Your best source for authentic Viagra coupons is the official Viagra website, which is operated by the drug’s manufacturer, Pfizer Inc. As this is written, the site offers a coupon entitling the bearer to three free pills. A companion coupon, designed to be used with your second purchase, offers 30 percent off the total price of your second purchase of Viagra.

To take advantage of these offers, you’ll need to have a prescription from your doctor, and you’ll also have to make your purchase from a “participating pharmacy.” Since the site has no list of pharmacies taking part in this special offer, you’ll have to check around at local pharmacies to see if one or more in your area is participating. Present the first Viagra coupon with your prescription, and you’ll be given three free Viagra pills so that you can try the drug and see how well it works for you. If you’re satisfied with its results, you can get 30 percent off the price of your next purchase. According to the fine print, the second coupon entitles you to 30 percent savings “off of the amount of your copay or your out-of-pocket cost, with a maximum savings of $90.”

While searching the Internet, you are likely to find many other Viagra discount coupons, most of which entitle you to savings at the retail pharmacy that is distributing the coupon.