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Supplement

Passiflora incarnata

Climbing plant (Passiflora incarnata) with flavonoids that modulate GABA-A. A mild anxiolytic used mainly for situational anxiety, initial insomnia, and as a substitute for benzodiazepines for procedures.
Category
Scientific evidence
Moderate
Number of findings
4
Sources
Our own summaries · Cited studies
Recommended dose and how to use
250–800 mg/day of standardized extract. At night for insomnia; 30–60 min before the dreaded situation for anticipatory anxiety. An infusion is also available (2 g of dried leaf).

How to take it

250–800 mg/day of standardized extract. At night for insomnia; 30–60 min before the dreaded situation for anticipatory anxiety. An infusion is also available (2 g of dried leaf).

Safety

Very well tolerated. Mild drowsiness at high doses. Caution with sedatives, MAOIs, and anticoagulants. Avoid in pregnancy.

Effect by goal · level of evidence

Situational / preoperative anxiety

improves Moderate RCT (AA)
Like midazolam without the hangover

500 mg of Passiflora 90 min before dental or outpatient surgery: anxiety reduction comparable to oral midazolam without residual sedation or amnesia.

View the study (RCT) →

Generalized anxiety disorder (GAD)

improves (modest) Low-moderate small RCT (A)
Similar to oxazepam

4-week trial of Passiflora extract vs oxazepam: similar efficacy on the HAM-A with less cognitive impairment. Small sample.

View the study (RCT) →

Insomnia

improves (modest) Low-moderate small RCT (A)
Improves subjective quality

Passiflora infusion before bed: improves subjective sleep quality in 7 days vs placebo. Small effect but consistent with a GABAergic profile.

See the study (small RCT) →

Benzodiazepine withdrawal

improves (modest) Low pilot RCT (A)
Adjunct in withdrawal

As an adjunct in discontinuing alprazolam/clonazepam: reduces rebound anxiety symptoms during the first 4 weeks.

See the study (clinical study) →

Information, not medical advice. Scientific evidence reflects the quality of the studies.

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