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Betel Nut Drug Interactions, Uses, Effectiveness, Safety & More

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Betel Nut Drug Interactions: The Bottom Line

From the HelloPharmacist Editorial Team · Updated July 2026

Based on the available evidence, Betel Nut drug interactions carry a moderate overall risk for most people, since every documented interaction falls into the moderate category rather than the major or minor range. None of the listed interactions are rated major, but all are rated moderate, and most rest on lab, animal, or limited human reports rather than strong human studies.

Interactions deserving the most attention

The best-supported concerns involve medications that act on the body's acetylcholine system. Betel nut may block the enzyme that breaks down this chemical messenger, so it can work against anticholinergic drugs and, in one case series, was linked to severe tremor and stiffness in people on such treatment. It may also add to the effects of cholinergic drugs like donepezil, raising the chance of side effects. A single case report also tied betel nut to severe mouth and mucous membrane sores in a woman receiving doxorubicin for cancer.

What the rest of the list means

The long list of interacting medications does not mean every combination is harmful. Many entries are theoretical, based on how betel nut might affect enzymes or chemical messengers the body uses. In fact, one MAOI, moclobemide, was used with apparent safety alongside betel nut in a small trial, even though animal research predicted a problem.

Check your medications against Betel Nut

Based on HelloPharmacist’s Betel Nut interaction data and reviewed under our editorial standards.

Interaction report

Drugs that interact with Betel Nut

229 medications have a known interaction with Betel Nut, graded by severity. Select any drug for the full evidence-based detail.

2,830 drugs
AcepromazineAtravet› Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound› Acetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual› Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief› Acetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex› Acetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu› Acetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu› Acetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief› Acetaminophen, Chlorpheniramine, Dextromethorphan, PseudoephedrineChildren's Tylenol Cold Plus Cough, Tylenol Cold Ex Strength› Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, SalicylamideRhinogesic GG› Acetaminophen, Chlorpheniramine, PhenylephrineAlka-Seltzer PLUS, Histex SR, Protid› Acetaminophen, Chlorpheniramine, Phenylephrine, SalicylamideRhinogesic, Rhinogesic JR› Acetaminophen, Chlorpheniramine, PhenylpropanolamineAlumadrine, Conex, Sinadrin Max Strength, Sinulin› Acetaminophen, Chlorpheniramine, Phenylpropanolamine, OpiumHista-Derfule› Acetaminophen, Chlorpheniramine, Phenylpropanolamine, PhenyltoloxamineNorel Plus› Acetaminophen, Chlorpheniramine, PseudoephedrineAlka-Seltzer PLUS Liquid Gels, Children's Tylenol Cold, Codimal, Comtrex, Extra Strength Tylenol Allergy Sinus, Lorsin +3 more› Acetaminophen, Codeine, DoxylamineMersyndol› Acetaminophen, Dextromethorphan, Doxylamine, PseudoephedrineVicks NyQuil› Acetaminophen, Dextromethorphan, Phenylpropanolamine, PyrilamineTheracaps› Acetaminophen, DiphenhydramineTylenol PM, Tylenol PM Ex Strength› Acetaminophen, Diphenhydramine, PseudoephedrineChildren's Tylenol Allergy, Cold Control, Contac Night Allergy Relief› Acetaminophen, Doxylamine, PseudoephedrineEx Strength Tylenol Sinus Nighttime› Acetaminophen, Pamabrom, PyrilamineMidol Max Strength PMS, Pamprin, Pamprin ES› Acetaminophen, Phenylephrine, ChlorpheniramineSuper Cold Tabs› AcetylcholineMiochol-E› Aclidinium BromideTudorza Pressair› Aclidinium Bromide, Formoterol Fumarate DihydrateDuaklir Pressair› Aerosphere Budesonide, Formoterol Fumarate, GlycopyrrolateBreztri› AmantadineGocovri, Osmolex ER, Symmetrel› Ambenonium ChlorideMytelase›
Read The List Like a Pharmacist

What Severity, Likelihood & Evidence Mean

Severity — How Serious It Can Be

  • Major. Clinically significant; generally best avoided, or used only under direct professional supervision.
  • Moderate. May need monitoring, a dose adjustment, or separating the times you take each one.
  • Minor. Generally not clinically significant, but still worth noting and mentioning to your pharmacist.
  • No known interaction. Checked against our sources with nothing documented — not the same as proven safety.

Likelihood — How Well It’s Documented

  • Likely. Well-controlled human studies have demonstrated the likely existence of this interaction
  • Probable. Interaction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
  • Possible. Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists
  • Unlikely. Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans.

Where This Data Comes From

  • Interaction records are evidence-graded and sourced from the Natural Medicines database (TRC Healthcare), the same reference used by pharmacists and hospitals.
  • Each drug listed above links to the full report for that exact Betel Nut combination — clinical detail, likelihood, evidence level, and citations.
  • Content is reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.
The big picture

The kinds of drugs Betel Nut affects

Every type of medication (drug category) Betel Nut is known to interact with. Open any category for the detail — or search your exact drug in the checker above.

All 4 drug categories Betel Nut interacts with
Anticholinergic DrugsCholinergic DrugsDoxorubicin (adriamycin, Others)Monoamine Oxidase Inhibitors (maois)
Anticholinergic Drugs

In vitro and animal research suggests that betel nut extract can inhibit acetylcholinesterase activity. Additionally, in one case series, adults who were treated with procyclidine, an anticholinergic drug, and neuroleptics for the management of extrapyramidal symptoms (EPS) due to fluphenazine ultimately developed severe EPS, such as tremor and stiffness, thought to be related to betel nut use. Theoretically, concurrent use of anticholinergic drugs and betel nut might decrease the effectiveness of betel nut or the anticholinergic agent.
Some anticholinergic drugs include atropine, benztropine (Cogentin), biperiden (Akineton), procyclidine (Kemadrin), and trihexyphenidyl (Artane). Avoid concomitant use.

Likelihood Probable Evidence D
Cholinergic Drugs

In vitro and animal research suggests that betel nut extract can inhibit acetylcholinesterase activity. Theoretically, concurrent use of betel nut with other cholinergic drugs might have additive effects and increase the risk of cholinergic side effects.
Cholinergic drugs include bethanechol (Urecholine), donepezil (Aricept), echothiophate (Phospholine Iodide), edrophonium (Enlon, Reversol, Tensilon), neostigmine (Prostigmin), physostigmine (Antilirium), pyridostigmine (Mestinon, Regonol), succinylcholine (Anectine, Quelicin), and tacrine (Cognex). Avoid concomitant use.

Likelihood Probable Evidence D
Doxorubicin (Adriamycin, Others)

In one case report, a woman treated with doxorubicin for breast cancer developed severe oral, genital, and anal mucositis that was considered to be probably related to betel nut use. It was hypothesized that chewing betel nut increased the risk of mucositis related to doxorubicin. Theoretically, concomitant use of betel nut with doxorubicin might increase the risk for adverse effects. Until more is known, tell patients treated with doxorubicin to avoid betel nut.

Likelihood Possible Evidence D
Monoamine Oxidase Inhibitors (Maois)

Animal research suggests that betel nut extract can inhibit monoamine oxidase. Theoretically, this may affect serotonin levels, potentially causing additive adverse effects if used with MAOIs. However, moclobemide, an MAOI, has been used with apparent safety to help improve betel nut chewing cessation rates in one small clinical trial.

Likelihood Possible Evidence D
Monograph

Betel Nut: Uses, Safety & Side Effects

The bottom line

Betel nut is the seed of the areca palm and is chewed by millions of people across Asia and the Pacific as a stimulant. It is not a safe supplement: regular use is strongly linked to mouth cancer, addiction, and other serious health problems, so it is best avoided.

Scientific name
Areca catechu
Family
Arecaceae
Part used
Seed (nut) of the areca palm
Common forms
Chewed raw or dried nut, often wrapped in betel leaf with slaked lime ('paan' or 'betel quid'); also sold as cut or powdered nut
People commonly use it for
  • Stimulant or 'pick-me-up'
  • Chewed after meals as a digestive aid
  • Freshening the breath
  • Traditional and social/cultural use
  • Folk treatment for intestinal worms

Popular and traditional uses — not proof it works. See “Uses & effectiveness” below for the evidence.

Safety at a glance
OverallBest avoided

Regular betel nut use is linked to oral cancer, addiction, and other serious harms.

PregnancyLikely Unsafe

When used orally. Betel nut has carcinogenic potential as well as central nervous system (CNS) stimulant and cholinergic properties and might adversel...

Read the full pregnancy detail
BreastfeedingLikely Unsafe

When used orally. Betel nut has carcinogenic potential as well as central nervous system (CNS) stimulant and cholinergic properties and might adversel...

Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center). Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Jump to a section

Overview

Betel nut, also called areca nut, is the seed of the areca palm (Areca catechu). The palm grows widely across tropical parts of Asia, the Pacific Islands, and East Africa.

It is most often chewed, frequently as part of a 'betel quid' or 'paan,' where the nut is wrapped in a betel leaf along with slaked lime and sometimes tobacco, spices, or sweeteners. People chew it to feel alert and stimulated, much like coffee or tobacco. Worldwide, hundreds of millions of people use it, making it one of the most commonly used psychoactive substances.

Despite its long history of cultural and social use, betel nut is now recognized by major health authorities as a serious health hazard, not a beneficial supplement.

How it works

Betel nut contains several active compounds, the most important being arecoline. Arecoline acts on the nervous system in a way similar to nicotine, which is why chewing the nut produces feelings of alertness, warmth, and mild euphoria, along with increased saliva.

The nut also contains tannins and other plant chemicals. When chewed, these substances—especially when combined with slaked lime and tobacco—can damage the lining of the mouth. Laboratory and population studies suggest these compounds can cause changes in mouth tissue that lead to cancer over time. Much of what we know comes from human population studies linking long-term use to disease.

Effectiveness

Does Betel Nut work?

Evidence overview · 2 uses evaluated
2 Insufficient evidence
How to read these evidence grades

Natural Medicines’ 7-point scale. We show each rating’s label word-for-word.

1EffectiveStrong, consistent evidence it works.
2Likely EffectiveGood evidence, though not yet conclusive.
3Possibly EffectiveSome evidence suggests a benefit.
4Possibly IneffectiveSome evidence it may not help.
5Likely IneffectiveFairly strong evidence it doesn’t help.
6IneffectiveStrong evidence it doesn’t work.
7Insufficient Reliable Evidence to RateToo little research to say either way.

For Betel Nut, current evidence isn’t strong enough to rate any specific use. The conditions it has been studied for are listed below.

Also studied for 2 conditions — evidence insufficient to rate
Insufficient Reliable Evidence To Rate Schizophrenia
Rating & evidence shown verbatim from Natural Medicines

Although there is interest in using betel nut for schizophrenia, there is insufficient reliable information available about the effects of betel nut for this condition.

Insufficient Reliable Evidence To Rate Stroke
Rating & evidence shown verbatim from Natural Medicines

Preliminary clinical research suggests that taking an aqueous solution containing betel nut extract 2.125 grams appears to improve speech, strength, and bladder function in stroke patients compared with placebo.

Sources Ref 35368

Source & disclaimer. Effectiveness ratings and evidence summaries are provided by Natural Medicines (Therapeutic Research Center) and shown as licensed. Where Natural Medicines hasn’t rated a use, HelloPharmacist’s pharmacists may add their own reviewed rating and evidence (each such entry is labeled). This is educational information, not medical advice — talk with your pharmacist or doctor before starting, stopping, or changing a supplement.

Safety & precautions

Betel nut is considered unsafe for regular use. The World Health Organization's cancer research agency classifies areca nut as a known human carcinogen. Long-term chewing is strongly linked to oral cancer and to a stiffening, scarring mouth condition called oral submucous fibrosis that can make it hard to open the mouth.

Betel nut is also addictive, and stopping can cause withdrawal-like symptoms. It can affect heart rate, blood sugar, and blood pressure, so people with heart disease, diabetes, asthma, or other chronic conditions should be especially careful—or avoid it entirely.

Pregnancy: Avoid betel nut during pregnancy. Use has been associated with low birth weight and other poor pregnancy outcomes. Breastfeeding: Avoid it while breastfeeding, since its active compounds can reach the baby. Always talk with your pharmacist or doctor before using any betel nut product.

Side effects

Common short-term effects include increased saliva (often stained red), mouth and gum irritation, a feeling of warmth, fast heartbeat, sweating, and red staining of the teeth and mouth.

Serious effects from regular or long-term use include oral cancer, oral submucous fibrosis (stiffening of the mouth), gum disease and tooth damage, and addiction. Some people experience worsening asthma, irregular heartbeat, and effects on blood sugar. Taking a large amount can cause symptoms like dizziness, breathing problems, and serious changes in heart rhythm.

Betel Nut: Reported Adverse Effects

Documented safety reports on Betel Nut from the evidence-graded Natural Medicines (TRC Healthcare) database, shown word-for-word from the licensed record.

Betel nut is generally regarded as unsafe for use. Any benefits of therapy may not outweigh the risk of toxicity. Orally, betel nut use is associated with precancerous lesions and carcinoma in long-term users. Chewing betel nut has also been associated with chest pain, cardiac arrhythmias, heart failure, hypotension, coma, dyspnea and tachypnea, acute myocardial infarction, liver fibrosis, chronic kidney disease, nephrolithiasis, diverticulosis, oral submucous fibrosis, more difficult tracheal intubation, and death. Rarely, chewing betel nut has been reported to cause cholinergic crisis, as well as dizziness, numbness, seizures, difficulty breathing, and coma. Less serious adverse effects of chewing betel nut, either alone or as part of betel quid, have included stained teeth and mouth, tooth wear, periodontitis, gingivitis, increased risk of diabetes, and gastrointestinal issues. Habituation and dependence can also occur in users of betel nut.

  1. Tsai, J. F., Chuang, L. Y., Jeng, J. E., Ho, M. S., Hsieh, M. Y., Lin, Z. Y., and Wang, L. Y. Betel quid chewing as a risk factor for hepatocellular carcinoma: a case-control study. Br J Cancer 3-2-2001;84(5):709-713.
  2. Sheikh, M. Y., Rizvi, I. H., and Ahmed, I. Oesophageal carcinoma caused by betel nut. J Pak.Med Assoc 1992;42(6):145-146.
  3. Chitra, S., Ashok, L., Anand, L., Srinivasan, V., and Jayanthi, V. Risk factors for esophageal cancer in Coimbatore, southern India: a hospital-based case-control study. Indian J Gastroenterol. 2004;23(1):19-21.
  4. Chakrabarti, R. N., Dutta, K., Ghosh, K., and Sikdar, S. Uterine cervical dysplasia with reference to the betel quid chewing habit. Eur J Gynaecol.Oncol 1990;11(1):57-59.
  5. Fendell, L. D. and Smith, J. R. Betel-nut-associated cancer: report of case. J Oral Surg 1970;28(6):455-456.
  6. Chen, G. S. and Chen, C. H. [A statistical analysis of oral squamous cell carcinoma]. Gaoxiong.Yi Xue.Ke.Xue.Za Zhi 1995;11(10):582-588.
  7. van Wyk, C. W., Stander, I., Padayachee, A., and Grobler-Rabie, A. F. The areca nut chewing habit and oral squamous cell carcinoma in South African Indians. A retrospective study. S.Afr.Med J 1993;83(6):425-429.
  8. Akhtar S, Sheikh AA, Qureshi HU. Chewing areca nut, betel quid, oral snuff, cigarette smoking and the risk of oesophageal squamous-cell carcinoma in South Asians: a multicentre case-control study. Eur J Cancer. 2012;48(5):655-61.
  9. Chen YY, Fang WH, Wang CC, et al. Detrimental association between betel nut chewing and colorectal polyps in adult populations. PLoS One 2018;13(10):e0206383.
  10. Wang CP, Chen TC, Hsu WL, et al. Rising incidence of HPV positive oropharyngeal cancer in Taiwan between 1999 and 2014 where betel nut chewing is common. BMC Cancer 2022;22(1):296.
  11. Gupta R, Mariano LC, Nethan ST, et al. Risk Reversal of Oral, Pharyngeal and Oesophageal Cancers after Cessation of Betel Quid Users: A Systematic Review and Meta-Analysis. Ann Glob Health 2022;88(1):5.
  12. Yang J, Wang ZY, Huang L, et al. Do betel quid and areca nut chewing deteriorate prognosis of oral cancer? A systematic review, meta-analysis, and research agenda. Oral Dis 2021;27(6):1366-1375.
  13. Hu Y, Zhong R, Li H, Zou Y. Effects of Betel Quid, Smoking and Alcohol on Oral Cancer Risk: A Case-Control Study in Hunan Province, China. Subst Use Misuse 2020;55(9):1501-1508.
  14. Nelson, B. S. and Heischober, B. Betel nut: a common drug used by naturalized citizens from India, Far East Asia, and the South Pacific Islands. Ann.Emerg.Med 1999;34(2):238-243.
  15. Deng, J. F., Ger, J., Tsai, W. J., Kao, W. F., and Yang, C. C. Acute toxicities of betel nut: rare but probably overlooked events. J Toxicol Clin Toxicol 2001;39(4):355-360.
  16. Huang, Z., Xiao, B., Wang, X., Li, Y., and Deng, H. Betel nut indulgence as a cause of epilepsy. Seizure. 2003;12(6):406-408.
  17. Taylor, R. F., al-Jarad, N., John, L. M., Conroy, D. M., and Barnes, N. C. Betel-nut chewing and asthma. Lancet 5-9-1992;339(8802):1134-1136.
  18. Chu, N. S. Effect of betel chewing on RR interval variation. J Formos.Med Assoc 1995;94(3):106-110.
  19. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  20. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  21. Mannan, N., Boucher, B. J., and Evans, S. J. Increased waist size and weight in relation to consumption of Areca catechu (betel-nut); a risk factor for increased glycaemia in Asians in east London. Br J Nutr 2000;83(3):267-273.
  22. Yin, X. M., Peng, J. Y., and Gao, Y. J. [Clinical study on the relationship between tooth abrasion and the habits of chewing betel nut]. Hunan.Yi.Ke.Da.Xue.Xue.Bao. 2003;28(2):171-173.
  23. Tung, T. H., Chiu, Y. H., Chen, L. S., Wu, H. M., Boucher, B. J., and Chen, T. H. A population-based study of the association between areca nut chewing and type 2 diabetes mellitus in men (Keelung Community-based Integrated Screening programme No. 2). Di
  24. Chang, W. C., Hsiao, C. F., Chang, H. Y., Lan, T. Y., Hsiung, C. A., Shih, Y. T., and Tai, T. Y. Betel nut chewing and other risk factors associated with obesity among Taiwanese male adults. Int J Obes.(Lond) 2006;30(2):359-363.
  25. Yen, A. M., Chiu, Y. H., Chen, L. S., Wu, H. M., Huang, C. C., Boucher, B. J., and Chen, T. H. A population-based study of the association between betel-quid chewing and the metabolic syndrome in men. Am J Clin Nutr 2006;83(5):1153-1160.
  26. Chung, F. M., Chang, D. M., Chen, M. P., Tsai, J. C., Yang, Y. H., Shieh, T. Y., Shin, S. J., Chen, T. H., Tai, T. Y., and Lee, Y. J. Areca nut chewing is associated with metabolic syndrome: role of tumor necrosis factor-alpha, leptin, and white blood ce
  27. Chatrchaiwiwatana, S. Dental caries and periodontitis associated with betel quid chewing: analysis of two data sets. J Med Assoc Thai. 2006;89(7):1004-1011.
  28. Gerreth, K. [Tooth wear in Hindu betel nut chewers]. Przegl.Lek. 2006;63(10):882-886.
  29. Dowse, G. K. Betel-nut chewing and diabetes in Papua New Guinea and elsewhere. Diabetologia 1994;37(10):1062-1064.
  30. Cimolai N and Cimolai T. Severe iron deficiency anemia and gastrointestinal dysfunction associated with ingestion of pan masala. Journal of Dietary Supplements (J DIET SUPPL) 2008;5(3):305-309.
  31. Li DF, Xu ZL, Yao J. A rare cause of esophageal mucosal and submucosal lesions. Rev Esp Enferm Dig 2020;112(2):158.
  32. Talonu, N. T. Observations on betel-nut use, habituation, addiction and carcinogenesis in Papua New Guineans. P.N G.Med J 1989;32(3):195-197.
  33. Pickwell, S. M., Schimelpfening, S., and Palinkas, L. A. 'Betelmania'. Betel quid chewing by Cambodian women in the United States and its potential health effects. West J Med 1994;160(4):326-330.
Reports by condition
Anxiety Psychiatric

Habituation and dependence can occur in users of betel nut. Signs of withdrawal, such as anxiety, despondency, and memory lapses, also occur.

Some research has evaluated medications that may improve betel nut cessation. Preliminary clinical research in males with betel nut dependence shows that taking escitalopram 10 mg or moclobemide 150 mg orally daily for 8 weeks increases the likelihood of cessation by 6.3 and 6.8 times that of placebo, respectively.

  1. Talonu, N. T. Observations on betel-nut use, habituation, addiction and carcinogenesis in Papua New Guineans. P.N G.Med J 1989;32(3):195-197.
  2. Pickwell, S. M., Schimelpfening, S., and Palinkas, L. A. 'Betelmania'. Betel quid chewing by Cambodian women in the United States and its potential health effects. West J Med 1994;160(4):326-330.
  3. Wiesner, D. M. Betel-nut withdrawal. Med J Aust. 4-20-1987;146(8):453.
  4. Hung CC, Lee CH, Ko AM, Lane HY, Lee CP, Ko YC. Effect of antidepressants for cessation therapy in betel-quid use disorder: a randomised, double-blind, placebo-controlled trial. Epidemiol Psychiatr Sci 2020;29:e125.
Arrhythmia Cardiovascular

Chewing betel nut has been associated with short-term chest pain, ventricular arrhythmias, tachycardia or a slight increased heart rate, palpitations, hypotension, and myocardial infarction. Increased systolic blood pressure has occurred in new chewers of betel nut. Although most individuals recovered within 24 hours, there are some cases of death associated with acute myocardial infarction and ventricular fibrillation. Observational research in adults hospitalized with cardiopulmonary symptoms has found that chewing betel nut is associated with premature ventricular contractions and heart failure.

Some, but not all, population research suggests that chewing betel nut increases the risk of cerebrovascular and/or cardiovascular disease. Population research has also found that chewing betel nut is associated with obesity, dyslipidemia, hypertension, and metabolic syndrome. Population research also suggests that these risks increase with longer durations of betel nut use.

  1. Deng, J. F., Ger, J., Tsai, W. J., Kao, W. F., and Yang, C. C. Acute toxicities of betel nut: rare but probably overlooked events. J Toxicol Clin Toxicol 2001;39(4):355-360.
  2. Frewer, L. J. The effect of betel nut on human performance. P N G Med J 1990;33(2):143-145.
  3. Chu, N. S. Cardiovascular responses to betel chewing. J Formos.Med Assoc 1993;92(9):835-837.
  4. Hung, D. Z. and Deng, J. F. Acute myocardial infarction temporally related to betel nut chewing. Vet.Hum.Toxicol. 1998;40(1):25-28.
  5. Chiang, W. T., Yang, C. C., Deng, J. F., and Bullard, M. Cardiac arrhythmia and betel nut chewing--is there a causal effect? Vet.Hum.Toxicol. 1998;40(5):287-289.
  6. Li DF, Xu ZL, Yao J. A rare cause of esophageal mucosal and submucosal lesions. Rev Esp Enferm Dig 2020;112(2):158.
  7. Huang TC, Wu WT, Chen YC, Yang FM, Tsai WC, Lee CH. Betel-Quid Chewing, Heart Failure, and Premature Ventricular Contractions in Patients with Cardiopulmonary Symptoms. Int J Environ Res Public Health 2020;17(20):7472.
  8. Lan, T. Y., Chang, W. C., Tsai, Y. J., Chuang, Y. L., Lin, H. S., and Tai, T. Y. Areca nut chewing and mortality in an elderly cohort study. Am J Epidemiol. 3-15-2007;165(6):677-683.
  9. Guh, J. Y., Chen, H. C., Tsai, J. F., and Chuang, L. Y. Betel-quid use is associated with heart disease in women. Am J Clin Nutr 2007;85(5):1229-1235.
  10. Yen, A. M., Chen, L. S., Chiu, Y. H., Boucher, B. J., and Chen, T. H. A prospective community-population-registry based cohort study of the association between betel-quid chewing and cardiovascular disease in men in Taiwan (KCIS no. 19). Am J Clin Nutr 2
  11. Huang YC, Geng JH, Wu PY, et al. Betel Nut Chewing Increases the Risk of Metabolic Syndrome and Its Components in a Large Taiwanese Population Follow-Up Study Category: Original Investigation. Nutrients 2022;14(5):1018.
Cancer Oncologic

Population research has found that chewing betel nut, either alone or as part of betel quid, increases the risk of cervical dysplasia, colorectal polyps, esophageal cancer, oral cancer, and oropharyngeal cancer. Population research in adults with oropharyngeal or oral cancer also suggests that a history of chewing betel nut and continued betel nut chewing both reduce 5-year overall survival when compared with non-users. A meta-analysis of observational studies also suggests that quitting betel-nut use reduces the risk of developing pharyngeal cancer when compared with continued use.

  1. Tsai, J. F., Chuang, L. Y., Jeng, J. E., Ho, M. S., Hsieh, M. Y., Lin, Z. Y., and Wang, L. Y. Betel quid chewing as a risk factor for hepatocellular carcinoma: a case-control study. Br J Cancer 3-2-2001;84(5):709-713.
  2. Sheikh, M. Y., Rizvi, I. H., and Ahmed, I. Oesophageal carcinoma caused by betel nut. J Pak.Med Assoc 1992;42(6):145-146.
  3. Chitra, S., Ashok, L., Anand, L., Srinivasan, V., and Jayanthi, V. Risk factors for esophageal cancer in Coimbatore, southern India: a hospital-based case-control study. Indian J Gastroenterol. 2004;23(1):19-21.
  4. Chakrabarti, R. N., Dutta, K., Ghosh, K., and Sikdar, S. Uterine cervical dysplasia with reference to the betel quid chewing habit. Eur J Gynaecol.Oncol 1990;11(1):57-59.
  5. Fendell, L. D. and Smith, J. R. Betel-nut-associated cancer: report of case. J Oral Surg 1970;28(6):455-456.
  6. Chen, G. S. and Chen, C. H. [A statistical analysis of oral squamous cell carcinoma]. Gaoxiong.Yi Xue.Ke.Xue.Za Zhi 1995;11(10):582-588.
  7. van Wyk, C. W., Stander, I., Padayachee, A., and Grobler-Rabie, A. F. The areca nut chewing habit and oral squamous cell carcinoma in South African Indians. A retrospective study. S.Afr.Med J 1993;83(6):425-429.
  8. Akhtar S, Sheikh AA, Qureshi HU. Chewing areca nut, betel quid, oral snuff, cigarette smoking and the risk of oesophageal squamous-cell carcinoma in South Asians: a multicentre case-control study. Eur J Cancer. 2012;48(5):655-61.
  9. Chen YY, Fang WH, Wang CC, et al. Detrimental association between betel nut chewing and colorectal polyps in adult populations. PLoS One 2018;13(10):e0206383.
  10. Wang CP, Chen TC, Hsu WL, et al. Rising incidence of HPV positive oropharyngeal cancer in Taiwan between 1999 and 2014 where betel nut chewing is common. BMC Cancer 2022;22(1):296.
  11. Hu Y, Zhong R, Li H, Zou Y. Effects of Betel Quid, Smoking and Alcohol on Oral Cancer Risk: A Case-Control Study in Hunan Province, China. Subst Use Misuse 2020;55(9):1501-1508.
  12. Yang J, Wang ZY, Huang L, et al. Do betel quid and areca nut chewing deteriorate prognosis of oral cancer? A systematic review, meta-analysis, and research agenda. Oral Dis 2021;27(6):1366-1375.
  13. Gupta R, Mariano LC, Nethan ST, et al. Risk Reversal of Oral, Pharyngeal and Oesophageal Cancers after Cessation of Betel Quid Users: A Systematic Review and Meta-Analysis. Ann Glob Health 2022;88(1):5.
Cheilitis Immunologic

In one case report, cheilitis granulomatosa, a painless swelling of the lips, occurred after chewing betel quid. However, the patient was determined to be allergic to betel leaves (Piper betel) and not to betel nut. Betel leaves are not related to betel nut.

  1. Chiu CS, Tsai YL. Cheilitis granulomatosa associated with allergic contact dermatitis to betel quid. Contact Dermatitis. 2008;58(4):246-7.
Diabetes Endocrine

Some population research suggests that chewing betel nut, either alone or as part of betel quid, increases the risk of type 2 diabetes. However, not all research supports this relationship. Also, any increased risk is possibly related to the fact that consuming betel nut is also associated with an increased rate of obesity.

  1. Mannan, N., Boucher, B. J., and Evans, S. J. Increased waist size and weight in relation to consumption of Areca catechu (betel-nut); a risk factor for increased glycaemia in Asians in east London. Br J Nutr 2000;83(3):267-273.
  2. Tung, T. H., Chiu, Y. H., Chen, L. S., Wu, H. M., Boucher, B. J., and Chen, T. H. A population-based study of the association between areca nut chewing and type 2 diabetes mellitus in men (Keelung Community-based Integrated Screening programme No. 2). Di
  3. Chang, W. C., Hsiao, C. F., Chang, H. Y., Lan, T. Y., Hsiung, C. A., Shih, Y. T., and Tai, T. Y. Betel nut chewing and other risk factors associated with obesity among Taiwanese male adults. Int J Obes.(Lond) 2006;30(2):359-363.
  4. Yen, A. M., Chiu, Y. H., Chen, L. S., Wu, H. M., Huang, C. C., Boucher, B. J., and Chen, T. H. A population-based study of the association between betel-quid chewing and the metabolic syndrome in men. Am J Clin Nutr 2006;83(5):1153-1160.
  5. Chung, F. M., Chang, D. M., Chen, M. P., Tsai, J. C., Yang, Y. H., Shieh, T. Y., Shin, S. J., Chen, T. H., Tai, T. Y., and Lee, Y. J. Areca nut chewing is associated with metabolic syndrome: role of tumor necrosis factor-alpha, leptin, and white blood ce
  6. Dowse, G. K. Betel-nut chewing and diabetes in Papua New Guinea and elsewhere. Diabetologia 1994;37(10):1062-1064.
  7. Huang YC, Geng JH, Wu PY, et al. Betel Nut Chewing Increases the Risk of Metabolic Syndrome and Its Components in a Large Taiwanese Population Follow-Up Study Category: Original Investigation. Nutrients 2022;14(5):1018.
Diarrhea Neurologic/CNS
Diarrhea Gastrointestinal

Orally, consuming betel nut may cause vomiting, nausea, stomach pain, and diarrhea. Chewing betel nut causes red-stained mouth, lips, and feces.

Population research in adult males has found that chewing betel nut is associated with 59% to 70% greater odds of having diverticulosis when compared with non-users.

Betel nut chewing can also cause oral submucous fibrosis (OSMF) in susceptible individuals. Chewing betel nut chronically (daily for at least 5 years) is also associated with more difficult tracheal intubations, which is believed to result from OSMF.

In one case report, a 35-year-old female developed sore throat, dysphagia, and heartburn thought to be related to consuming betel nut as part of daily handfuls of pan masala. In another case, a 45-year-old male presented with swallowing obstruction one hour after chewing betel nut. Upon examination, submucosal hematoma and multiple esophageal lesions were observed.

  1. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  2. Deng, J. F., Ger, J., Tsai, W. J., Kao, W. F., and Yang, C. C. Acute toxicities of betel nut: rare but probably overlooked events. J Toxicol Clin Toxicol 2001;39(4):355-360.
  3. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  4. Yin, X. M., Peng, J. Y., and Gao, Y. J. [Clinical study on the relationship between tooth abrasion and the habits of chewing betel nut]. Hunan.Yi.Ke.Da.Xue.Xue.Bao. 2003;28(2):171-173.
  5. Liu YH, Chen WL. Association between Betel Nut and Presence of Diverticulum in Male: A Cross-Sectional Study. Biomed Res Int 2021;2021:6669792.
  6. Cox SC, Walker DM. Oral submucous fibrosis. A review. Aust Dent J 1996;41:294-9.
  7. Gupta PC, Sinor PN, Bhonsle RB, et al. Oral submucous fibrosis in India: a new epidemic? Natl Med J India 1998;11:113-6.
  8. VanWyk CW. Oral submucous fibrosis. The South African experience. Indian J Dent Res 1997;8:39-45.
  9. Yuwanati M, Ramadoss R, Kudo Y, Ramani P, Senthil Murugan M. Prevalence of oral submucous fibrosis among areca nut chewers: A systematic review and meta-analysis. Oral Dis 2022.
  10. Chen SY, Tsai YS, Wu YH, Wang ST, Kang TW, Tseng CA. Betel-Nut Chewing Increases Difficulty in Tracheal Intubation. Asian J Anesthesiol 2020;58(4):138-145.
  11. Cimolai N and Cimolai T. Severe iron deficiency anemia and gastrointestinal dysfunction associated with ingestion of pan masala. Journal of Dietary Supplements (J DIET SUPPL) 2008;5(3):305-309.
  12. Li DF, Xu ZL, Yao J. A rare cause of esophageal mucosal and submucosal lesions. Rev Esp Enferm Dig 2020;112(2):158.
Gingivitis Dental

Chewing betel nut, either alone or as part of betel quid, has been reported to cause tooth wear or abrasion, periodontitis, gingivitis, and red-stained teeth.

Hypercalcemia Renal

A meta-analysis of population research shows that betel nut chewing is associated with 44% greater odds of developing chronic kidney disease when compared with non-users. Population research in adult males has also found that chewing betel nut is associated with 1% to 25% greater odds of developing nephrolithiasis when compared with non-users. Population research suggests that these risks increase in subjects that use higher quantities of betel nut.

Additionally, two patients who chewed large quantities of betel nuts prepared in a paste of calcium carbonate from oyster shells developed milk-alkali syndrome, characterized by hypercalcemia, metabolic alkalosis, and renal insufficiency. The abnormalities resolved after discontinuation of the mixture and intravenous saline. This adverse effect was attributed to the large intake of calcium, 6-9 grams, in the preparation, and not to the use of betel nut.

  1. Wang M, Yu SY, Lv ZT, Yao Y. Betel nut chewing and the risk of chronic kidney disease: evidence from a meta-analysis. Int Urol Nephrol 2018;50(6):1097-1104.
  2. Chang CK, Lee JI, Chang CF, et al. Betel Nut Chewing Is Associated with the Risk of Kidney Stone Disease. J Pers Med 2022;12(2):126.
  3. Wu, K. D., Chuang, R. B., Wu, F. L., Hsu, W. A., Jan, I. S., and Tsai, K. S. The milk-alkali syndrome caused by betelnuts in oyster shell paste. J Toxicol Clin Toxicol 1996;34(6):741-745.
Metabolic syndrome Hepatic

Population research in adults with metabolic syndrome has found that chewing betel nut is associated with 5.5 times greater odds of having liver fibrosis when compared with non-users. However, in adults without metabolic syndrome, chewing betel nut was not associated with liver fibrosis.

  1. Chou YT, Sun ZJ, Shen WC, et al. Cumulative Betel Quid Chewing and the Risk of Significant Liver Fibrosis in Subjects With and Without Metabolic Syndrome. Front Nutr 2022;9:765206.
DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.

Adverse-effects data: Natural Medicines, Therapeutic Research Center

Dosing

There is no safe or established dose of betel nut, and it is not recommended as a supplement. Because of its strong link to cancer and other harms, health authorities advise against using it at all.

If you currently use betel nut and want to stop, or if you have questions about a product that contains it, speak with a pharmacist or doctor. They can help you find safer options and support quitting if needed.

Pregnancy & Breastfeeding

Betel Nut & Pregnancy

Likely Unsafe

When used orally. Betel nut has carcinogenic potential as well as central nervous system (CNS) stimulant and cholinergic properties and might adversely affect pregnancy and nursing infants; avoid using. Neonatal withdrawal has occurred following chronic use by the mother while pregnant.

  1. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  2. Ellenhorn MJ, et al. Ellenhorn's Medical Toxicology: Diagnoses and Treatment of Human Poisoning. 2nd ed. Baltimore, MD: Williams & Wilkins, 1997.
  3. Lopez-Vilchez, M. A., Seidel, V., Farre, M., Garcia-Algar, O., Pichini, S., and Mur, A. Areca-nut abuse and neonatal withdrawal syndrome. Pediatrics 2006;117(1):e129-e131.

Betel Nut & Breastfeeding

Likely Unsafe

When used orally. Betel nut has carcinogenic potential as well as central nervous system (CNS) stimulant and cholinergic properties and might adversely affect pregnancy and nursing infants; avoid using. Neonatal withdrawal has occurred following chronic use by the mother while pregnant.

  1. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  2. Ellenhorn MJ, et al. Ellenhorn's Medical Toxicology: Diagnoses and Treatment of Human Poisoning. 2nd ed. Baltimore, MD: Williams & Wilkins, 1997.
  3. Lopez-Vilchez, M. A., Seidel, V., Farre, M., Garcia-Algar, O., Pichini, S., and Mur, A. Areca-nut abuse and neonatal withdrawal syndrome. Pediatrics 2006;117(1):e129-e131.
DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.

© 2026 Therapeutic Research Center

Pregnancy & lactation ratings: Natural Medicines, Therapeutic Research Center

References & further reading

The 61 references that drive our Betel Nut monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

  1. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  2. Ellenhorn MJ, et al. Ellenhorn's Medical Toxicology: Diagnoses and Treatment of Human Poisoning. 2nd ed. Baltimore, MD: Williams & Wilkins, 1997.
  3. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  4. Cox SC, Walker DM. Oral submucous fibrosis. A review. Aust Dent J 1996;41:294-9. PubMed
  5. Gupta PC, Sinor PN, Bhonsle RB, et al. Oral submucous fibrosis in India: a new epidemic? Natl Med J India 1998;11:113-6.
  6. VanWyk CW. Oral submucous fibrosis. The South African experience. Indian J Dent Res 1997;8:39-45.
  7. Gilani, A. H., Ghayur, M. N., Saify, Z. S., Ahmed, S. P., Choudhary, M. I., and Khalid, A. Presence of cholinomimetic and acetylcholinesterase inhibitory constituents in betel nut. Life Sci 10-1-2004;75(20):2377-2389. PubMed
  8. Lopez-Vilchez, M. A., Seidel, V., Farre, M., Garcia-Algar, O., Pichini, S., and Mur, A. Areca-nut abuse and neonatal withdrawal syndrome. Pediatrics 2006;117(1):e129-e131. PubMed
  9. Nelson, B. S. and Heischober, B. Betel nut: a common drug used by naturalized citizens from India, Far East Asia, and the South Pacific Islands. Ann.Emerg.Med 1999;34(2):238-243. PubMed
  10. Dar, A. and Khatoon, S. Behavioral and biochemical studies of dichloromethane fraction from the Areca catechu nut. Pharmacol Biochem Behav. 1-1-2000;65(1):1-6. PubMed
  11. Mannan, N., Boucher, B. J., and Evans, S. J. Increased waist size and weight in relation to consumption of Areca catechu (betel-nut); a risk factor for increased glycaemia in Asians in east London. Br J Nutr 2000;83(3):267-273.
  12. Tsai, J. F., Chuang, L. Y., Jeng, J. E., Ho, M. S., Hsieh, M. Y., Lin, Z. Y., and Wang, L. Y. Betel quid chewing as a risk factor for hepatocellular carcinoma: a case-control study. Br J Cancer 3-2-2001;84(5):709-713. PubMed
  13. Deng, J. F., Ger, J., Tsai, W. J., Kao, W. F., and Yang, C. C. Acute toxicities of betel nut: rare but probably overlooked events. J Toxicol Clin Toxicol 2001;39(4):355-360. PubMed
  14. Huang, Z., Xiao, B., Wang, X., Li, Y., and Deng, H. Betel nut indulgence as a cause of epilepsy. Seizure. 2003;12(6):406-408. PubMed
  15. Yin, X. M., Peng, J. Y., and Gao, Y. J. [Clinical study on the relationship between tooth abrasion and the habits of chewing betel nut]. Hunan.Yi.Ke.Da.Xue.Xue.Bao. 2003;28(2):171-173.
Keep reading

This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

Pharmacist Counseling Corner

Betel Nut: Common Questions

What is Betel Nut used for, and does it work?
People use Betel Nut for a range of reasons, but according to the Natural Medicines database the current clinical evidence is insufficient to confirm it works for the specific conditions it has been studied for. See the graded list on this page, and talk to your pharmacist or doctor before relying on it for any condition.
Does Betel Nut interact with prescription medications?
Yes. We list 229 medications with a known interaction with Betel Nut. Use the checker above to see how Betel Nut interacts with a specific drug.
How are Betel Nut interactions rated?
Each interaction is graded major, moderate, or minor based on how clinically significant it is and the strength of the evidence behind it. Major interactions are the most serious and are best avoided, or used only under close professional supervision.
Is it safe to take Betel Nut with my medications?
It depends on the specific medication. Some combinations are fine, while others call for monitoring, timing changes, or should be avoided. Check your exact drug above and confirm with your pharmacist or doctor before starting, stopping, or changing anything.
Where does this Betel Nut interaction information come from?
Our interaction data is built on the Natural Medicines database — an evidence-graded reference for vitamins, herbs, and supplements — and is reviewed by licensed HelloPharmacist pharmacists, who may add clinical context.
What is Betel Nut used for?
People traditionally chew Betel Nut as a stimulant, as a digestive aid, to freshen the breath, and as part of social and cultural rituals. It is not proven to safely treat any medical condition.
Is Betel Nut safe to chew?
No. Regular Betel Nut use is linked to mouth cancer, a serious mouth-stiffening condition, gum and tooth damage, and addiction, so it is best avoided.
Can I use Betel Nut while pregnant or breastfeeding?
No. Betel Nut should be avoided during pregnancy and breastfeeding because it is linked to poor birth outcomes and its active compounds can reach the baby.
Is Betel Nut addictive?
Yes. It contains arecoline, which affects the nervous system in a way similar to nicotine, and many regular users find it hard to stop.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

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