Headache is the side effect most commonly reported (affecting more than 1 in 10 users). Other common side effects are an irregular heartbeat, tightness in the chest, flushing of the face, hot flushes, nausea, indigestion, visual disturbances, a stuffy nose and dizziness (affecting up to 1 in 10 users).
Following your doctor’s instructions, and reading the patient information leaflet that comes with your treatment, can help to reduce the risk of side effects.