Vidalista Black 80 is a treatment for erectile dysfunction in men. It includes tadalafil, one of the medicines in the class of phosphodiesterase type 5 inhibitors. Many men find that Vidalista Black 80 improves the onset and maintenance of erections. Often referred to as “the weekend pill,” its effects typically start 30 to 60 minutes after ingestion and last for up to 36 hours. This medicine should be swallowed whole with a glass of water, do not chew or divide it. It can be taken with or without food. Take the medicine with a glass of water and with or without food.