SupplementTraditional useSleep

California poppy (Eschscholzia californica)

EMA-monograph European herbal sedative, mild non-opioid alkaloids, traditionally used for mild anxiety and sleep complaints.

Why

California poppy (Eschscholzia californica) holds an EMA HMPC Traditional Use monograph for temporary relief of mild symptoms of mental stress and to aid sleep. Despite its name and despite being a poppy, it does not contain opium alkaloids. Its profile is californidine and eschscholtzine, with mild GABAergic action. Modern clinical evidence is limited; the regulatory anchor is the traditional-use registration.

How it works

Aporphine alkaloids (californidine, eschscholtzine) and pavinanes show GABA-A receptor modulation in preclinical models. No opioid receptor activity, distinct from Papaver somniferum despite the family relationship.

Expected onset · Acute calming effect within hours; sleep-onset effect typically over 1–2 weeks

How to take

Dosage

Dried herb infusion: 1–2 g in 150 ml water, up to three times daily. Standardised extract per product label.

Timing

Evening for sleep; daytime doses spread for restlessness

On the label

Eschscholzia californica, distinct from opium poppy (Papaver somniferum). EMA-registered traditional herbal medicinal products available in some EU markets.

Ideal for

Adults with mild sleep-onset difficulty or daytime restlessness who prefer European-tradition herbal options.

Safety

Sedative. Caution with alcohol, benzodiazepines, opiates and other CNS depressants. Avoid in pregnancy and breastfeeding. Limit duration to 2 weeks without medical review. Allergic reactions in those sensitive to Papaveraceae.

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Evidence

At a glance

EMA classifies California poppy at Traditional Use for mild stress and sleep aid. Traditional-use registration only, no Cochrane review, no Well-Established Use monograph, no EFSA-authorised claim, and no major-journal RCT supports a specific therapeutic effect. Inclusion here reflects the documented tradition; modern clinical evidence is limited.

Limitations

Traditional-use registration only, no Cochrane review, no Well-Established Use monograph, no EFSA-authorised claim, and no major-journal RCT supports a specific therapeutic effect. Inclusion here reflects the documented tradition; modern clinical evidence is limited.

Where to get it

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