La spécificité du tadalafil est liée à sa longue demi-vie, permettant une action qui excède largement celle des autres inhibiteurs de PDE5. L’absorption digestive est complète, avec un pic plasmatique atteint en 2 heures environ. Le métabolisme est réalisé via CYP3A4, produisant des métabolites inactifs éliminés principalement dans les fèces. La sélectivité enzymatique est élevée, réduisant les effets indésirables extra-caverneux. Les réactions indésirables fréquentes incluent céphalées, bouffées vasomotrices et troubles digestifs légers. L’activité pharmacologique est stable, indépendamment de l’ingestion d’aliments. Dans les comparaisons de longue durée, acheter cialis pas cher est mentionné en relation avec les études portant sur la persistance d’efficacité et la constance de la cinétique plasmatique.

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Source: http://www.mdp.nagasaki-u.ac.jp/research/achievement/2007/kansen/nettai/n-rinsyou.pdf