Doxylamine succinate salt

Empirical Formula (Hill Notation):
C17H22N2O · C4H6O4
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Quality Level


Sanofi Aventis

SMILES string




InChI key


Gene Information

human ... HRH1(3269)

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General description

Doxylamine belongs to the ethanolaime class of antihistamines and is metabolized by the liver into N-demethyl doxylamine and N,N-didemethyl doxylamine. It is generally available as an over the counter (OTC) drug for allergy and cold symptoms.


Doxylamine succinate salt has been used as a therapeutic drug to check developmental toxicity.
Doxylamine succinate salt has been used to study the effects of non-teratogenic exposures on morphology and gene expression in human embryonic stem cell aggregates (HESCA)-CSR, under low concentration of retinoic acid in CS medium.


5, 50 g in glass bottle

Biochem/physiol Actions

H1 histamine receptor antagonist; hypnotic.
Doxylamine suppresses histamine at the H1 receptor. It is associated with the short term management of insomnia and temporary relief of common cold symptoms. On the other hand, doxylamine intoxication is linked with rhabdomyolysis and secondary acute renal failure.
Studies in mice show that doxylamine induces liver microsomal cytochrome P450 and other enzymes involved in thyroxine (T4) metabolism. In combination with pyridoxine hydrochloride, this drug is used to treat morning sickness.

Features and Benefits

This compound is also offered as part of Sigma′s Library of Pharmacologically Active Compounds (LOPAC®1280), a biologically annotated collection of high-quality, ready-to-screen compounds. Click here to learn more.

Legal Information

LOPAC is a registered trademark of Sigma-Aldrich Co. LLC


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Hazard Statements

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Certificate of Analysis
Certificate of Origin
Husnain Syed et al.
BMJ case reports, 2009, doi:10-doi:10 (2009-01-01)
The present report highlights the possible adverse effects of doxylamine, a common over the counter sleep aid. Doxylamine is an antihistamine that at toxic doses can cause anticholinergic effects, including seizures, rhabdomyolysis and death. The following case describes a patient...
D V Gauvin et al.
European journal of pharmacology, 294(1), 281-288 (1995-12-27)
Rats were trained to discriminate between 10 mg/kg cocaine and saline injections under a fixed ratio 10 schedule of food-motivated lever press responding. Once stimulus control was achieved, reinforced test sessions were conducted to assess the degree of generalization of...
L J Brandes et al.
Journal of the National Cancer Institute, 86(10), 770-775 (1994-05-18)
Present studies of drug-induced tumor growth promotion have evolved from earlier investigations into the mechanism of action of N,N-diethyl-2-[4-(phenylmethyl)phenoxy[ethanamine.HCl, a tamoxifen derivative which potently inhibits lymphocyte mitogenesis in vitro and stimulates tumor growth in vivo. It is thought that potency...
Development and validation of method for simultaneous estimation of pyridoxine hydrochloride and doxylamine succinate in tablet dosage form by first order derivative spectroscopy.
Nataraj KS
International Journal of Pharmacy and Pharmaceutical Sciences, 5 (2013)
L G Roberts et al.
Toxicology and applied pharmacology, 97(1), 134-140 (1989-01-01)
The intracellular pH of the early postimplantation rodent embryo (pHi) is alkaline with respect to the corresponding plasma of the pregnant dam. This transplacental pH gradient is of considerable importance in the accumulation of teratogenic weak acids by the embryo....

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