Gan Song (Chinese Nardostachys Rhizome)

Chinese Herb Actions

Chinese Herb Dosage

• What is the typical dosage of Gan Song?

  3–6 g in decoction — and unusually, our record holds that same range from two independent reference sources, Bensky and Chen & Chen, with no disagreement between them. That is a small dose by the standards of the qi-regulating category, which is appropriate for a strongly aromatic root.

  • Part used — the root and rhizome, dried, as our record’s Latin (Radix Et Rhizoma Nardostachydis) specifies. The material is fibrous and hairy, and intensely fragrant.
  • Aromatic handling — its activity sits in a volatile oil, so like other fragrant medicinals it is not boiled hard or long; adding it late to a decoction is the conventional handling.
  • External preparations — powdered for topical use, or decocted as a soak, per the reference literature.
  • Sourcing note — because the species is internationally trade-regulated and heavily wild-collected (see the conservation note below), the provenance of purchased material is a legitimate question in a way it is not for most herbs at this dose.

  Source: our own dosage record (both ranges as held on file, attributed to Bensky and to Chen & Chen); preparation context per published materia medica consensus, cross-referenced against multiple online sources. Reference only — not a prescription.

Chinese Herb Contraindications & Cautions

• Are there cautions for Gan Song? Is it safe?

  Our record records two contraindications: it is not used in qi deficiency, and it is not used where there is heat in the blood. Both follow from what the herb is — a warm, dispersing, aromatic qi-mover, which consumes qi in someone who has none to spare and adds heat to someone who already has too much.

  • Qi deficiency — contraindicated per our record. Moving herbs given to a depleted patient deplete further.
  • Heat in the blood — contraindicated per our record; the herb is warm.
  • Yin deficiency and dryness — the general category caution for warm aromatic medicinals applies, and volatile-oil-bearing herbs are conventionally used sparingly where fluids are depleted.
  • Pregnancy — no specific prohibition is recorded in our data. As with any warm, dispersing herb, use in pregnancy should be under a qualified practitioner.
  • Cardiovascular medication — see the interactions note below. This herb has been studied for effects on blood pressure and on cardiac ion channels, which makes it one of the few qi-regulating herbs where a genuine pharmacological caution can be stated rather than inferred.
  • Species identification — material sold as “jatamansi” may be a different plant (Valeriana jatamansi), as set out above. This is a quality question, not a toxicity one, but it bears on whether a patient is receiving what was prescribed.

  Source: our own cautions record (qi deficiency; heat in the blood); category cautions per published materia medica consensus, cross-referenced against multiple online sources; identification problem per PMID 31533076. Reference note, not a safety guarantee.

Chinese Herb Toxicity & Overdose

• Is Gan Song toxic?

  No. Our record’s toxicity entry reads “none noted,” the herb is not classed among the toxic materia medica, and the published review of the genus concludes from the available in vivo and in vitro toxicological studies that Nardostachys plants show either no or low toxicity, except at high doses. That last qualification is the review authors’ own and is worth keeping: the finding is dose-dependent, not unconditional.

  No poisoning case reports, organ-toxicity findings or restricted-substance listings on safety grounds were found for this herb. The Appendix II listing described above is a conservation control, not a safety restriction, and should not be read as one. As elsewhere on this site, “none noted” reflects a favourable but limited body of investigation rather than a completed human safety evaluation.

  Source: our own toxicity record (“none noted”); genus toxicology summarised in PMID 34339792, DOI 10.1016/j.jep.2021.114446. Neutral reference facts — not a safety guarantee.

Herb-Drug Interactions

• No clinical herb–drug interaction has been documented for Gan Song, but two lines of evidence make cardiovascular medication a real rather than a theoretical concern. A small randomised, placebo-controlled study reported significant reductions in both systolic and diastolic blood pressure in patients with stage 1 hypertension, some of whom were already taking antihypertensive drugs; and a systematic survey of sixteen animal and cell studies found consistent effects on cardiac ion channels (including the delayed rectifier, inward rectifier, sodium, L-type calcium and transient outward currents).

  On that basis, and as a precaution rather than a documented finding, additive effects with antihypertensive medication and unpredictable interaction with antiarrhythmic medication are the interactions a practitioner should be alert to. Patients taking cardiovascular drugs should tell their prescriber what is in their formula before starting or stopping this herb. (Flagged for practitioner confirmation; reference information only, not a medical claim.)

  Source: blood-pressure findings per PMID 33066862, DOI 10.1016/j.ctim.2020.102532; ion-channel findings per PMID 28797251, PMC 5553922, DOI 10.1186/s12906-017-1910-1. No clinical interaction is claimed or demonstrated.

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 Gan Song (Nardostachys)?

  Yes — a large one, and it points in two directions the Chinese tradition does not emphasise: the heart and the nervous system. It includes one of the very few genuine human trials in our materia medica. Chemically the genus is dominated by sesquiterpenoids of the nardosinane, aristolane and guaiane types, along with coumarins, lignans and phenolics.

  • Human trial — blood pressure — a single-blind, placebo-controlled randomised study in 40 patients aged 35–70 with stage 1 hypertension gave 3 g a day of Nardostachys jatamansi in capsules, or placebo, for four weeks. The treated group’s mean systolic pressure fell from about 144 to 134 mmHg and diastolic from about 95 to 83 mmHg, with no significant change on placebo, and quality-of-life scores improved. Small, single-centre, single-blind and short; the authors themselves call for dose and duration studies. It is nonetheless real clinical data, which most herbs do not have.
  • Cardiac effects — animal and cell — a 2017 systematic survey identified sixteen studies of Nardostachys chinensis in cardiovascular disease: four reported myocardial protection through reduced apoptosis, inflammation and oxidative stress, and twelve reported antiarrhythmic effects through modulation of cardiac ion channels. Preclinical, but coherent, and it explains why the herb appears in Chinese cardiac prescribing.
  • Nervous system — animal and cell — the neurological literature is the largest strand: reported effects on Alzheimer’s-type models in Drosophila and in cell culture from the constituent jatamansinol, protection against amyloid-beta cytotoxicity from an ethanol extract, and behavioural effects in rodent models. All laboratory and animal work.
  • Aroma as a route of administration — a 2025 study in FASEB Journal examined inhaled N. jatamansi essential oil in a sleep-deprivation model of myocardial injury in animals, reporting effects on cardiac neural remodelling associated with the MAOA gene. Interesting given the herb’s traditional identity as a fragrance, but an animal model.
  • Reviews — two comprehensive reviews cover the genus: one on traditional uses, phytochemistry, pharmacology, toxicology and analytical methods, and one focused on N. chinensis, the source species most relevant to the Chinese drug.
  • The caveat that runs through all of it — as noted above, a 2020 review found that many published “jatamansi” studies may have used Valeriana jatamansi rather than Nardostachys, because the two share vernacular names and no marker was used to tell them apart. Individual older studies should be read with that in mind.

  Apart from the small hypertension trial, this is preclinical work. None of it evidences the traditional qi-regulating, appetite-restoring use, and none of it is a therapeutic claim.

  Sources: PMID 33066862, DOI 10.1016/j.ctim.2020.102532 (randomised placebo-controlled study in essential hypertension); PMID 28797251, PMC 5553922, DOI 10.1186/s12906-017-1910-1 (cardioprotective and antiarrhythmic effects, animal and cell studies); PMID 34339792, DOI 10.1016/j.jep.2021.114446 (genus review: phytochemistry, pharmacology, toxicology, analytical methods); PMID 31359527, DOI 10.1002/ptr.6447 (Nardostachys chinensis review); PMID 38042505, DOI 10.1016/j.fitote.2023.105764 (N. jatamansi comprehensive review); PMID 35864434, DOI 10.1007/s12035-022-02964-7 and PMID 35247505, DOI 10.1016/j.neuro.2022.02.011 (jatamansinol in Drosophila Alzheimer’s models); PMID 29398668, DOI 10.1248/bpb.b17-00750 (ethanol extract and amyloid-beta cytotoxicity); PMID 40364704, DOI 10.1096/fj.202500429R (inhaled essential oil, sleep-deprivation myocardial injury); PMID 30848431, PMC 6426942, DOI 10.1007/s13659-019-0200-7 (aristolane-type sesquiterpenoids); PMID 31533076, DOI 10.1016/j.jep.2019.112211 (species-identity caveat). Research context, not a therapeutic claim.

Chinese Herb Notes

• Is Gan Song the spikenard of the Bible and the classical world?

  Yes — this is genuinely that plant. Nardostachys jatamansi, the Himalayan species our Gan Song comes from, is the “nard” or “spikenard” of the ancient Mediterranean: a costly aromatic root carried west out of the Himalaya along the same routes that moved silk and spices. It is one of the very few medicinals that appears independently in the Chinese, Indian, Islamic and classical European traditions under recognisably related names.

  • The written record — a 2020 review in the Journal of Ethnopharmacology notes that the plant’s medicinal properties are documented in the Ayurvedic classics, in the Old Testament, in the Chinese Ben Cao Shi Yi, and in Homer’s Iliad. That is an unusually wide provenance for a single root.
  • The Islamic tradition — under the Unani name sumbul-ut-teeb, it is among the cardiac medicines discussed by Ibn Sina (Avicenna) in his treatise on remedies for the heart, and it is still used in Unani practice.
  • The names line up — Greek nardos and Latin nardus give English “nard” and “spikenard,” and survive in the modern genus name Nardostachys. The CITES species database lists the plant’s English common name as Himalayan spikenard and its Chinese common name as 甘松 — the same two characters our record holds. The identification is not folklore; it is on the official trade record.
  • Two traditions, two emphases — the Indian, Unani and classical uses run to the nervous system, sleep and the heart; the Chinese use recorded on this page is digestive and emotional. Same root, different clinical readings of it.

  Is Gan Song endangered? Is it CITES listed?

  Yes. Nardostachys jatamansi is listed on CITES Appendix II, and it is one of the most heavily and unsustainably wild-collected medicinal plants of the Himalaya. We state this specifically because it is verifiable at source rather than being a general impression.

  • The listing — Appendix II, current, effective 13 September 2007 under the CoP14 annotation covering all parts and derivatives except (a) seeds and pollen and (b) finished products packaged and ready for retail trade. It was first listed in 1997, then under the name Nardostachys grandiflora, with a narrower annotation covering whole and sliced roots. It is also on Annex B of the EU wildlife trade regulations.
  • Why this matters for the Chinese drug specifically — the CITES taxonomy treats Nardostachys chinensis and Nardostachys grandiflora as synonyms of Nardostachys jatamansi, following a nomenclature change adopted at CoP20. So material sold as the Chinese species is the listed species. Our record’s Latin, Radix Et Rhizoma Nardostachydis, does not name a species at all, and so does not distinguish the two — which, on the current taxonomy, makes no practical difference to the trade position.
  • The scale of collection — a 2023 study in PNAS Nexus combined ecological modelling with trader interviews in Nepal and found harvesting well beyond sustainable levels in specific districts. Less than 7% of national trade appeared in official records. CITES-reported exports averaged about 73,500 kg a year, while a single year’s estimated wholesale export of unprocessed air-dried rhizome was around 856,000 kg. The authors describe the species as critically endangered and conclude that neither government records nor CITES trade data can be used to judge sustainability.
  • Restrictions beyond the listing — India maintains a standing prohibition on the commercial export of wild-taken specimens of CITES-listed species, and the EU Scientific Review Group has held a negative opinion on wild-sourced material from Nepal since 1 July 2025. Nepal publishes annual CITES export quotas for the species.

  Read plainly: the retail exemption for finished packaged products means most consumers will never see a CITES document for this herb, and that is exactly why the pressure on wild populations is easy to miss. Cultivated and responsibly sourced material exists; asking a supplier where the root came from is a reasonable thing to do.

  Record field flagged, not altered. Our record marks this herb as neither toxic nor endangered. Given the Appendix II listing and the published assessment of the species as critically endangered, that flag looks wrong, and we are reporting it for owner decision rather than changing it ourselves.

  Is Gan Song related to Song Jie, the pine knot?

  No — and this is a pinyin trap worth naming. The song in Gan Song does mean pine, and our record translates the name as “Sweet Pine,” but that is a description of the smell, not of the botany. Gan Song is a Himalayan herbaceous plant in the valerian alliance; Song Jie, which our materia medica also holds, is Lignum Pini Nodi, the resinous knot of an actual pine tree, bitter and warm, entering the Liver, used for cold-damp joint pain. The two herbs share a syllable and nothing else — not a family, not a category, not a channel, not an indication.

  Is Gan Song the same as Jatamansi, or as valerian?

  Gan Song and Ayurvedic jatamansi are the same plant, but a second, different plant is also sold as “jatamansi” — Valeriana jatamansi — and the two have been confused in the published literature itself. A 2020 review found an uncanny resemblance between the reported phytochemical profiles and activities of Nardostachys jatamansi and Valeriana jatamansi, and concluded that in a number of studies the samples may simply not have been two different species, since both carry identical vernacular names. The CITES listing has carried an explicit exclusion of Valeriana jatamansi since 1997 for the same reason. This is a live identification problem, and it is the main reason to treat single studies of “jatamansi” with care.

  Do aristolane-type compounds in Gan Song mean it contains aristolochic acid?

  No. “Aristolane” is the name of a sesquiterpene carbon skeleton — a shape — first described from Aristolochia and since found in many unrelated plants including this one. Aristolochic acids are an entirely different class of compound, and they are not reported from Nardostachys. We note this only because the two words look alike in a constituent list; nothing about the shared syllable implies shared toxicity.

  What is Gan Song combined with?

  Gan Song appears in no formula we currently hold, so the pairings below are the classical groupings recorded in the reference literature rather than links from our own formula data:

  • With Mu Xiang and Sha Ren — aromatic qi-movers for epigastric and abdominal distension with poor appetite; both are in our materia medica.
  • With Chen Pi and Hou Po — for fullness and distension where dampness is obstructing the middle.
  • With Xiang Fu — where the stagnation is clearly driven by emotional constraint, which is this herb’s particular signature.

  (Traditional combination context, not treatment advice.)

  Source: our own herb records for Gan Song and Song Jie (Latin names, categories, natures, channels, translations, the endangered flag and the absence of formula links); CITES Appendix II listing, annotations, synonymy, EU Annex B status, Nepal quotas, the India export prohibition and the EU Scientific Review Group opinion per the CITES/UNEP-WCMC Species+ record for Nardostachys jatamansi; ancient-literature provenance and the Valeriana jatamansi confusion per PMID 31533076, DOI 10.1016/j.jep.2019.112211; Unani use and Ibn Sina attribution per PMID 33066862, DOI 10.1016/j.ctim.2020.102532; trade volumes and critically endangered status per PMID 37954162, PMC 10635652, DOI 10.1093/pnasnexus/pgad328; aristolane-type sesquiterpenoids of N. chinensis per PMID 30848431, PMC 6426942, DOI 10.1007/s13659-019-0200-7; combinations per published materia medica consensus, cross-referenced against multiple online sources.