<unk>  is a histamine H1-receptor antagonist. It has anticholinergic and antipruritic effects.<unk>  is rapidly absorbed from the gastrointestinal tract and competitively binds to histamine H1 receptor sites in the gastrointestinal tract, uterus, blood vessels, and bronchial muscle. This suppresses the formation of edema and pruritus (caused by histamine). Despite some earlier reports that<unk>  does not cross the blood–brain barrier, several studies have shown high permeability and high binding to protein folds associated with Alzheimer's.<unk>  may also act on histamine H3 receptors, thereby producing adverse effects.<unk>  does also act as FIASMA (functional inhibitor of acid sphingomyelinase).
Astemizole
Sodium azide
Activated charcoal 
Ciltacabtagene autoleucel
Metamizole
Alcaftadine
Sabizabulin
Acetylcysteine