Erectile dysfunction is treated with the drug Tadalista. Tadalafil, an inhibitor of phosphodiesterase type-5, is the active component of this oral medicine. Use the drug at a dosage that is similar to what your physician has prescribed. This medicine is most effective when there is intense sexual excitement. Because the drug lasts for up to 36 hours after it is taken, it is recommended that the tablet be taken at least 30 minutes before having sex. It is not advisable to take Tadalista concurrently with recreational drug usage or nitrate-containing medications since this may result in a substantial decrease in blood pressure.