Sleep aid (sedating antihistamine) · ATC R06AA09
Doxylamine
Unisom SleepTabs in the US
The international (INN) name. Pharmacists everywhere recognize it, even when the local brand differs (e.g. Unisom, Donormyl, Dormidina).
Sold for: jet lag and sleep.
Mostly found in nighttime cold remedies such as NyQuil; on its own it is sold as Unisom SleepTabs and store-brand sleep aids. Unisom SleepGels are a different medicine (diphenhydramine).
Nytol (diphenhydramine) is the usual sleep aid. Only licensed in combinations: with vitamin B6 for pregnancy nausea (Xonvea, prescription-only) and in some codeine painkillers.
It is found in nighttime cold remedies such as NyQuil. Unisom in Canada is a different medicine (diphenhydramine). Doxylamine with vitamin B6 is prescription-only, for pregnancy nausea.
Only registered combined with vitamin B6 as Bonjesta, a prescription medicine for pregnancy nausea. There is no doxylamine sleep aid.
Only found combined with other medicines: in Vicks MediNait, a night-time cold remedy sold without a prescription, and with vitamin B6 for pregnancy nausea, on prescription.