There are several precautions and warnings with naratriptan to be aware of, such as those concerning an increased risk for serious heart problems associated with the drug. Other warnings and precautions to be aware of with naratriptan concern interactions that can occur when the drug is taken with other medications. Before you start taking naratriptan, be sure to notify your healthcare provider about any medical conditions you may have, such as high blood pressure, heart problems, or blood vessel conditions.

• Heart problems of any kind, especially a history of heart disease, angina, an irregular heart rhythm, or a heart attack
• A history of stroke, transient ischemic attack (TIA or "mini-stroke"), or other bleeding in the brain (such as a subarachnoid hemorrhage)
• High blood pressure (hypertension)
• High cholesterol
• Certain blood vessel conditions, such as peripheral vascular disease, ischemic bowel disease, or Raynaud's phenomenon
• Diabetes
• Kidney problems, including kidney failure (renal failure)
• Liver problems, including liver failure or cirrhosis
• Depression
• Gone through menopause
• Any allergies, including allergies to foods, dyes, or preservatives.
   

• Are pregnant or thinking of becoming pregnant
• Are breastfeeding
• Smoke
• Have a family history of heart disease.