Who makes Viagra and Cialis?

Cialis reaches maximum levels in the body between 30 minutes and 6 hours after taking it. It can be taken with food or on an empty stomach. Viagra (Viagra coupons | What is Viagra?), also known by its generic name sildenafil, was approved by the FDA in 1998 and is a popular drug made by Pfizer to treat ED.Dec 18, 2019

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