antihistamine drug

Fexofenadine (Carboxyterfenadine), an antihistamine pharmaceutical drug, is used to treat allergy symptoms, such as nasal congestion, hay fever, and urticaria. Compared to first-generation antihistamines, Fexofenadine is less able to pass the blood-brain barrier and cause sedation.

Diphenhydramine (Syntedril), a first-generation antihistamine possessing antiemetic, antitussive, anticholinergic, and sedative properties, is mainly used in the treatment of allergies. Diphenhydramine is also used in the management of drug-induced parkinsonism and other extrapyramidal symptoms.

Astemizole (Laridal) is a synthetic piperidinyl-benzimidazol derivative with antiallergic properties, acts as a reversible competitive inhibitor of histamine H1 receptors, with less anticholinergic effects compared to related agents. It is a long-acting, non-sedative antihistaminic used in the treatment of seasonal allergic rhinitis, asthma, allergic conjunctivitis, and chronic idiopathic urticaria.

Piperoxan hydrochloride (Benodaine hydrochloride) is an α2 adrenoceptor antagonist. Piperoxan (benodaine) is a drug which was the very first antihistamine to be discovered.

Oxetorone fumarate is a serotonin antagonist, antihistamine, and alpha-blocker. It was used as an antimigraine drug.

Talastine is an antihistamine drug.

Fenethazine is an effective antihistamine used as an antiallergic drug.

Phenindamine Tartrate is an antihistamine and anticholinergic drug closely related to cyproheptadine. It is used to treat symptoms of the common cold and allergies, such as sneezing, itching, rashes, and hives.

Thonzylamine (neohetramine) is an antihistamine and anticholinergic drug. It is available as combination products with Clofedanol or Phenylephrine for temporary relief of symptoms of common cold, hay fever (allergic rhinitis) or other upper respiratory allergies.

Latrepirdine dihydrochloride (Dimebolin dihydrochloride) is an orally active, and neuroactive antagonist of multiple drug targets, including histamine receptors, GluR, and 5-HT receptors, used as an antihistamine drug.

Cinnarizine clofibrate is a calcium channel protein inhibitor as well as an antihistamine channel blocker. The compound is a drug derivative of piperazine. Cinnarizine is used for the control of vomiting due to motion sickness. It acts by interfering with the signal transmission between vestibular apparatus of the inner ear and the vomiting centre of the hypothalamus

Thenalidine is an antihistamine with anticholinergic properties used as an antipruritic drug. It was withdrawn from the US, Canadian, and UK markets due to a risk of neutropenia. Thenalidine is an antagonist of the H1-receptor.

Tofenacin (free base) is an antidepressant drug with a tricyclic-like structure. It acts as a serotonin-norepinephrine reuptake inhibitor, and based on its close relation to orphenadrine, may also possess anticholinergic and antihistamine properties. Tofenacin is also the major active metabolite of orphenadrine and likely plays a role in its beneficial effects against depressive symptoms seen in Parkinson's disease patients.

Tofenacin hydrochloride is an antidepressant drug with a tricyclic-like structure. It acts as a serotonin-norepinephrine reuptake inhibitor, and based on its close relation to orphenadrine, may also possess anticholinergic and antihistamine properties. Tofenacin is also the major active metabolite of orphenadrine and likely plays a role in its beneficial effects against depressive symptoms seen in Parkinson's disease patients.