If a man takes viagra, what happens to his erection after climax?

Not sure about viagra specifically, but my husband sometimes has his erection persist after ejaculation so I could answer those questions. It's still incredibly sensitive after orgasm, and usually can't be touched (though we're working on building up his tolerance to it!) but after a couple of minutes of just keeping it warm he can keep going.

How hard does it actually make you? : r/Sildenafil - Reddit

VIAGRA | Sildenafil Citrate - is used to treat male sexual function problems ( Erectile Dysfunction or Impotence ). Sildenafil also boost a chemical in your body called nitric oxide. This action encourages the muscles in your penis to relax. Relaxed muscles allow blood to flow freely so that when you're aroused, you can get an erection.

Has viagra helped anyone overcome Performance anxiety and ED?

Arousal and erections are a mental and physical process. Let go and find your arousal and go for it. If it is slow to respond, give it time, do more foreplay. If you think about it the whole time it'll never work. If it does work and you cum fast or don't cum at all, that's fine too. Your goal was to get an erection, keep it, and have sex.