Tadalista CT 20 is a prescription medication for men with erectile dysfunction. It works by increasing blood flow to the penis. This helps with the initiation and maintenance of male erections. It's in the same class of drugs as phosphodiesterase type 5 inhibitors. Do not take more than one pill of the prescribed medication within 24 hours after the previous dosage to avoid the symptoms of overdosing. Make sure you take the prescription between 30 and 60 minutes before when you want to engage in sexual activity. Tadalista CT 20 should usually be taken orally with a glass of water. The drug should be swallowed whole, do not try to chew or crush it.