What are the side effects of cyproheptadine (Periactin)?

If you experience any of the following side effects of cyproheptadine (Periactin) that do not resolve or get worse, call your doctor:
  • Dry mouth, nose and throat
  • Drowsiness
  • Dizziness
  • Nausea
  • Chest congestion
  • Headaches
  • Excitement (especially in children)
  • Muscle weakness
Some side effects are more rare, but may be much more serious. Call your doctor right away you have:
  • Difficulty urinating
  • Problems with your vision
  • Nervousness

Continue Learning about Respiratory Agent

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.