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I'm not sure it's an authentic lawsuit or an authentic claim. TDF went off-patent and TAF is on-patent. The reality is that TDF and TAF have the same safety profile: a classic "me too" drug. What Gilead wants to do is create marketing buzz that TDF is unsafe so people will go on TAF (i.e. ask for $1,900 Descovy instead of $60 Truvada). If they make the false claim in a lawsuit, media can report on it.

This is why Gilead is funding studies that find TDF to cause bone and renal problems:


It justifies paying for the branded TAF (Descovy)

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