How Does PrEP Work?

What drugs are actually in PrEP?

PrEP or Truvada is a combination of two drugs, emtricitabine and tenofovir. Both of these drugs work in a way that blocks the ability for HIV to replicate within the cell. The way that they work is it’s almost like putting in a broken cartridge into a photocopier, and it means that every time that HIV tries to use the body’s mechanism to make a copy of itself, it falters and is not able to progress. This means that HIV is stuck within the cell and the body’s immune system will come along, recognise that something’s happening within that cell and kill it.