Cialis Side Effects. Headache, stomach upset, back pain, muscle pain, stuffy nose, flushing, or dizziness may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly. To reduce the risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.

cialis side effects with alcohol One difference between the drugs is how long they stay in your system. Cialis provides penile hardness (the ability to obtain an erection) over a longer period than Viagra because it lasts up to 18 hours, while Viagra only lasts for about 4 to 6.

How long does Cialis last? On the other hand, the effects of Cialis last noticeably longer than the effects of Viagra, normally up to 36 hours. That's a full 1.5 days! Don't be alarmed, though; that doesn't mean you'll have an erection for 1.5 days straight.


cialis reviews Peak plasma concentrations of Cialis are reached within 30 minutes to six hours (average time two hours) of a dose. Effects of 'as needed' Cialis last for up to 36 hours. The recommended starting dose for once daily Cialis for ED is 2.5mg; once daily Cialis for BPH, 5mg; and 'as needed' Cialis, 10mg.