What are the side effects of Donnatal?

Answer 1

This medication is used along with other medications to treat certain intestine problems (irritable bowel syndrome, enterocolitis). This medication contains several medications, phenobarbital and belladonna alkaloids (hyoscyamine, atropine, scopolamine). This medication belongs to a class of drugs known as anticholinergic/antispasmodic drugs. It works by decreasing intestine cramping and calming the nerves. Drowsiness, dizziness, blurred vision, dry mouth, dry eyes, constipation, or fast heartbeat may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly. To relieve dry mouth, suck on hard candy or ice chips, chew gum, drink water, or use a saliva substitute. To prevent constipation, maintain a diet adequate in fiber, and drink plenty of water. If you become constipated while using this drug, consult your pharmacist for help in selecting a laxative (e.g., stimulant-type with stool softener). Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. Tell your doctor immediately if any of these unlikely but serious side effects occur: fast/irregular heartbeat, weakness, headache, mental/mood changes (e.g., nervousness, confusion, agitation, excitement), loss of taste, nausea, vomiting, decreased sweating, reduced tolerance of heat/strenuous exercise, problems starting the flow of urine, decreased sexual ability/interest. This information is all included with the drug by your pharmacist. You should receive a handout along with the medication. Make sure you read it. If you have any questions, please ask your pharmacist.