With medications like Cenforce 150mg (Sildenafil Citrate) available online, many men can get separate supplies for their erections. Many people of different ages struggle with erectile dysfunction on a regular basis. It also triggers a number of additional stress-related conditions, including A drug in the PDE5 (phosphodiesterase-5) inhibitor class that chemically resembles Viagra. It relaxes the muscles and blood vessels to increase blood flow to the penis and keep a person sexually aroused.