Cialis side effects
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Headache, stomach upset, back pain, muscle pain, nasal stuffiness, flushing, pain in arms or legs, dizziness, or vision changes may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.
Sexual activity may put extra strain on your heart, especially if you have heart problems. If you have heart problems or experience any of the following serious side effects during sex, stop and tell your doctor immediately of: severe dizziness, fainting, chest pain.
In the unlikely event you have a painful or prolonged erection (lasting more than 4 hours), stop using this drug and seek immediate medical attention or permanent problems could occur.
A serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction include: rash, itching, unusual swelling, severe dizziness, trouble breathing.
If you notice other effects not listed above, contact your doctor or pharmacist.
NOTES:
Do not share this medication with others, since they may have a problem that is not effectively treated by this drug, or they may have a condition that is complicated by this drug.