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Reference product


Polymorphic form

Form A (form I)

Therapeutic Area

Genito-urinary system & sex hormones



EU DMF readiness

US DMF readiness



Other documentation

Japanese DMF
Chinese DMF
Brazilian DMF

Drug description:

Tadalafil is used in a treatment of erectile dysfunction in adult males. In order for tadalafil to be effective, sexual stimulation is required.
Tadalafil is not indicated for use by women. 
It is formulated as film coated tablets for an oral route of administration.

Mechanism of action:

Tadalafil is a selective, reversible inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5). When sexual stimulation causes the local release of nitric oxide, inhibition of PDE5 by tadalafil produces increased levels of cGMP in the corpus cavernosum. This results in smooth muscle relaxation and inflow of blood into the penile tissues, thereby producing an erection. Tadalafil has no effect in the absence of sexual stimulation.


Products protected by valid patents are not offered for commercial sale in countries where the sale of such products constitutes patent infringement but are offered solely for uses reasonably related to the development and submission of information under a law regulating the manufacture, use or sale of drugs. It is within the buyer’s responsibility and liability to check the patent situation of the product in the imported market(s).