Some Relpax warnings and precautions to be aware of concern the drug's potential for increasing one's risk for a heart attack. Prior to taking Relpax, you should tell your healthcare provider if you have any kind of heart problems, high blood pressure, or a history of a stroke. Other precautions and warnings involve potential drug interactions that may occur when Relpax is taken with other medicines.

• 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
• 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.