What it is
Cialis is a brand name for tadalafil, a prescription PDE5 inhibitor.
General differences
Tadalafil is generally described as having a longer duration of effect than some other medicines in the class.
Common side effects
Headache, indigestion, back pain, muscle aches and flushing have been reported.
Important warnings
Must not be combined with nitrates. Interactions and contraindications apply.
Consult a professional
Only a qualified healthcare professional can determine suitability.