Cardiovascular: Vasoconstrictive complications of a serious nature may occur at times. These include ischemia, cyanosis, absence of pulse, cold extremities, gangrene, precordial distress and pain, EKG changes and muscle pains. Although these effects occur most commonly with long-term therapy at relatively high doses, they have also been reported with short-term or normal doses. Other cardiovascular adverse effects include transient tachycardia or bradycardia and hypertension.
Gastrointestinal: Nausea and vomiting.
Neurological: paresthesias, numbness, weakness, and vertigo.
Allergic: Localized edema and itching.
Drug Abuse And Dependence: There have been reports of drug abuse and psychological dependence in patients on CAFERGOT® (ergotamine tartrate and caffeine) (ergotamine tartrate and caffeine tablets, USP) therapy. Due to the chronicity of vascular headaches, it is imperative that patients be advised not to exceed recommended dosages with long-term use to avoid ergotism (see PRECAUTIONS).