For stuff like beauty products cell cultures and computer models could work.
But for hardcore drugs...not a chance. Hell they can't even work out why/how the drugs work in some cases (e.g. Lithium). And its not just isolated cases: That coffee you (a billion or so others) drink every morning helps protect your liver against scaring. Nobody knows how/why. Thats the level of knowledge available on some of these drugs. And they want to model that? LMAO
What they should be doing is this: Leave animal testing in place but reduced in scale and slot the cell & computer testing in *before* the animal testing.
There is a darker side to this too: Companies can & have been moving away from animal testing for a while. They just use human testing earlier: Get a bunch of volunteers, give them cash, bury them in NDAs & waivers. Problem solved: The testing gets done and the NDAs keep the whole thing under wraps. So instead of animals suffering we've got humans test subjects at increased risk & (possibly) suffering. People
die in these tests. And the animal rights people call that a success.
On the whole though this is definitely a positive development.