Tadarise 20mg is a PDE-5 inhibitor that is used to treat erectile dysfunction. Tadalafil, which is present in Tadarise, relaxes the blood vessels in the penis and improves blood flow to it. It is also used to treat BPH by relaxing the muscles of the prostate and bladder glands. As prescribed by your doctor, take the prescription, Tadarise, as a half or whole tablet, and attempt to take it at least 30 minutes before engaging in sexual activity. Make sure you stay well-hydrated when taking medication. Keep the medication somewhere dry and cool. When using Tadarise, avoid alcohol consumption. Chewing the tablet is not advised. You have two options: swallow the tablet or hold it under your tongue for the medication to resorb.