Suan Zao Ren (Sour Jujube Seed, Zizyphus - Raw Herb Shown)

Chinese Herb Actions

Chinese Herb Dosage

• What is the typical dosage of Suan Zao Ren?

  9–18 g in decoction; 1.5–3 g as a powder taken before bed for sleeplessness. The seeds are crushed (and usually dry-fried); in the classic formula Suan Zao Ren Tang they are decocted first.

  Source: owner’s Five Branches notes; standard materia medica ranges. Reference only — not a prescription.

Chinese Herb Contraindications & Cautions

• Are there cautions or contraindications for Suan Zao Ren?

  Suan Zao Ren is mild and generally very well tolerated, with few side effects. It is traditionally used with caution in severe diarrhea and in excess-heat patterns, where its enriching, astringing nature is not suited to active internal excess.

  Source: owner’s Five Branches notes (Calm Spirit cautions).

Chinese Herb Toxicity & Overdose

• Low. A pharmacological and toxicological review regards Ziziphi Spinosae Semen as a very safe substance with very few toxic reactions in dietary or clinical use; reported LD50 values are high (e.g. 14.33 g/kg by intraperitoneal injection in mice), and genetic-toxicity assays (Ames, micronucleus) were negative.

  Source: PMC 7368963 (PMID 32695210; review of Ziziphi Spinosae Semen). No toxicity signal at therapeutic doses.

Herb-Drug Interactions

• No well-established clinical herb–drug interactions are documented. Given the sedative and hypnotic activity seen in laboratory research (via GABAergic and serotonergic pathways), additive sedation with CNS depressants — benzodiazepines, alcohol, and sedative-hypnotics — is theoretically possible, so practitioner caution is reasonable. (Flagged for practitioner confirmation — absence of documented interactions is not proof of safety.)

  Source: PMC 5811769 (mechanistic review). Practitioner reference, not a therapeutic claim.

Western / Biomedical Research

Chinese Herb Clinical Studies & Research

Provided as research context — a summary of published biomedical study, not a therapeutic or medical claim.

• Is there modern research on Suan Zao Ren for sleep?

  Yes — among TCM sleep herbs it is one of the better studied, and it carries some human data. A systematic review and meta-analysis of randomized trials (13 high-quality trials, 1,454 participants) found that Suanzaoren-based formulas significantly improved Pittsburgh Sleep Quality Index scores and effectiveness rates versus placebo; results versus diazepam were mixed, but adverse effects were fewer. The active compounds jujuboside A and spinosin act on GABA and serotonin pathways. Limitations include weak allocation concealment, short follow-up, and the difficulty of a convincing herbal placebo.

  Sources: PMC 5811769 (PMID 29479317; systematic review & meta-analysis of RCTs); PubMed 28899507 (review of Ziziphus spinosa chemistry and psychopharmacology). Research context, not a therapeutic claim.

Chinese Herb Notes

• How is Suan Zao Ren different from Bai Zi Ren and Ye Jiao Teng?

  All three calm the Spirit for insomnia, but by different routes. Suan Zao Ren best treats insomnia from Liver-yin and Heart-blood deficiency and also astringes sweat; Bai Zi Ren best treats Heart-blood-deficiency insomnia and moistens the intestines; Ye Jiao Teng suits blood-deficiency insomnia and also frees the channels.

  Differentiation from its close neighbors:

  • vs Bai Zi Ren — Bai Zi Ren favors Heart-blood-deficiency insomnia and moistens the intestines; Suan Zao Ren favors Liver-yin deficiency and stops sweating.
  • vs Ye Jiao Teng — the vine of the same plant; suits blood-deficiency insomnia, nourishes the tendons, and stops itching.
  • vs Yuan Zhi — Yuan Zhi calms the Spirit for insomnia from pent-up emotions and also transforms phlegm and aids memory.

  Common combinations:

  • with Fu Ling, Zhi Mu, Chuan Xiong and Gan Cao — the classic Suan Zao Ren Tang, for insomnia from Liver-blood deficiency with deficiency-heat and irritability (Suan Zao Ren decocted first).
  • with Fu Xiao Mai and Wu Wei Zi — to strengthen the sweat-astringing action.

  Note: Sacred Lotus spells the genus “Zizyphus”; botanical and research literature use Ziziphus jujuba var. spinosa (syn. Ziziphus spinosa), Ziziphi Spinosae Semen. These are spelling variants of the same herb, not different substances.

  Source: owner’s Five Branches notes (differentiation set & combinations); botanical nomenclature.