Alcaftadine is a high affinity ligand for the H1 receptor, with a pKi (8.5) that is comparable with that of other H1 antihistamines. Alcaftadine is also an antagonist for H2 and H4 receptors with no affinity for the H3 receptor.
|Body Surface Area (m2)||0.007||0.025||0.15||0.05||0.02||0.5|
|Animal A (mg/kg) = Animal B (mg/kg) multiplied by||Animal B Km|
|Animal A Km|
For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.
|Solubility||28 mg/mL in DMSO|
Update and clinical utility of alcaftadine ophthalmic solution 0.25% in the treatment of allergic conjunctivitis.
Chigbu DI, et al. Clin Ophthalmol. 2015 Jul 8;9:1215-25. PMID: 26185412.
|Related Histamine Receptor Products|
Emedastine Difumarate is a second generation, selective histamine H1 receptor antagonist with anti-allergic activity.
Fexofenadine is a nonsedating antihistamine drug which is indicated for treatment of seasonal allergic rhinitis.
|Roxatidine Acetate HCl
Roxatidine Acetate HCl is a specific and competitive histamin H2-receptor antagonist, with IC50 of 3.2 μM, inhibits gastric acid secretion and ulcer formation.
Ranitidine is a histamine H2-receptor antagonist, used to treat stomach or intestinal ulcers.
Mizolastine is a histamine H1-receptor antagonist with IC50 of 47 nM used in the treatment of hay fever (seasonal allergic rhinitis), hives and other allergic reactions.
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