Buclizine hydrochloride (AH-2526, UCB 4445; AH2526;UCB-4445, Buclina, Longifene, Posdel, Vibazine), the hydrochloride salt of buclizine which is used for motion sickness, is a piperazine derivative and a sedating antihistamine with antimuscarinic and moderate sedative action.

Mianserin HCl (formerly ORG GB-94; ORG-GB 94; Depnon, Lantanon, Lerivon, Lumin, Norval, Tolvon), the hydrochloride salt of mianserin which is a psychoactive tetracyclic compound, is a novel and potent antagonist (inverse agonist) of H1 histamine receptor and 5-HT serotonin receptors used for the treatment of depression.

Bavisant dihydrochloride hydrate (also known as JNJ-31001074 dihydrochloride hydrate) is a novel, highly selective, orally bioactive antagonist of the human H3 receptor with a novel mechanism of action which involves wakefulness and cognition.

Hydroxyzine 2HCl (NSC-169188; NSC169188; Arcanax; Neurolax; Orgatrax; Pamoate, Hydroxyzine; Vistaril), the dihydrochloride salt of hydroxyzine, is a potent histamine H1-receptor antagonist and an antihistamine drug used in the treatment of itchiness, anxiety, and nausea.

Decloxizine 2HCl , dihydrochloride salt of Decloxizine (also known as UCB-1402; NSC289116) is a histamine 1 receptor antagonist.

Histamine is an organic nitrogen compound and endogenous hormone involved in local immune responses, as well as regulating physiological functions in the gut and acting as a neurotransmitter for the brain, spinal cord, and uterus.

Diphenhydramine HCl (Dabylen; PM255; PM-255; Debendrin; Difenhydramine), the hydrochloride salt of diphenhydramine, is a 1st-generation histamine H1 receptor antagonist which was approved as an antiemetic for treating various allergic conditions such as rhinitis, urticaria and conjunctivitis.

Pemirolast potassium (formerly TWT 8152; BMY 26517; TWT-8152; BMY-26517; Alegysal and Alamast), the potassium salt of Pemirolast, is a poten and orally bioactive histamine H1 antagonist and mast cell stabilizer with potential antiallergic effects.

Cetirizine 2HCl (P-071; UCB P071; Reactine; Zyrtec; Alerlisin; AC-170; P071), the dihydrochloride salt of cetirizine and a major active metabolite of hydroxyzine, is a 2nd-generation antihistamine used in the treatment of allergies, hay fever, angioedema, and urticarial etc.

Ibipinabant (racemic), also known as (±)-SLV319; BMS-646256; JD-5001, is the racemic mixture of SLV319 and is a novel, potent and selective antagonist/inverse agonist of cannabinoid-1 (CB-1) receptor with an IC50 of 22 nM.