Tadalafil, an ingredient in Tadoras, is a member of the class of medications known as phosphodiesterase type 5 (PDE 5) inhibitors.  It facilitates blood vessel relaxation, increasing blood flow to the penis.  Additionally, pulmonary arterial hypertension (PAH) is treated with it.

When taking Tadoras, stay away from alcohol and grapefruit juice as these substances may cause unfavorable side effects.  If you have any liver, kidney, or cardiac issues, let your doctor know before using Tadora.  Additionally, you need to let your doctor know if you have any penile deformities or if you have had any or all of your prostate gland surgically removed.