text: get prescription online to get viagra? get prescription online to get viagra you can only get a prescription from a health-care provider.  he or she should ask you health questions, examine you and make sure you are a candidate for the drug and not on meds that interact with it.  if you have a valid prescription, there are online pharmacies that can fill your order, but the cost is not less than costco or the like.  there is no such thing as "generic" viagra - it is still under patent with pfizer.  no pde 5 inhibitor is avaliable in generic form yet.