Like all medicines, this medicine can cause side effects although not everybody gets them. The side effects reported in association with the use of /../ are usually mild to moderate and of a short duration.
If you have chest pains during or after intercourse:
- Get in a semi-sitting position and try to relax.
- Do not use nitrates to treat your chest pain.
- Contact your doctor immediately.
All medicines including /../ can cause allergic reactions. You should contact your doctor immediately if you experience any of the following symptoms after taking /../: 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 /../. If you have an erection which lasts for more than 4 hours, you should contact a doctor immediately.
If you experience a sudden decrease or loss of vision, stop taking /../ and contact your doctor immediately.
Very common (may affect more than 1 in 10 people):
Common (may affect up to 1 in 10 people) include:
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 (may affect up to 1 in 100 people) include:
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, feeling sleepy, reduced sense of touch, vertigo, ringing in the ears, nausea, dry mouth, chest pain and feeling tired.
Rare (may affect up to 1 in 1,000 people) include:
High blood pressure, low blood pressure, fainting, stroke, nosebleed and sudden decrease or loss of hearing.
PIL day 160
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 /../. Cases of convulsions or seizures and serious skin reactions characterised by rash, blisters, peeling skin and pain which require immediate medical attention have also been reported.
If you get any side effects, talk to your doctor or pharmacist. This includes any side effects not listed in this leaflet.