Cyproheptadine Side Effects

Common side effects of cyproheptadine are listed below. Call your doctor for medical advice if these side effects are severe or persistent.

• Dry mouth, dry nose, dry throat
• Dry eyes and blurred vision
• Dizziness 
• Drowsiness
• Nausea
• Headache
• Chest congestion
• Muscle weakness
• Unusual excitement (especially in children)

Rarely, cyproheptadine can also cause more serious side effects. Call your doctor right away or seek emergency medical attention if you develop:

• Vision problems
• Urinary retention (difficulty urinating)
• Nervousness

The above list may not include all the potential side effects of cyproheptadine. Contact your health care provider if your side effects are unusual or severe or they do not get better over time. You can also report unusual side effects to the Food and Drug Administration at 1-800-FDA-1088.

Cyproheptadine Overdose: In case of an overdose of cyproheptadine, call your doctor immediately. You can also call the National Poison Control Center at 1-800-222-1222. Call 911 if a person has collapsed, stopped breathing, stopped responding, or had a seizure.

Source: FDA