Doxylamine is a first-generation antihistamine used as a short-term sedative and hypnotic (sleep aid) or in combination formulations to provide night-time allergy and cold relief. It provides a calmative effect in preparations containing the analgesics paracetamol (acetaminophen) and codeine. It is prescribed in combination with vitamin B6 (pyridoxine) to prevent morning sickness in pregnant women. Its fetal safety rating is "A" (no evidence of risk).
It was first described...
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