Table of Contents > Drug > Hyoscyamine, Atropine, Scopolamine, and Phenobarbital Print

Hyoscyamine, Atropine, Scopolamine, and Phenobarbital

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Notes
Related terms
Uses
Dosing
Safety
Author information

Notes

    Related terms
    • Brand Names: U.S.: Donnatal Extentabs®;Donnatal®;Hyonatol

    Uses
    • It is used to slow the speed in the stomach and GI (gastrointestinal) tract.
    • It is used to treat irritable bowel syndrome.
    • It is used to treat muscle spasms of the GI (gastrointestinal) tract, gallbladder system, or urinary system.
    • Hyoscyamine, atropine, and scopolamine slows movement in the GI (gastrointestinal) tract and urinary tract.
    • Phenobarbital calms the brain.

    Dosing

    How to take

    • Take with or without food. Take with food if it causes an upset stomach.
    • If you are taking this drug for irritable bowel syndrome or spasms of the GI (gastrointestinal) tract, take 30 to 60 minutes before meals.
    • Long-acting products: Swallow whole. Do not chew, break, or crush.
    • There is a liquid (elixir) if you cannot swallow pills.
    • Those who have feeding tubes may also use the liquid. Flush the feeding tube before and after this drug is given.
    • Drink lots of noncaffeine liquids unless told to drink less liquid by your doctor.

    Missed Dose

    • Take a missed dose as soon as you think about it.
    • If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
    • Do not take 2 doses at the same time or extra doses.
    • Do not change the dose or stop this drug. Talk with the doctor.

    Storage

    • Store at room temperature.
    • Protect tablets from water. Do not store in a bathroom or kitchen.

    Safety



    Warnings

    • Sometimes drugs are not safe when you take them with certain other drugs. Taking them together can cause bad side effects. This is one of those drugs. Be sure to talk to your doctor about all the drugs you take.

    Avoid

    • If you have an allergy to hyoscyamine, atropine, scopolamine, phenobarbital, or any other part of this drug.
    • Tell your doctor if you are allergic to any drugs. Make sure to tell about the allergy and what signs you had. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
    • If you have any of these health problems: Bleeding problems, bowel block, glaucoma, myasthenia gravis, porphyria, slow-moving GI (gastrointestinal) tract, trouble passing urine, or ulcerative colitis.

    Precautions

    • This drug may be habit-forming with long-term use.
    • If you have been taking this drug for many weeks, talk with your doctor before stopping. You may want to slowly stop this drug.
    • If you have a history of a drug or drinking problem, talk with your doctor.
    • If you have heart disease, talk with your doctor.
    • Check all drugs you are taking with your doctor. This drug may not mix well with some other drugs.
    • Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
    • Avoid beer, wine, mixed drinks, or other drugs and natural products that slow your actions.
    • You may get sunburned more easily. Avoid sun, sunlamps, and tanning beds. Use sunscreen and wear clothing and eyewear that protects you from the sun.
    • Be careful in hot weather. Drink lots of fluids to stop fluid loss.
    • Tell your doctor if you are pregnant or plan on getting pregnant.
    • Tell your doctor if you are breast-feeding.
    • Birth control pills and other hormone-based birth control may not work to stop pregnancy. Use 2 kinds of birth control while taking this drug.

    Side Effects

    • Feeling lightheaded, sleepy, having blurred eyesight, or a change in thinking clearly. Avoid driving and doing other tasks or actions that call for you to be alert or have clear eyesight until you see how this drug affects you.
    • Hard stools (constipation). Drinking more liquids, working out, or adding fiber to your diet may help. Talk with your doctor about a stool softener or laxative.
    • Dry mouth. Good mouth care, sucking hard, sugar-free candy, or chewing sugar-free gum may help. See a dentist often.

    Contact a healthcare provider

    • If you think there was an overdose, call your local poison control center or ER right away.
    • Signs of a very bad reaction to the drug. These include wheezing; chest tightness; fever; itching; bad cough; blue or gray skin color; seizures; or swelling of face, lips, tongue, or throat.
    • Feeling very tired or weak.
    • Very bad dizziness or passing out.
    • Change in thinking clearly and with logic.
    • Very hard stools (constipation).
    • Not sweating during activities or in warm temperatures.
    • Not able to pass urine.
    • Any rash.
    • Side effect or health problem is not better or you are feeling worse.

    General Statements

    • If you have a very bad allergy, wear an allergy ID at all times.
    • Do not share your drugs with others and do not take anyone else's drugs.
    • Keep all drugs out of the reach of children and pets.
    • Most drugs may be thrown away in household trash after mixing with coffee grounds or kitty litter and sealing in a plastic bag.
    • In Canada, take any unused drugs to the pharmacy. Also, visit http://www.hc-sc.gc.ca/hl-vs/iyh-vsv/med/disposal-defaire-eng.php#th to learn about the right way to get rid of unused drugs.
    • Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
    • Call your doctor for help with any side effects. If in the U.S., you may also call the FDA at 1-800-FDA-1088 or if in Canada, you may also call Health Canada's Vigilance Program at 1-866-234-2345.
    • Talk with the doctor before starting any new drug, including OTC, natural products, or vitamins.

    Author information
    • Copyright © 1978-2013 Lexi-Comp Inc. All rights reserved.

    Copyright © 2011 Natural Standard (www.naturalstandard.com)


    The information in this monograph is intended for informational purposes only, and is meant to help users better understand health concerns. Information is based on review of scientific research data, historical practice patterns, and clinical experience. This information should not be interpreted as specific medical advice. Users should consult with a qualified healthcare provider for specific questions regarding therapies, diagnosis and/or health conditions, prior to making therapeutic decisions.

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