Will phosphodiesterase inhibitors work right away?

Will phosphodiesterase inhibitors work right away?

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Well, it depends on which drugs we're using. Phosphodiesterase inhibitors may work very quickly; as soon as fifteen or so minutes after taking the tablet for Viagra and for Levitra. However, it could take as long as two hours for the onset of activity with the drug Cialis. Other major differences include the duration of activity. So, for Levitra and Viagra the duration of activity may be as long as five or six hours, whereas with Cialis, although it takes longer to sort of kick in and start working, it can last up to thirty-six hours in many individuals.