Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop using zolmitriptan and call your doctor at once if you have:
feeling of tightness in your jaw, neck, throat, or chest;
fast or pounding heartbeats, dizziness;
sudden and severe stomach pain and bloody diarrhea;
heart attack symptoms--chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating; or
high levels of serotonin in the body--agitation, hallucinations, fever, fast heart rate, overactive reflexes, nausea, vomiting, diarrhea, loss of coordination, fainting.
Common side effects may include:
pain or tightness in your throat or chest;
dry mouth, upset stomach;
pressure or heavy feeling anywhere in your body;
drowsiness, feeling tired; or
flushing (warmth, redness, or tingly feeling).
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Zolmitriptan side effects (more detail)
