What are special precautions for cyproheptadine (Periactin)?

You should be aware of special precautions before taking cyproheptadine (Periactin). Your doctor and pharmacist should discuss these precautions with you, which include:
  • Discuss with your doctor if you think you are allergic to cyproheptadine or any other antihistamines.
  • Make sure you tell your doctor and pharmacist every nonprescription substance you are taking, including vitamins, aspirin or any dietary supplements, including any prescription drugs you are taking.
  • Cyproheptadine may interact with other drugs, such as antidepressants, seizures, pain medications, drugs used for colds and coughs, sedatives, sleeping pills or tranquilizers and vitamins.
  • Make sure you tell your doctor if you have asthma, glaucoma, problems urinating, heart disease, high blood pressure or overactive thyroid gland.
  • Make sure you tell your doctor about your plans to get pregnant, if you are currently pregnant or if you are breastfeeding. Cyproheptadine might cause harm to a developing baby.
  • Cyproheptadine may cause drowsiness, so do not operate machinery or drink alcohol.
  • Talk to your doctor about cyproheptadine if you are older than 65.

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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.