Vidalista 60 Tadalafil is a medicine that can be used to treat erectile dysfunction (ED) in men. The ingredient that makes it active is tadalafil. Vidalista 60mg belongs to the group of drugs called phosphodiesterase-type inhibitors, which open blood arteries to allow blood to flow to the penis more easily when a person is aroused. The suggested dosage for Vidalista 60 is one tablet taken orally with water. Chewing is not necessary; the tablet should be swallowed whole. It can take up to 20 to 30 minutes for Vidalista to start working.