[gmnash]

It's impossible to be an expert in every field, particularly those as complicated as medicine. Furthermore, you don't have to rely on authority, I linked to an RCT showing it was ineffective.

"Not particularly profitable", which is speculative, is still profitable. I highly doubt any one at Merck is actively working against selling a drug they already manufacture at a profit, but feel free to provide evidence otherwise.

[isoskeles]

Can you explain how the RCT is more useful than the meta-analysis that was posted as the OP?