When a High Court ruled that the drug described as a "game-changer" in the fight against HIV can legally be funded by the NHS a Twitter storm erupted.
NHS England said it had received advice that it does not have the legal power to fund pre-exposure prophylaxis (PrEP), a "highly effective" drug used to prevent HIV from becoming established in the event of transmission, but the High Court ruled in favour of the National AIDS Trust which argued that it did have such power.
Some Twitter users celebrated, whilst others were against the decision - some users said it wasn't the NHS' job to fund the drug because it's the responsibility of individuals to take their own health precautions.
Others made some pretty controversial comments.
When taken consistently, PrEP has been shown to reduce the risk of HIV infection in people who are at high risk by more than 90% - a fact Twitter users were keen to point out.
Users also fought against the homophobia that they saw on their timelines.
Expect the argument to rage on - NHS England have said they will appeal the decision.