Donnatal

Generic ingredients: Phenobarbital, Hyoscyamine sulfate, Atropine sulfate, Scopolamine hydrobromide

Why is Donnatal prescribed?

Donnatal is a mild antispasmodic medication; it has been used with other drugs for relief of cramps and pain associated with various stomach, intestinal, and bowel disorders, including irritable bowel syndrome, acute colitis, and duodenal ulcer.

One of its ingredients, phenobarbital, is a mild sedative.

Most important fact about Donnatal

Phenobarbital, one of the ingredients of Donnatal, can be habit-forming. If you have ever been dependent on drugs, do not take Donnatal.

How should you take Donnatal?

Take Donnatal one-half hour to 1 hour before meals. Use it exactly as prescribed.

• If you miss a dose...
  Take it as soon as you remember. If it is almost time for your next dose, skip the one you missed and go back to your regular schedule. Never take 2 doses at the same time.

• Storage instructions...
  Store at room temperature in a tightly closed container. Protect from light.

What side effects may occur?

Side effects cannot be anticipated. If any develop or change in intensity, inform your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking Donnatal.

• Side effects may include:
  Agitation, allergic reaction, bloated feeling, blurred vision, constipation, decreased sweating, difficulty sleeping, difficulty urinating, dilation of the pupil of the eye, dizziness, drowsiness, dry mouth, excitement, fast or fluttery heartbeat, headache, hives, impotence, muscular and bone pain, nausea, nervousness, rash, reduced sense of taste, suppression of lactation, vomiting, weakness

Why should Donnatal not be prescribed?

Do not take Donnatal if you suffer from the eye condition called glaucoma, diseases that block the urinary or gastrointestinal tracts, or myasthenia gravis, a condition in which the muscles become progressively paralyzed. Also, you should not use Donnatal if you have intestinal atony (loss of strength in the intestinal muscles), unstable cardiovascular status, severe ulcerative colitis (chronic inflammation and ulceration of the bowel), or hiatal hernia (a rupture in the diaphragm above the stomach). You should also avoid Donnatal if you have acute intermittent porphyria—a disorder of the metabolism in which there is severe abdominal pain and sensitivity to light.