July 28, 2016
Recommended Topic Related To:


"The U.S. Food and Drug Administration today approved Viberzi (eluxadoline) and Xifaxan (rifaximin), two new treatments, manufactured by two different companies, for irritable bowel syndrome with diarrhea (IBS-D) in adult men and women.



Donnatal Extentabs

Donnatal Extentabs Patient Information including How Should I Take

What should I discuss with my healthcare provider before taking belladonna alkaloids and phenobarbital (Donnatal Extentabs)?

You should not use this medication if you are allergic to atropine, hyoscyamine, scopolamine, or phenobarbital. You may not be able use this medication if you have:

  • enlarged prostate, urination problems;
  • a blockage in your intestines or digestive tract;
  • a stomach condition called paralytic ileus;
  • active bleeding;
  • severe ulcerative colitis or toxic megacolon;
  • a muscle disorder called myasthenia gravis;
  • a hiatal hernia or reflux disease; or
  • porphyria.

Before taking this medication, tell your doctor if you are allergic to any drugs or if you have:

  • a colostomy or ileostomy;
  • liver disease;
  • kidney disease;
  • glaucoma;
  • a thyroid disorder;
  • heart disease, high blood pressure, congestive heart failure;
  • a heart rhythm disorder; or
  • ulcerative colitis or stomach ulcer.

If you have any of these conditions, you may not be able to take belladonna alkaloids and phenobarbital, or you may need a dose adjustment or special tests during treatment.

FDA pregnancy category C. This medication may be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment.

It is not known whether this medication passes into breast milk or if it could harm a nursing baby. However, belladonna alkaloids and phenobarbital can slow breast milk production. Do not take this medication without telling your doctor if you are breast-feeding a baby.

Do not give this medication to a child without the advice of a doctor.

Older adults may be more likely to have side effects such as constipation, dry mouth, problems with urination, agitation, confusion, or severe memory problems.

How should I take belladonna alkaloids and phenobarbital (Donnatal Extentabs)?

Take this medication exactly as prescribed by your doctor. Do not take it in larger amounts or for longer than recommended. Follow the directions on your prescription label.

Take the medicine with a full glass of water.

Measure liquid medicine with a special dose-measuring spoon or cup, not a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist for one.

Call your doctor if your symptoms do not improve, or if they get worse.

This medication can cause you to have unusual results with certain medical tests. Tell any doctor who treats you that you are using belladonna alkaloids and phenobarbital.

Store belladonna alkaloids and phenobarbital at room temperature away from moisture and heat.

Keep track of how much of this medicine has been used from each new bottle. Phenobarbital is a drug of abuse and you should be aware if any person in the household is using this medicine improperly or without a prescription.

Side Effects Centers

Donnatal Extentabs - User Reviews

Donnatal Extentabs User Reviews

Now you can gain knowledge and insight about a drug treatment with Patient Discussions.

Here is a collection of user reviews for the medication Donnatal Extentabs sorted by most helpful. Patient Discussions FAQs

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.

GI Disorders

Get the latest treatment options.

Related Drugs
Health Resources
Use Pill Finder Find it Now See Interactions

Pill Identifier on RxList

  • quick, easy,
    pill identification

Find a Local Pharmacy

  • including 24 hour, pharmacies

Interaction Checker

  • Check potential drug interactions
Search the Medical Dictionary for Health Definitions & Medical Abbreviations