This isn’t surprising to me, the granddaddy to all AP drugs chlorpromazine (aka Thorazine) has antihistamine properties.
200mg of famotidine a day is a large dose - its also sold OTC as Pepcid. Recently it was tricky to find Pepcid as some other drug had been removed from the market and a lot of people were switching to famotidine.
Ha! I thought that name was familiar! Just bought some yesterday for my dog who has pancreatitis.
Interesting too the gut connection, many psychoactive drugs also affect the gut.
Has anyone tried Pepcid for their loved ones ? is it safe ? Does it really help ?