Levsin

Levsin®
(hyoscyamine sulfate) Tablets USP

DRUG DESCRIPTION

Levsin® tablets (hyoscyamine sulfate tablets USP) contain 0.125 mg hyoscyamine sulfate formulated for oral administration.

Levsin® (hyoscyamine) is one of the principal anticholinergic/antispasmodic components of belladonna alkaloids. The empirical formula is (C17H23NO3)2•H2SO4•2H2O and the molecular weight is 712.85. Chemically, it is benzeneacetic acid, a-(hydroxymethyl)-, 8-methyl-8-azabicyclo [3.2.1.] oct-3-yl ester, [3(S)-endo]-, sulfate (2:1), dihydrate with the following structure:

Levsin® (hyoscyamine sulfate) Structural Formula Illustration

Each tablet also contains as inactive ingredients: FD&C blue #1, lactose monohydrate, magnesium stearate, mannitol, starch and stearic acid.

What are the possible side effects of hyoscyamine?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using hyoscyamine and call your doctor at once if you have any of these serious side effects:

  • diarrhea;
  • confusion, hallucinations;
  • unusual thoughts or behavior;
  • fast, pounding, or uneven heart rate;
  • rash or flushing (warmth, redness, or tingly feeling); or
  • eye pain.

Less serious side effects may include:

  • dizziness, drowsiness, feeling...

Read All Potential Side Effects and See Pictures of Levsin »

What are the precautions when taking hyoscyamine (Levsin)?

Before taking hyoscyamine, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: glaucoma (narrow-angle type, untreated open-angle type), enlarged prostate, urinary blockage problems, certain stomach/intestinal problems (e.g., slow gut, blockage, severe ulcerative colitis, infection), heart problems due to severe bleeding.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: overactive thyroid, other...

Read All Potential Precautions of Levsin »

Last reviewed on RxList: 11/17/2010
This monograph has been modified to include the generic and brand name in many instances.

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Levsin - User Reviews

Levsin User Reviews

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Report Problems to the Food and Drug Administration

 

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


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