All of the following adverse reactions have been reported with hyoscyamine sulfate. Adverse reactions may include dryness of the mouth; urinary hesitancy and retention; blurred vision; tachycardia; palpitations; mydriasis; increased ocular tension; loss of taste; headache; nervousness; drowsiness; weakness; fatigue; dizziness; insomnia; nausea; vomiting; impotence; constipation; bloated feeling; abdominal pain; diarrhea; allergic reactions or drug idiosyncrasies; urticaria and other dermal manifestations; ataxia; speech disturbance; some degree of mental confusion and/or excitement (especially in elderly persons); short-term memory loss; hallucinations; and decreased sweating.
To report suspected adverse reactions, contact Virtus Pharmaceuticals, LLC at 1-888-848-3593 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
The signs and symptoms of overdose are headache, nausea, vomiting, blurred vision, dilated pupils, hot dry skin, dizziness, dryness of the mouth, difficulty in swallowing, and CNS stimulation. Measures to be taken are immediate lavage of the stomach and injection of physostigmine 0.5 to 2 mg intravenously and repeated as necessary up to a total of 5 mg. Fever may be treated symptomatically (tepid water sponge baths, hypothermic blanket). Excitement to a degree of which demands attention may be managed with sodium thiopental 2% solution given slowly intravenously or chloral hydrate (100-200 mL of a 2% solution) by rectal infusion. In the event of progression of the curare-like effect to paralysis of the respiratory muscles, artificial respiration should be instituted and maintained until effective respiratory action returns.
In rats, the LD50 for hyoscyamine is 375 mg/kg. Hyoscyamine sulfate is dialyzable.
Dosage may be adjusted according to the conditions and severity of symptoms.
Hyoscyamine Sulfate Tablets, USP must be taken orally.
Adults and pediatric patients 12 years of age and older: 1 to 2 tablets every four hours or as needed. Do not exceed 12 tablets in 24 hours.
Pediatric patients 2 to under 12 years of age: ½ to 1 tablet every four hours or as needed. Do not exceed 6 tablets in 24 hours.
Bottles of 100
Store at controlled room temperature 20° to 25°C (68° to 77°F); excursions permitted to 15° to 30°C (59° to 86°F). [See USP Controlled Room Temperature].
Dispense in tight, light-resistant containers as defined in USP/NF with a child-resistant closure.
KEEP THIS AND ALL DRUGS OUT OF THE REACH OF CHILDREN.
Virtus Pharmaceuticals, LLC
Langhorne, PA 19047
NDC 76439-308 -10
| HYOSCYAMINE SULFATE |
hyoscyamine sulfate tablet
|Labeler — Virtus Pharmaceuticals (079659493)|
Revised: 04/2021 Virtus Pharmaceuticals
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