Pyrilamine maleate

Research use only, not for human use.

A histamine H1 antagonist. It has mild hypnotic properties and some local anesthetic action and is used for allergies (including skin eruptions) both parenterally and locally.

A histamine H1 antagonist. It has mild hypnotic properties and some local anesthetic action and is used for allergies (including skin eruptions) both parenterally and locally. It is a common ingredient of cold remedies. (In Vitro):Mepyramine maleate is an antagonist of histamine H1 receptor, with Kds of 0.8 nM, 5200 nM and >3000 nM for H1, H2, and H3 receptor, respectively, and a pKd of 9.4 for H1 receptor. Mepyramine binds to the H1 receptor with different Kds in Guinea pig brain (0.8 nM), rat brain (9.1 nM) and DDT1-MF-2 and BC3H1 cell (276 nM). Mepyramine decreases the InsP levels in CHO-gpH1 cells, with log EC50 of -7.94 ± 0.11, and reduces the the maximal response to ATP in CHO-gpH1 cells.(In Vivo):Mepyramine obviously decreases the second phase of nociceptive response via i.p at 10 and 20 mg/kg, but shows no significant effect at 5 mg/kg in rats.

Mepyramine maleate is an antagonist of histamine H1 receptor, with Kds of 0.8 nM, 5200 nM and >3000 nM for H1, H2, and H3 receptor, respectively, and a pKd of 9.4 for H1 receptor. Mepyramine binds to the H1 receptor with different Kds in Guinea pig brain (0.8 nM), rat brain (9.1 nM) and DDT1-MF-2 and BC3H1 cell (276 nM). Mepyramine decreases the InsP levels in CHO-gpH1 cells, with log EC50 of -7.94 ± 0.11, and reduces the the maximal response to ATP in CHO-gpH1 cells.

Mepyramine obviously decreases the second phase of nociceptive response via i.p at 10 and 20 mg/kg, but shows no significant effect at 5 mg/kg in rats.

NSC 3604 | Pyrilamine

GPCR/G Protein

Histamine Receptor

H1 receptor

Other Indications

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59-33-6

401.47

C21H27N3O5

>98% (HPLC)

Soluble in DMSO

CN(C)CCN(CC1=CC=C(C=C1)OC)C2=CC=CC=N2.C(=C\C(=O)O)\C(=O)O

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(-20℃)

With Ice Pack

≥ 2 years