We know that drugs with the 5-ht2b agonist effect have been linked with fibrosis risk. Which of the serotonin antagonists are safe to use for long term in this regard? I have read that cyproheptadine, pizotifen, lisuride, metergoline, ritanserin, ketanserin are safe. Any more?
I thought mirtazapine blocks all the 5-ht2 receptors; why does Ray Peat think it has been associated with fibrosis risk?