I don't know about that drug in specific, but everything else I buy from www.alldaychemist.com works well for me. If you google generic Truvada (PrEP) you'll see the pics of that precise medicine not available yet in the U.S. but widely sold in 3rd world countries.
I brought this subject up before.
https://www.companyofmen.org/threads/55-and-125-30-pills-of-generic-prep-is-it-for-real.112999/