> This is already available via an injection every two months and is typically used in populations that can't be expected to take a pill every day (drug addicts, etc.).

That is a pretty bold parenthetical statement. Not only is it not true that "drug addicts" can't be expected to take a pill every day, but neither cabotegravir nor lenacapavir are tested or approved for HIV acquired through non-sexual means, which makes them a poor choice for PrEP for "drug addicts" compared to oral forms, which are effective against all forms of HIV transmission.

Source: former counselor and educator for HIV and substance use