That’s not to say there aren’t just as many illegitimate sites. It’s best to check your chosen provider’s site for more information. People with heart conditions should never take ED medications without consulting a doctor. However, others work on a cash-pay basis and don’t partner with insurance companies. You should also call your insurance company to see if they cover erectile dysfunction medications. You can see an in-person provider or speak with a doctor virtually. In some patients, the use of VIAGRA with alpha-blockers can lead to a drop in blood pressure or to fainting medicines called HIV protease inhibitors, such as ritonavir Norvir , indinavir sulfate Crixivan , saquinavir Fortovase or Invirase , or atazanavir sulfate Reyataz some types of oral antifungal medicines, such as ketoconazole Nizoral and itraconazole Sporanox some types of antibiotics, such as clarithromycin Biaxin , telithromycin Ketek , or erythromycin other medicines that treat high blood pressure other medicines or treatments for ED VIAGRA contains sildenafil, which is the same medicine found in another drug called REVATIO.AdAccepted At More TSearch By Rx & Location. Teva’s version of sildenafil debuted at an average cash price of around $30 per pill, roughly 50% cheaper than brand-name Viagra. Since then, more manufacturers have brought . Best source for buying affordable generic Viagra: Lemonaid Sildenafil. Skip to review. Best for bulk ordering Viagra and generic Viagra: Optum Store Viagra. Best subscription .