It’s pretty much common knowledge about the pharma industry. But here’s a decent Wikipedia page:
High-income countries have had issues involving expensive patented antiretroviral drugs; for example, in 2016 the TDF/FTV/EFV treatment was approximately $30,000 per patient per year in the US, whereas the generic medication only costed $100 per patient per year
Most drug prices are largely driven by patents, and ARVs were as well.
Where do you get the claim about ARVs?
It’s pretty much common knowledge about the pharma industry. But here’s a decent Wikipedia page:
https://en.m.wikipedia.org/wiki/Cost_of_HIV_treatment
The patents all expired by 2016, so this contradicts your claim.