What’s the Difference Between Viagra and Cialis?

Viagra works faster, but Cialis lasts 4x longer

Side effects also vary

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Viagra vs. Cialis: Speed vs Duration

Viagra vs Cialis

Viagra works faster than Cialis —1 hour onset time vs. up to 2 hours—but Cialis stays in your system over 4x longer than Viagra (36 hours vs 8 hours). The most common side effects of Cialis are back pain and nasal congestion. Headaches and indigestion are the most common side effects of Viagra.

Both Viagra (sildenafil) and Cialis (tadalafil) are effective about 75% of the time. So when it comes to Viagra vs. Cialis it’s really about how each medication fits into your sex life.

Viagra Works Faster than Cialis

If you know when you’ll have sex (“tonight and then again in the morning” vs. “sometime this weekend”), the quick onset time of Viagra is ideal. Also, if you’re sensitive to side effects like a headache or nasal congestion, the short shelf life of Viagra (6-8 hours) means you’re less likely to experience side effects for long.

Cialis Lasts Longer than Viagra

If you don’t like to schedule your sex life, Cialis might be the better choice. Cialis takes a little longer to start working, but it’s effective for 24–36 hours. Some guys can even take Cialis in low daily doses (2.5 mg or 5 mg) to combine flexibility and effectiveness without the increased risk of side effects at higher doses.

Talk to your doctor about your expectations for your ED medication, and report any side effects as soon as they occur. Your doctor will work with you to find the right medication and the right dose to give you the best results with the fewest side effects.

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