Do not use Imitrex Injection if you are allergic to any of its contents. Ensure you tell your doctor about all medications you are currently taking, any medical conditions you may have, as well as any drug allergies. If you have ever suffered from health conditions such as high blood pressure, chest pain or pressure, diseased arteries connected to a leg or arm, heart attack, heart disease, poor blood flow, stroke, transient ischemic attack, liver disease, or a heartbeat that is not normal like Wolff-Parkinson-White syndrome; consult your doctor before using this medication as you may need a dose adjustment or special cautionary measures while using Imitrex.
If you have taken medications for depression or Parkinson’s disease in the last two weeks (14 days) inform your doctor has you may increase your blood pressure significantly by taking Imitrex.
If you take another medication containing sumatriptan, consult your doctor; you may need a dose adjustment or special directions when taking Imitrex.
If you have taken almotriptan, eletriptan, frovatriptan, naratriptan, rizatriptan, or zolmitriptan, ergotamine, methysergide, dihydroergotamine, or any drug like them in the last 24 hours; consult your doctor before using this medication (Imitrex) as you may need a dose adjustment or special cautionary measures while using Imitrex.
Rarely, a very serious and sometimes deadly heart problem, such as heart attack or irregular heartbeat, may occur within a few hours of taking Imitrex Injection. If you first dose is not in a hospital setting, monitor yourself for warning signs of heart problems during the first day of treatment.
You will need to discuss the benefits and risks of using Imitrex while pregnant or breastfeeding with your doctor before using this medication.