Pharmaceutical name: Tadalafil citrate
Tadalafil citrate (Cialis® 20 mg, Apcalis, Taldenaxyl 20)
Tadalafil is an oral drug that is used for treating impotence (the inability to attain or maintain a penile erection). It is in a class of drugs called phosphodiesterase inhibitors that also includes sildenafil (Viagra) and vardenafil (Levitra).
Erection of the penis is caused by the filling of the penis with blood. Filling occurs because the blood vessels that bring blood to the penis increase in size and deliver more blood to the penis, and, at the same time, the blood vessels that take blood away from the penis decrease in size and remove less blood from the penis.
HOW DOES IT WORKS?
For most individuals, the recommended starting dose of Tadalafil is 10 mg per day taken before sexual activity. Depending on the adequacy of the response or side effects, the dose may be increased to 20 mg or decreased to 5 mg a day. The effect of Tadalafil may last up to 36 hours. Individuals who are taking medications that increase the blood levels of Tadalafil should not exceed a total dose of 10 mg in 72 hours (See drug interactions).
Tadalafil may be taken with or without food since food does not affect its absorption from the intestine.
The breakdown and elimination of tadalafil from the body may be decreased by erythromycin, ketoconazole (Nizoral), itraconazole (Sporanox), indinavir (Crixivan) and ritonavir (Norvir). Therefore, these drugs may increase the levels of tadalafil in the blood. If these drugs are being used at the same time as tadalafil, the dose of Taldenaxyl 20 should be reduced in order to avoid side effects from high levels of Tadalafil.