None of the drugs mentioned in this thread are still under patent. The only relevant current patent is on “minus pseudoephedrine,” but that never reached market. Also, I think you’re confusing (ephedrine, pseudoephedrine) with (pseudoephedrine, phenylephrine). (ETA: and phenylephrine isn’t under patent, either)
None of the drugs mentioned in this thread are still under patent. The only relevant current patent is on “minus pseudoephedrine,” but that never reached market. Also, I think you’re confusing (ephedrine, pseudoephedrine) with (pseudoephedrine, phenylephrine). (ETA: and phenylephrine isn’t under patent, either)