The side effects reported in association with the use of Tigerfil are usually mild to moderate and of a short duration.
Frequencies are defined as: Very Common: (≥1/10), common (≥1/100 to <1/10), uncommon (≥1/1000 to <1/100), rare (≥1/10,000 to <1/1000).
Very Common: Headache.
Common: Facial flushing, indigestion, effects on vision (including colour tinge to vision, light sensitivity, blurred vision or reduced sharpness of vision), stuffy nose and dizziness.
Uncommon: Vomiting, skin rash, bleeding at the back of the eye, eye irritation, bloodshot eyes/red eyes, eye pain, double vision, abnormal sensation in the eye, irregular or rapid heartbeat, muscle pain, drowsiness, reduced sense of touch, vertigo, tinnitus, nausea, dry mouth, chest pain and tiredness.
Rare: High and low blood pressure, fainting, stroke, nosebleed and sudden decrease or loss of hearing.
Additional side effects reported from post-marketing experience include: Pounding heartbeat, chest pain, sudden death, heart attack or temporary decreased blood flow to parts of the brain. Most, but not all of these men had heart problems before taking this medicine. It is not possible to determine whether these events were directly related to Tigerfil. Cases of convulsions or seizures have also been reported.
Get in a semi-sitting position and try to relax if chest pains are experienced during or after intercourse.
Others: Sudden wheeziness, difficulty in breathing or dizziness, swelling of the eyelids, face, lips or throat.
Prolonged and sometimes painful erections have been reported after taking Tigerfil. Contact the physician if an erection lasts for >4 hrs.