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Generic Name: hyoscyamine (hye oh SYE a meen)
Brand Names: Levsin
Levsin is used to treat stomach problems such as cramps and irritable bowel syndrome and conditions such as bladder and bowel control problems. Includes Levsin side effects, interactions and indications.
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Drug Information:
Levsin (hyoscyamine) produces many effects in the body, including relief from muscle spasms. Levsin also reduces the fluid secretions of many organs and glands in the body, such as the stomach, pancreas, lungs, saliva glands, sweat glands, and nasal passages. Levsin is used to treat many different stomach and intestinal disorders, including peptic ulcer and irritable bowel syndrome. It is also used to control muscle spasms in the bladder, kidneys, or digestive tract, and to reduce stomach acid. This medicine is sometimes used to reduce tremors and rigid muscles in people with symptoms of Parkinson's disease. Learn more

Levsin Side Effects

Levsin Side Effects

Note: This document contains side effect information about hyoscyamine. Some of the dosage forms listed on this page may not apply to the brand name Levsin.

For the Consumer

Applies to hyoscyamine: oral conventional tablets and sublingual tablets, oral extended-release capsules and tablets, oral oral solution and elixir, oral orally disintegrating tablets, parenteral injection

Side effects include:

Most adverse effects are manifestations of pharmacologic effects at muscarinic-cholinergic receptors and usually are reversible when therapy is discontinued.

Severity and frequency of adverse effects are dose related and individual intolerance varies greatly; adverse effects occasionally may be obviated by a reduction in dosage but this also may eliminate potential therapeutic effects.

Adverse effects include dry 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, mental confusion and/or excitement (especially in geriatric patients), short-term memory loss, hallucinations, and decreased sweating.

For Healthcare Professionals

Applies to hyoscyamine: compounding powder, injectable solution, oral capsule extended release, oral liquid, oral solution, oral spray, oral tablet, oral tablet chewable, oral tablet disintegrating, oral tablet extended release, sublingual tablet


Frequency not reported: Tachycardia, palpitations


Frequency not reported: Dryness of the mouth, nausea, vomiting, constipation, bloated feeling, abdominal pain, diarrhea


Frequency not reported: Urinary hesitancy and retention, impotence


Frequency not reported: Allergic reactions or drug idiosyncrasies

Nervous system

Frequency not reported: Loss of taste, headache, drowsiness, dizziness, ataxia, speech disturbance, some degree of mental confusion and/or excitement (especially in elderly persons), short-term memory loss


Frequency not reported: Blurred vision, mydriasis, increased ocular tension


Frequency not reported: Nervousness, insomnia, hallucinations


Frequency not reported: Weakness, fatigue


Frequency not reported: Urticaria and other dermal manifestations, decreased sweating

Editorial References and Review

Medically reviewed by BestRx Medical Team Last updated on 1/1/2020.

Source: Drugs.com Levsin