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Hyoscyamine, Atropine, Scopolamine, and Phenobarbital (hye oh SYE a meen, A troe peen, skoe POL a meen, & fee noe BAR bi tal)

Adult Medication

Brand Names: U.S.

Donnatal Extentabs®; Donnatal®; Hyonatol

What is this drug used for?

  • It is used to treat irritable bowel syndrome.
  • It is used to treat ulcer disease.
  • It is used to treat certain types of bowel swelling.
  • It may be given to you for other reasons. Talk with the doctor.

What do I need to tell my doctor BEFORE I take this drug?

  • If you have an allergy to hyoscyamine, atropine, scopolamine, phenobarbital, or any other part of this drug.
  • If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like 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, a hernia that involves your stomach (hiatal hernia), myasthenia gravis, slow-moving GI (gastrointestinal) tract, trouble passing urine, or ulcerative colitis.
  • If you have ever had porphyria.
  • If you have been restless or overexcited in the past after taking phenobarbital.
  • If you are addicted to drugs or alcohol, or have been in the past.
This is not a list of all drugs or health problems that interact with this drug.
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take this drug with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.

What are some things I need to know or do while I take this drug?

  • Tell dentists, surgeons, and other doctors that you use this drug.
  • 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.
  • 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.
  • Avoid beer, wine, mixed drinks, or other drugs and natural products that slow your actions.
  • Be careful in hot weather or while being active. Drink lots of fluids to stop fluid loss.
  • If you are 65 or older, use this drug with care. You could have more side effects.
  • Birth control pills and other hormone-based birth control may not work as well to prevent pregnancy. Use 2 kinds of birth control while taking this drug.
  • This drug may cause harm to the unborn baby if you take it while you are pregnant. If you get pregnant while taking this drug, call your doctor right away.
  • Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using this drug while you are pregnant.
  • Tell your doctor if you are breast-feeding. You will need to talk about any risks to your baby.

What are some side effects that I need to call my doctor about right away?

WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
  • Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
  • Trouble breathing.
  • Feeling very tired or weak.
  • Very bad dizziness or passing out.
  • Big change in balance.
  • Change in thinking clearly and with logic.
  • Signs of low mood (depression), thoughts of killing yourself, nervousness, emotional ups and downs, thinking that is not normal, anxiety, or lack of interest in life.
  • Hallucinations.
  • Memory problems or loss.
  • Not able to sleep.
  • Very hard stools (constipation).
  • Loose stools (diarrhea).
  • Not sweating during activities or in warm temperatures.
  • Muscle pain or cramping.
  • A fast heartbeat.
  • A heartbeat that does not feel normal.
  • Not able to pass urine.
  • Change in eyesight.
  • Very bad headache.
  • Very upset stomach or throwing up.
  • A very bad skin reaction (Stevens-Johnson syndrome/toxic epidermal necrolysis) may happen. It can cause very bad health problems that may not go away, and sometimes death. Get medical help right away if you have signs like red, swollen, blistered, or peeling skin (with or without fever); red or irritated eyes; or sores in your mouth, throat, nose, or eyes.

What are some other side effects of this drug?

All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
  • Feeling lightheaded, sleepy, having blurred eyesight, or a change in thinking clearly.
  • Dizziness.
  • Headache.
  • Hard stools (constipation).
  • Dry mouth.
  • Change in balance.
  • Less sweating.
  • Upset stomach or throwing up.
  • Feeling tired or weak.
  • Feeling nervous and excitable.
  • Change in taste.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to your national health agency.

How is this drug best taken?

Use this drug as ordered by your doctor. Read and follow the dosing on the label closely.

All products:

  • Take with or without food. Take with food if it causes an upset stomach.
  • Take as you have been told by your doctor.

Liquid:

  • Measure liquid doses carefully. Use the measuring device that comes with this drug. If there is none, get an oral syringe, a dropper, a spoon, or a cup (only for older children) from your pharmacist.

Long-acting products:

  • Swallow whole. Do not chew, break, or crush.

What do I do if I miss a 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.

How do I store and/or throw out this drug?

  • Store at room temperature.
  • Store in a dry place. Do not store in a bathroom.
  • Keep all drugs out of the reach of children and pets.
  • Check with your pharmacist about how to throw out unused drugs.

General drug facts

  • If your symptoms or health problems do not get better or if they become worse, call your doctor.
  • Do not share your drugs with others and do not take anyone else’s drugs.
  • Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
  • Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
  • Some drugs may have another patient information leaflet. If you have any questions about this drug, please talk with your doctor, pharmacist, or other health care provider.
  • If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.

Consumer Information Use and Disclaimer

This information should not be used to decide whether or not to take this medicine or any other medicine. Only the healthcare provider has the knowledge and training to decide which medicines are right for a specific patient. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about this medicine. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not specific medical advice and does not replace information you receive from the healthcare provider. You must talk with the healthcare provider for complete information about the risks and benefits of using this medicine.

Copyright

Copyright © 2014 Clinical Drug Information, LLC and Lexi-Comp, Inc.