Prep - What Is It & How Does It Work?

evolution

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My understanding - Pre Exposure Prophylactic
Once the medicine is fully absorbed into your system, it prevents HIVirus from replicating in your system.

So you can get HIV, but it cannot replicate & dies off.
It does not prevent transmission, but given the chance to die off, you don't have the HIV to transmit.
I suppose you could 'catch' HIV in the morning & pass it off to someone else later on while the virus is still viable in your system.

That's my understanding, but I am by no means medically trained. I will also ad it's pretty easy to find a way to be on it for free. There are all sorts of ads on mens sites & Planned Parenthood is well versed in it.

and of course - it does not protect against all the other STD's/STI's.
Anyone who tells you they are on PrEP, so no condom needed is just dangerous IMO.