Donnatal Oral

Donnatal Oral Side Effects

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

For more details about heat tolerance, see Precautions section.

A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including:

• rash
• itching/swelling (especially of the face/tongue/throat)
• severe dizziness
• trouble breathing

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

Call your doctor for medical advice about side effects. In the US, you may report side effects to the Food and Drug Administration (FDA) at 1-800-FDA-1088.

In Canada, you may report side effects to Health Canada at 1-866-234-2345.

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Drug Interactions