Viagra ® is a brand-name medication developed by the biopharmaceutical company Pfizer. Sildenafil, or generic Viagra ®, is the active ingredient in Viagra ® and .Popular ED medications found online include: Viagra sildenafil : As the first FDA-approved PDE5 inhibitor for ED, sildenafil is taken 30 minutes to four hours before sexual intercourse to help achieve and maintain an erection. Our Verdict While all options have pros and cons, cost-effectiveness and whether or not there is a preference for an everyday or as-needed option will likely determine the best choice. Both options require valid medical documentation, but some online services only require a health questionnaire to be filled out and reviewed for approval—meaning no face-to-face video interaction is needed. Erectile dysfunction can be caused by a variety of factors , including age, cardiovascular problems, diabetes, and other conditions that affect nerve function or blood flow. Cialis Daily tadalafil : This low-dose Cialis works by increasing blood flow to the penis over time, making it easier to have an erection when aroused. Like all other ED medications, Stendra inhibits the PDE5 enzyme, allowing for more blood flow and increasing the ability to get an erection.Best Low Cost: GoodRx. Fastest Delivery: Blink Health.: Sesame. Sign Up Now. Key Specs. Cost: Consultation prices vary based on the prescriber; $5 generic . Viagra is the brand name for sildenafil, a medication for treating erectile dysfunction (ED). BlueChew and Hims offer chewable forms of these medications, which . Viagra ® is a brand-name medication developed by the biopharmaceutical company Pfizer. Sildenafil, or generic Viagra ®, is the active ingredient in Viagra ® and .The most common symptoms of erectile dysfunction include difficulty achieving or maintaining an erection and reduced sexual desire. The generic versions are just as effective and much less expensive. Some also can’t be taken too close to meal times without impacting their effectiveness. Those with a history of blood pressure or heart issues, hormonal imbalances, mental health issues, and diabetes should consult their doctor before trying PDE5 inhibitors. You may be able to get an erection but are unable to keep it long enough for a satisfactory sexual encounter.