1739887Phenohytro (atropine sulfate 0.0194 MG / hyoscyamine sulfate 0.1037 MG / phenobarbital 16.2 MG / scopolamine HBr 0.0065 MG) Oral TabletSY5

DailyMed Pharmacologic Classes#

Class, Version, Type table
ClassVersionTypeEffective
ATROPINE Pharmacologic Class Indexing2Indexing - Pharmacologic Class20180813
SCOPOLAMINE Pharmacologic Class Indexing2Indexing - Pharmacologic Class20180813

DailyMed Product Concepts#

Product concept, Relation, Version table
Product conceptRelationVersionEffective
6c78bd43-efb4-4aeb-b7d8-eff1532f7822Product name420250801
41231c1e-8789-4da7-ac52-77fa90a85bf5Product name220250304
fe8ea78e-e1a4-44bf-a6b2-42eed76976bbProduct name520250218
e77ab9a2-80cf-4832-bff0-469bbc7cbcd0Product name220250214
5f84b7a7-523a-f042-dffb-1dadcd9b2407Product name420240110
e3e67a66-d325-4d80-8f9d-059e736d7b00Product name120230912
0cbc6fb2-78c0-4b88-98f0-a4cc76ff95caProduct name120230719
04cd5dc0-102f-46cb-8dbc-ca38dd2628d0Product name320230317
dfd25202-b8d2-4628-9213-f3e0f9eafce5Product name420210513
4199bf9b-4718-828a-6dd6-ac2fbbd61687Product name120140508
4edd8af5-cea7-ae42-8023-e91c5335db1dProduct name120140508
d3908afb-7784-440f-c406-88294732d36aProduct name120140508

DailyMed Package Descriptions#

Package NDC, Product, Description table
Package NDCProductDescriptionFormQuantityStrengthSPL version
75826-118-00Phenohytro1000 in 1 BOTTLE, PLASTICTABLET10005
75826-118-10Phenohytro100 in 1 BOTTLE, PLASTICTABLET1005

DailyMed Dashboard NDC Coverage#

NDC, Dashboard title, SPL version table
NDCDashboard titleSPL versionValidationDashboard ZIP
75826-118PHENOHYTRO (PHENOBARBITAL, HYOSCYAMINE SULFATE, ATROPINE SULFATE, SCOPOLAMINE HYDROBROMIDE) TABLET [WINDER LABORATORIES, LLC]5Current NDC, Legacy NDC, 2 package rows20250110_27c8baac-f8ce-46d8-8a0f-ff769dd408d9.zip

DailyMed Billing Units#

Package NDC, Billing unit, Product NDC table
Package NDCBilling unitProduct NDCDailyMed indexing SPLSPL versionEffective
75826-118-10EA - Each75826-118978d16e6-2d08-4274-b8c0-8f30eea29c8812016-03-04

Products#

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

DailyMed product names page 1 of 1 · 14 matching rows.

NDC Codes#

Product NDC, Package NDC table
Product NDCPackage NDC
75826-11875826-118-10, 75826-118-00

Ingredients#

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

DailyMed ingredient rows page 1 of 1 · 9 matching rows.

Source Document#

Source XML

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
PhenohytroPHENOBARBITAL, HYOSCYAMINE SULFATE, ATROPINE SULFATE, SCOPOLAMINE HYDROBROMIDEWinder Laboratories, LLC27c8baac-f8ce-46d8-8a0f-ff769dd408d92019-12-27Warnings, Adverse reactionsExact identifier
ndc (package): 75826-118-10
ndc (package): 75826-118-00
ndc (product): 75826-118
ndc11 (package): 75826011800
ndc11 (package): 75826011810
spl id: 2b37a6e2-6e67-1233-e063-6294a90a26ad
spl set id: 27c8baac-f8ce-46d8-8a0f-ff769dd408d9

Reported adverse events (FAERS/openFDA)#

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