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Kava, Kratom and Blue Lotus "Teas": Where to Read

Where to read about kava, kratom and blue lotus drinks sold as teas: this library points to Specialty Topics and shares only the main official safety statements.

Content last updated . This page has not been medically reviewed.

Close-up of kava, kratom and blue lotus "teas": where to read

Safety first. Natural products can cause side effects and interact with medicines. Read herbal tea and extract safety before you use anything on this page.

Short answer: kava, kratom and blue lotus drinks are covered in the Specialty Topics section, not here. This page is a signpost. It gives no information on using these plants and describes no preparation. If you or someone near you has a bad reaction, call Poison Help at 1-800-222-1222 (US) or 911 in an emergency. For other countries see poison help by country.

Why they are sent elsewhere

This library covers ordinary herbal teas and extracts (see what herbal tea is). Kava, kratom and blue lotus drinks have their own safety questions, such as the liver injury and serious adverse events described below, so the dedicated pages are the place to read.
PlantWhat the label may sayWhere to readKey official point we read
Kava (Piper methysticum, name as given by NCCIH)Kava tea, kava drinkNCCIH: various kava products have been linked to rare cases of liver injury, some serious or fatal. [1]
Kratom (Mitragyna speciosa Korth.)Kratom teaFDA: it has warned consumers not to use kratom because of the risk of serious adverse events, including liver toxicity, seizures and substance use disorder. [2][3]
Blue lotusBlue lotus teaNo official statement on blue lotus was found in the sources we read. A 2023 case series of five patients reported altered mental status after blue lotus products, mostly vaped. [4]

Kava: what NCCIH says in brief

NCCIH (US) says kava is used in the Pacific Islands and is sold in the US as a dietary supplement and in some other countries as a drug or herbal medicine. [1] It reports that some liver injury cases involved kava beverages prepared with water, as well as products extracted with alcohol or acetone. [1] NCCIH says kava should not be used with other sedating substances such as benzodiazepines or alcohol, and may carry special risks in pregnancy or breastfeeding. [1] Traditional use is described on the Specialty page, not here, and traditional use is not proof of safety.

Kratom: what FDA says in brief

FDA (US) states that kratom is not lawfully marketed in the US as a drug, a dietary supplement or a food additive in conventional food. [2] It says deaths have rarely been associated with kratom, usually alongside other drugs, and that the contribution of kratom is unclear. [2] We read the page on 2026-10-23; it does not show a year on the text we saw.

Blue lotus: what two published papers say in brief

We did not find an official agency statement on blue lotus, so this section rests on two peer-reviewed papers (we read the abstracts). A 2023 case series in Military Medicine described five active duty patients who came to an emergency department with altered mental status after using blue lotus (Nymphaea caerulea) products: four after vaping and one after making an infused beverage. They had sedation and perceptual disturbances and were managed with supportive care. [4] The authors note that blue lotus is sold as dried plant material, teas and extracts for electronic cigarettes, and that some such substances are not picked up by standard urine drug screens. [4] A 2023 laboratory analysis in Molecules tested six authentic blue lotus extracts and eleven commercial products by gas chromatography-mass spectrometry. It reported that apomorphine and nuciferine, named as responsible for the psychoactive effects, were virtually absent from the authentic extracts, and that safety data on the plant and its extracts are limited. [5] Its reassuring statement concerns diluted blue lotus concrete or absolute used topically as a fragrance ingredient; it says nothing about drinking blue lotus. [5] A small case series cannot show how common problems are, and a lab analysis does not show what happens in people. The legal status of blue lotus drinks is unverified here.

Limits

Both statements come from US agencies. How these products are treated in other countries is not described in the sources we read. A label that says "tea" does not tell you the plant, the part used or the strength; see reading an herbal tea or tincture label.
TeaPiper methysticum, Mitragyna speciosa, Nymphaea caerulea

What research found and what to check: Kava, Kratom and Blue Lotus Teas

Findings about drinking the tea itself, kept apart from capsules, extracts and concentrated supplements. Each card says what was studied, in whom, and how strong the evidence is.

Do these teas have proven benefits?

Not enough evidence

Kava has trials of kava extract for anxiety (site kava record) but they used extracts, and none is a trial of the tea. No source read shows tested benefit of kratom or blue lotus tea.

Supplements: Extract only for kava.

Connected topics

Open a group to see how each topic connects and how strong the evidence is.

Body systems (3)
  • Hepatic / Liver SystemDocumented risk

    Same liver-injury warnings for kava and kratom.

  • Liver & DetoxDocumented risk

    Same liver-injury warnings; none of the three is a liver-support tea.

  • Nervous SystemDocumented risk

    Same neurological effects described by FDA and the blue lotus case series.

Body parts (3)
  • LiverDocumented risk

    NCCIH links kava products, including water beverages, to rare serious or fatal liver injury; FDA lists liver toxicity among kratom warnings.

  • BrainDocumented risk

    Sedation and altered mental state are described for kratom (FDA) and blue lotus (case series).

  • Nervous SystemDocumented risk

    Seizures (kratom, FDA), sedation and altered mental state described.

Root causes (1)
  • Kava should not be combined with benzodiazepines or alcohol (NCCIH); kratom deaths usually involved other drugs (FDA).

Documented risks and interactions (8)
  • Kava and liver injury. NCCIH says kava products have been linked to rare cases of liver injury, some serious or fatal. Cases included water-prepared kava beverages as well as alcohol- or acetone-extracted products. Suggested contributors: certain varieties or parts, alcohol with kava, contamination, genetics, large or long-term intake.
  • Kratom: FDA warnings. FDA warns consumers not to use kratom, citing liver toxicity, seizures and substance use disorder. It says kratom is not lawfully marketed in the US as a drug, a dietary supplement or a food additive in conventional food, and that no kratom medicine is approved.
  • Kratom: dependence, withdrawal and newborns. FDA says some people meet criteria for substance use disorder, with cravings, tolerance and withdrawal, and that newborns exposed before birth have shown withdrawal signs.
  • Kratom: deaths, poison center reports and contamination. FDA says rare deaths have been linked to kratom, usually with other drugs, so kratom's own contribution is unclear. It also reports Salmonella and heavy metals in some products. Poison center counts are in the site's kratom record (CDC MMWR 2026), not re-read here.
  • Blue lotus: limited data and reported toxicity. A 2023 case series describes five active-duty patients who came to an emergency department with altered mental state after using blue lotus products (four vaped, one drank an infused beverage); all recovered with supportive care. A 2023 lab analysis found the compounds linked to its effects nearly absent from authentic extracts, and called safety data limited.
  • Sedating medicines, alcohol and these plants. NCCIH says kava should not be used with sedating substances such as benzodiazepines or alcohol. FDA says kratom deaths usually involved other drugs.
  • Pregnancy and breastfeeding. NCCIH says kava may pose special risks in pregnancy or breastfeeding; FDA reports withdrawal signs in newborns exposed to kratom. No source we read covers blue lotus.
  • Caffeine and labels. These are not tea-plant teas, and no source we read gives a caffeine figure for any of them. A label that says 'tea' does not say the plant, part or strength.

Explore all 94 teas

Frequently asked questions

Is kava tea covered in this library?

No. Kava is on the Specialty Topics kava page. NCCIH reports rare but sometimes severe liver injury linked to kava products. [1]

Is kratom tea a legal herbal tea in the US?

FDA says kratom is not lawfully marketed as a drug, dietary supplement or food additive in conventional food in the US. [2]

Is blue lotus tea safe?

Proper evidence not found that it is safe. We found no official statement; a 2023 case series describes five patients with altered mental status after blue lotus products. [4] Safety data on the plant and its extracts are described as limited. [5] See the Specialty Topics page and ask a pharmacist or clinician.

Why are these not in the herbal tea guides?

Their safety questions (liver injury, serious adverse events) are different from those of ordinary herbal teas, so they sit with Specialty Topics. [2][1]

Can these interact with alcohol or sedatives?

NCCIH says kava should not be used with sedating substances such as benzodiazepines or alcohol. [1] For kratom, FDA notes deaths were usually with other drugs. [2]

More details: evidence, limits and cautions

The details behind this page: cautions, limits of the evidence and where sources disagree. Open any note to read it.

Who should ask first
Anyone taking prescription medicines, drinking alcohol, who is pregnant or breastfeeding, or has liver disease should ask a pharmacist or clinician before trying any of these. Do not stop or change a prescribed medicine on your own; ask the prescriber or pharmacist. See how interactions work and liver safety. If you want to report a reaction, see side effects and reporting. Back to herbal tea and extract safety.
References
  1. National Center for Complementary and Integrative Health (NCCIH, US). Kava. Read 2026-10-23.
  2. US Food and Drug Administration. FDA and Kratom. Page text carried no year in what we read. Read 2026-10-23.
  3. GBIF Secretariat. GBIF Backbone Taxonomy, species match API for Symphytum officinale L., Tussilago farfara L., Adenostyles alliariae (Gouan) A.Kern., Mitragyna speciosa Korth., Ilex paraguariensis A.St.-Hil., Senna alexandrina Mill. (all returned ACCEPTED). Read 2026-10-23.
  4. Military Medicine. Toxicity From Blue Lotus (Nymphaea caerulea) After Ingestion or Inhalation: A Case Series. 2023. PubMed 34345890. Read 2026-10-23.
  5. Molecules. Chemical Composition, Market Survey, and Safety Assessment of Blue Lotus (Nymphaea caerulea Savigny) Extracts. 2023. PubMed 37894493. Read 2026-10-23.
Education, not medical advice. This page is for general information. It does not diagnose or treat any condition and is not a substitute for care from a qualified health professional. Natural does not automatically mean safe. Ask a clinician or pharmacist before changing your care, especially if you take medication, are pregnant or breastfeeding, or have a health condition.