Cenforce 100 mg contains sildenafil citrate, the same active ingredient as Viagra, and is used to treat erectile dysfunction (ED). For men with a history of stroke, using sildenafil (including Cenforce 100 mg) carries potential risks and must be approached with extreme caution. Stroke History and Sildenafil Risks: Cardiovascular strain: Sildenafil can lower blood pressure by dilating blood vessels. In individuals with a history of stroke, this may pose a serious risk, especially if there are underlying heart or vascular conditions. Drug interactions: It should not be taken with nitrates or certain blood pressure medications, which are common in stroke survivors. Brain perfusion risk: Changes in blood pressure can affect cerebral blood flow, potentially increasing the risk of another stroke or transient ischemic attack (TIA). Underlying conditions: Many stroke survivors have diabetes, hypertension, or heart disease, which also increase the risks associated with ED medications.