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Antimuscarinic Combination


Treats symptoms of irritable bowel syndrome (IBS). Also treats colitis, peptic ulcers, or other digestive problems. Often used with other medicines.

Brand Names

Bellatal ER
Donnatal Extentabs

When You Should Not Take The Medication

You should not use this medicine if you have had an allergic reaction to atropine, chlordiazepoxide, clidinium, hyoscyamine, phenobarbital, or scopolamine, or any other belladonna alkaloid medicine. You should not use this medicine if you have glaucoma (increased pressure in your eyes), or if you have porphyria. You should not use this medicine if you have an enlarged prostate or trouble urinating, or if you have myasthenia gravis. You should not use this medicine if you have hiatal hernia or certain intestinal problems, such as a blockage in your bowels, or if you have severe colitis (inflammation of the bowel) that has caused ulcers.

How To Store And Dispose Of This Medicine

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.

Keep all medicine away from children and never share your medicine with anyone.

Possible Side Effects While Using This Medicine

Call your doctor right away if you notice any of these side effects:
Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing.
Fast or uneven heart beat.

If you notice these less serious side effects, talk with your doctor:
Blurred vision.
Decrease in how much you sweat.
Decrease in how often and how much you urinate.
Dry mouth.
Feeling bloated.
Feeling unusually angry, excited, nervous, or weak.
Nausea, vomiting, or constipation.
Pain in your bones or muscles.
Unable to sleep.

If you notice other side effects that you think are caused by this medicine, tell your doctor.