From The National Institutions Of Health

Nitrate medicines consist of nitroglycerin, isosorbide, Imdur®, Nitro-Bid®, Nitro-Dur®, Nitrol® cream, Nitrolingual® spray, Nitrostat®, and Transderm Nitro®. Avoid Using this medicine if you also make use of riociguat (Adempas®). Making use of this medication with some of the utilizing may cause a greater risk of some side e

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How quickly does Viagra work?

After taking Viagra, the medication quickly enters your system and starts working after about an hour, but you can take it anywhere from 30 minutes to 4 hours before sexual activity. This means that you’ll want to take it about an hour before sexual activity, but you’ve got a wider window of time for when you can still get a benefit.

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