Read on to learn where to buy Viagra and sildenafil online — plus, more about how Viagra.When taken at the correct time and paired with sexual stimulation, the erection lasts long enough for successful intercourse. An erection results from an increase in blood flow to the penis. Alpha-blockers are sometimes prescribed for prostate problems or high blood pressure. These sites may send you dangerous counterfeits instead of the meds you need. The best online pharmacies are accredited by the National Association of Boards of Pharmacy and are licensed in every state in which they trade. Generic vs. Especially tell your healthcare provider if you take any of the following: medicines called nitrates medicines called guanylate cyclase stimulators such as Adempas riociguat medicines called alpha-blockers, such as Hytrin terazosin HCl , Flomax tamsulosin HCl , Cardura doxazosin mesylate , Minipress prazosin HCl , Uroxatral alfuzosin HCl , Jalyn dutasteride and tamsulosin HCl , or Rapaflo silodosin.Viagra. Compare prices and print coupons for Sildenafil (Generic Revatio and Viagra) and other drugs at CVS, Walgreens, and other pharmacies. Prices start at $ While generic sildenafil and Viagra are equally safe and effective, the medications have one key. CHOOSE BRAND-NAME VIAGRA The original little blue pill prescribed by doctors for over 20 years Clinically proven to treat men with erectile dysfunction (ED) Ongoing .Men who are taking nitrates or nitroglycerin Those with hypotension Men who have heart disease or heart failure ED can be the first sign of other health conditions, including cardiovascular disease and diabetes. Need help locating one? Box , Mission, KS If your pharmacy does not participate, you may be able to submit a request for a rebate in connection with this Savings Offer. These sites may send you dangerous counterfeits instead of the meds you need. Insurance can help you save even more on consultations and medications. Under 25 73 or older Have not had a physical exam in the past 5 years which included a genital exam Any condition where sex is not advised Taking the medicine nitroglycerin or other medicines that contain nitrates Don’t know your blood pressure Low blood pressure or unexplained fainting or dizziness Kidney disease Physical abnormality of the penis, including Peyronie’s disease Your assigned birth sex is female Delivery Services. You can see an in-person provider or speak with a doctor virtually.