Many over-the-counter (OTC) products may be advertised to help with ED. Examples of these products include: Schwartz BG, Kloner RA (July 2010). "Drug interactions with phosphodiesterase-5 inhibitors used for the treatment of erectile dysfunction or pulmonary hypertension". Circulation. 122 (1): 88–95. doi: 10.1161/CIRCULATIONAHA.110.944603. PMID 20606131. S2CID 13207143.

How often can I take Viagra? Can I take it every day? Viagra should only be taken as needed before sexual activity. You can take it every day, if needed. But you should not take Viagra more than once each day. Talk with your doctor about how often you can take this drug. If you have certain health conditions, your doctor may recommend that you take Viagra less often.There aren’t any known interactions between Viagra and Adderall XR. But that doesn’t mean that no interaction exists. The Journal of Urology– Most of the research on saw palmetto has to do with prostate and urinary health, not libido and testosterone. We aim to provide consumers with helpful, in-depth information about nutrition and weight-loss products. All product names, logos and brands are property of their respective owners. More information is needed to know if Viagra is safe or effective to treat premature ejaculation. If you’d like, talk with your doctor about the best treatment option for this condition. Mukherjee S (6 December 2017). "Why Pfizer Is About to Slash Viagra's Price in Half". Fortune . Retrieved 6 December 2017.

Andro 400 is formulated with natural ingredients, including Eurycoma Longifolia, to improve men’s performance and energy levels. Competitive Generic Therapy Approvals". U.S. Food and Drug Administration (FDA). 3 March 2023 . Retrieved 6 March 2023.Sildenafil, sold under the brand name Viagra, among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. [4] [8] It is also sometimes used off-label for the treatment of certain symptoms in secondary Raynaud's phenomenon. [9] It is unclear if it is effective for treating sexual dysfunction in females. [8] It can be taken orally (swallowed by mouth), intravenously (injection into a vein), or through the sublingual route (dissolved under the tongue). [8] [10] Onset when taken orally is typically within twenty minutes and lasts for about two hours. [8]