What Is GoodRx Gold? The patent was published in and expired in On 6 May , Pfizer , which manufactures Viagra, told the Associated Press they will begin selling the drug directly to people on its site. It does the comparison shopping for you! This development was credited largely “due to the introduction of generic products. If your pharmacist refuses to accept them, you can call GoodRx at To find the cheapest price for your medication, all you have to do is visit GoodRx.(1) One difference is that tadalafil (Cialis) is approved to treat both ED and BPH whereas sildenafil (Viagra) can only be used for ED. (2) Another difference is that sildenafil (Viagra) seems to reach its peak effect more quickly, but tadalafil (Cialis) lasts longer. (3) A third difference is that sildenafil (Viagra) can only be used as needed. Here’s what you can do. 1. Leave her alone. This may not be easy, so try to be patient. In the first two weeks, the bristles may look “spotty”, but take our word for it-it’s worth waiting a couple more weeks, and its appearance is likely to change for the better. A beard is a naughty thing, and at first every hair has its own life.  · GoodRx may be able to help you save over 95% off the average retail price of generic Viagra at certain pharmacies. The average retail price of the most common prescription of sildenafil could cost a couple hundred dollars, but you might be able to get that same prescription for as little as $11 with a GoodRx coupon.