Tadalafil (Cialis)
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Tadalafil (6R,12aR)-6-(1,3-Benzodioxol-5-yl)-2-methyl-1,2,3,4,6,7,12,12a-octahydropyrazino[2,1:6,1]pyrido[3,4-b]indol-1,4-dione, C22H19N3O4, M 389,40 g/mol

Type: PDE Type 5 Inhibitor

Trade Name: Cialis®


Tadalafil is used for the treatment of erectile dysfunction and pulmonary arterial hypertonia. Half life 17,5 hours. Effects only after sexual stimulation with a duration of approximately 24 to 36 hours.


Do not use together with nirate containing medicines or other NO donatating agents ( p.e. Poppers)!


Effects increased with Cimetidine

Site effects

Headache, indigestion


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Last modification (M-D-Y): 02/08/2019 - IMPRINT - FAQ