HealthNotes

Your source for all nutrition related information

Start A Search, Or Explore HealthNotes Through The Featured Articles

Search Healthnotes

Hyoscyamine Sulfate

This form:

Pronounced

"hi-oh-SYE-uh-meen"

Uses

Hyoscyamine is used to treat a variety of stomach/intestinal problems such as cramps and irritable bowel syndrome. It is also used to treat other conditions such as bladder and bowel control problems, cramping pain caused by kidney stones and gallstones, and Parkinson's disease. In addition, it is used to decrease side effects of certain medications (drugs used to treat myasthenia gravis) and insecticides.

This medication works by decreasing acid production in the stomach, slowing down the natural movements of the gut, and relaxing muscles in many organs (such as the stomach, intestines, bladder, kidney, gallbladder). Hyoscyamine also lessens the amount of certain body fluids (such as saliva, sweat). This medication belongs to a class of drugs known as anticholinergics/antispasmodics.

How to Use This Medication

Take this medication by mouth as directed by your doctor, usually 30 to 60 minutes before meals.

The dosage is based on your medical condition and response to treatment. Do not increase your dose or take it more often than prescribed without consulting your doctor. Adults and children 12 years and older should not take more than 1.5 milligrams in 24 hours. Children aged 2 to 12 years should not take more than 0.75 milligrams in 24 hours. Ask your doctor or pharmacist for more information.

Antacids lower the absorption of hyoscyamine. If you use antacids, take them after meals and take hyoscyamine before meals; or take antacids at least 1 hour after taking hyoscyamine.

Drink plenty of fluids while taking this medication unless your doctor directs you otherwise.

Tell your doctor if your condition lasts or gets worse.

Copyright © 2025 TraceGains, Inc. All rights reserved.

RxAnswers™ is a copyrighted combined product from TraceGains and First DataBank, Inc.

Drug information is selected from data included with permission and copyrighted by First DataBank, Inc. This is a summary and does not contain all possible information about this product. For complete information about this product or your specific health needs, ask your healthcare professional. Always seek the advice of your healthcare professional if you have any questions about this product or your medical condition. This information is not intended as individual medical advice and does not substitute for the knowledge and judgment of your healthcare professional. This information does not contain any assurances that this product is safe, effective or appropriate for you.

This information is intended only for residents of the United States. Products sold under the same brand names in other countries may contain different ingredients.

Learn more about First DataBank

There are some limitations on the information provided in “Nutrient Interactions.” Do NOT rely solely on the information in this article. Please read the disclaimer.

Learn more about TraceGains, the company.

TraceGains and/or its suppliers make no warranties or representations as to the accuracy or completeness of this content herein or that of any organization referred or linked to within this content and will not be liable for any damages arising out of your access to or use of any information found herein or that of any organization referred to within this content.

Information expires December 2025.