The Health Minister has confirmed that a programme to reduce the number of new cases of HIV in Ireland will start this year.
PrEP is a drug that can be taken preemptively by at-risk groups, like men who have sex with men.
It is currently available on prescription in Ireland.
However, there are concerns the cost of the pills mean some people who would like to take it can't afford to.
HIQA, the health watchdog, has confirmed PrEP is "safe and highly effective".
However, it warned the drug must not be taken by people who aren't aware they are HIV+.
Doctors fear that could lead to people developing resistance to the drug.
A draft report has found that a PrEP programme would be cheaper than the State's current HIV care.
It is estimated to cost €5.4m for the first five years, and stop 173 people becoming infected in that time.
What Is A PrEP Programme?
A PrEP programme involves taking the pills, regular STI monitoring and testing, and advice on safer sex.
The Health Minister, Simon Harris, said the programme "will really help reduce HIV rates".
This report not only confirms that PrEP can help to prevent HIV amongst those who are high risk, it also shows how a PrEP programme could save money".
“Reducing the number of new HIV diagnoses in Ireland is a priority focus for me", Minister Harris said.
The Taoiseach, Leo Varadkar, said:
"The introduction of a PrEP programme, coupled with increased testing and greater awareness will help us to reduce the number of people contracting HIV".
The public is being asked to give feedback on a plan to offer PrEP to at-risk groups here.