Drug & supplement interaction

Cannabis + Tirzepatide

Tirzepatide brand names: Mounjaro, Zepbound.

No Known Interaction

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated July 2026 · Pair last verified Sep 13, 2026

The bottom line No known interaction

We found no known interaction between Cannabis and Tirzepatide in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first. Additionally, although there is no interaction, the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

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Interaction report

Cannabis and Tirzepatide

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Tirzepatide and Cannabis in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Cannabis safety at a glance

Cannabis overall Use caution Can cause impairment, dependence, and mental health effects; use carefully and under medical guidance where legal.

Pregnancy Unsafe When used orally or inhaled. Constituents in cannabis pass through the placenta and can reduce fetal growth and increase the risk for preterm birth. Cannabis us... Read the full pregnancy detail

Breastfeeding Likely Unsafe When used orally or inhaled. Delta-9-tetrahydrocannabinol (THC) is concentrated and excreted in breast milk for longer than 6 weeks after cessation of cannabis... Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Tirzepatide and Cannabis? Ask Dr. Brian Staiger, PharmD, BCPS directly ›

How we checked

Why No Interaction Is Listed for Tirzepatide

Interactions in our licensed database are recorded against drug classes, not just single drug names. Tirzepatide is filed under a single classification — antidiabetes drugs. Cannabis has documented interactions with 18 drug classes — the most serious being warfarin (coumadin) (major), alcohol (ethanol) (moderate) and anesthesia (moderate) — and none of Tirzepatide’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Cannabis Does Interact With Other Medications

Cannabis has 2 major, 1,109 moderate, 25 minor known drug interactions in our database — Tirzepatide isn’t one of them. If you take anything else, check it against the full list below.

Major 2 Moderate 1,109 Minor 25 No known interaction 1,694 (incl. Tirzepatide)

Taking anything else?

Check Another of Your Medications Against Cannabis

Covers the 2,830 medications we’ve checked against Cannabis. Pick one to open its full report.

What to actually watch for

No Interaction Found — But Data Suggests Cannabis and Tirzepatide May Share Several of the Same Side Effects

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do. 3 of them are worth acting on rather than waiting out — marked below.

Pancreatitis Worth acting on Additional detail
Cannabis
“Small clinical studies suggest that smoking cannabis daily for 21 days increases caloric intake and causes weight gain in otherwise healthy adults who are heavy or casual cannabis smokers. It is thought that cannabinoids in cannabis increase appetite by influencing the endogenous endocannabinoid system.”

Cannabis · Natural Medicines adverse-effect record, reported in diabetes.
6 sources cited

92671. Greenberg I, Kuehnle J, Mendelson JH, Bernstein JG. Effects of Marihuana use on body weight and caloric intake in humans. Psychopharmacol. 1976;49:79-84. PubMed

61847. Mushtaq, F., Mondelli, V., and Pariante, C. M. The metabolic implications of long term cannabis use in patients with psychosis. Epidemiol.Psichiatr.Soc. 2008;17(3):221-226. PubMed

113019. Reis MG, Ferreira AJF, Sohouli MH, Taimeirão DR, Vieira RAL, Guimarães NS. Effect of cannabis and subproducts on anthropometric measures: a systematic review and meta-analysis. Int J Obes (Lond). 2024;48(1):44-54. PubMed

92672. Sansone RA, Sansone LA. Marijuana and body weight. Innov Clin Neurosci. 2014;11(7-8):50-4.

101489. Alshaarawy O, Anthony JC. Are cannabis users less likely to gain weight? Results from a national 3-year prospective study. Int J Epidemiol. 2019 Oct 1;48(5):1695-1700. PubMed

99574. Akturk HK, Taylor DD, Camsari UM, Rewers A, Kinney GL, Shah VN. Association Between Cannabis Use and Risk for Diabetic Ketoacidosis in Adults With Type 1 Diabetes. JAMA Intern Med. 2018. PubMed
Tirzepatide

Listed in the ADVERSE REACTIONS section of the FDA label for Tirzepatide. Read the label on DailyMed ›
Kidney problems Worth acting on Additional detail
Cannabis
“Acute kidney injury has been reported after oral cannabis use. In one case, it was likely caused by pre-existing mild dehydration related to a lack of fluid intake, followed by cannabis-induced diarrhea.”

Cannabis · Natural Medicines adverse-effect record, reported in diarrhea.
6 sources cited

111071. Moussa MK, Hall MAK, Akwe J. Cannabis-induced acute encephalopathy in a 94-year-old woman due to family administration of cannabidiol (CBD) products: A case report. Cureus 2023;15(4):e37927.

115363. Yang G, Li F, Wang Q, Liu Y, Guo J, Yue C. Association between history of cannabis use and outcomes after total hip or knee arthroplasty: a systematic review and meta-analysis. Front Public Health 2024;12:1377688. PubMed

110240. Chabot C, Gouat F. Rare finding of acute eosinophilic pneumonia associated with heavy cannabis use: A case-report. Radiol Case Rep 2022;17(9):3040-3042. PubMed

99585. Nourbakhsh M, Miller A, Gofton J, Jones G, Adeagbo B. Cannabinoid Hyperemesis Syndrome: Reports of Fatal Cases. J Forensic Sci. 2019;64(1):270-274. PubMed

101423. Chocron Y, Zuber JP, Vaucher J. Cannabinoid hyperemesis syndrome. BMJ. 2019 Jul 19;366:l4336. PubMed

101424. Kheifets M, Karniel E, Landa D, Vons SA, Meridor K, Charach G. Resolution of Cannabinoid Hyperemesis Syndrome with Benzodiazepines: A Case Series. Isr Med Assoc J. 2019 Jun;21(6):404-407.
Tirzepatide

Listed in the ADVERSE REACTIONS section of the FDA label for Tirzepatide. Read the label on DailyMed ›
An allergic reaction Worth acting on Additional detail
Cannabis
“Smoking or vaping cannabis can cause cough and bronchodilation. At least 5 cases of pneumomediastinum have been reported. These cases occurred in patients aged 19 to 27 years. In one case, cannabis was smoked the evening before symptoms occurred and in the others, cannabis was smoked daily or chronically; all cases made significant recoveries.”

Cannabis · Natural Medicines adverse-effect record, reported in acute bronchitis.
6 sources cited

17371. Ware MA, Wang T, Shapiro S, et al. Smoked cannabis for chronic neuropathic pain: a randomized controlled trial. CMAJ 2010;182:e694-e701. PubMed

61799. Tetrault, J. M., Crothers, K., Moore, B. A., Mehra, R., Concato, J., and Fiellin, D. A. Effects of marijuana smoking on pulmonary function and respiratory complications: a systematic review. Arch.Intern.Med. 2-12-2007;167(3):221-228. PubMed

96378. Goyal H, Awad HH, Ghali JK. Role of cannabis in cardiovascular disorders. J Thorac Dis. 2017;9(7):2079-2092. PubMed

96389. Ocampo TL, Rans TS. Cannabis sativa: the unconventional "weed" allergen. Ann Allergy Asthma Immunol. 2015;114(3):187-92. PubMed

99581. Ghasemiesfe M, Ravi D, Vali M, et al. Marijuana Use, Respiratory Symptoms, and Pulmonary Function: A Systematic Review and Meta-analysis. Ann Intern Med. 2018;169(2):106-115. PubMed

101420. van de Donk T, Niesters M, Kowal MA, Olofsen E, Dahan A, van Velzen M. An experimental randomized study on the analgesic effects of pharmaceutical-grade cannabis in chronic pain patients with fibromyalgia. Pain. 2019 Apr;160(4):860-869. PubMed
“Oral, topical, and occupational exposure to cannabis has been associated with reports of sensitization and allergic reactions. More than one allergen in cannabis may be responsible. Exposure to cannabis smoke can also cause nasal congestion, runny nose, sneezing, coughing, and wheezing, possibly related to an allergic response in some individuals.

Cases of topical and airborne contact dermatitis have been reported af…”

Cannabis · Natural Medicines adverse-effect record, reported in asthma.
6 sources cited

96389. Ocampo TL, Rans TS. Cannabis sativa: the unconventional "weed" allergen. Ann Allergy Asthma Immunol. 2015;114(3):187-92. PubMed

116450. Wasik J, Likonska A, Kurowski M. IgE-Mediated Allergy and Asymptomatic Sensitization to Cannabis Allergens-Review of Current Knowledge and Presentation of Six Cases. Medicina (Kaunas) 2024;60(6):954. PubMed

112927. Fontane Hoyos CN, Boos J, Goldminz AM. Airborne allergic contact dermatitis to medical marijuana. Contact Dermatitis. 2024;90(1):89-91. PubMed

115374. Heyne S, Steininger J, Bauer A. Occupational allergic contact dermatitis to marijuana. Contact Dermatitis 2024. PubMed

111078. Li J, Miller M, Abu Khalaf S, Nelson TB. Weeding out the culprit: Cannabinoid-associated Stevens-Johnson Syndrome. Cureus 2023;15(5):e39454. PubMed

91918. Ozyurt S, Muderrisoglu F, Ermete M, Afsar F. Cannabis-induced erythema multiforme-like recurrent drug eruption. Int J Dermatol. 2014;53(1):e22-3. PubMed
Tirzepatide

Listed in the ADVERSE REACTIONS section of the FDA label for Tirzepatide. Read the label on DailyMed ›
Drowsiness Additional detail
Cannabis
“Smoking, vaping, or ingesting cannabis can cause headache, dizziness, numbness, disorientation, somnolence, and fatigue. Recurrent, strong headaches associated with cannabis use might be related to reversible cerebral vasoconstriction syndrome (RCVS). In one cohort, 32% of individuals with RCVS were cannabis users.”

Cannabis · Natural Medicines adverse-effect record, reported in cancer.
6 sources cited

17371. Ware MA, Wang T, Shapiro S, et al. Smoked cannabis for chronic neuropathic pain: a randomized controlled trial. CMAJ 2010;182:e694-e701. PubMed

61896. Lynch, M. E. and Campbell, F. Cannabinoids for treatment of chronic non-cancer pain; a systematic review of randomized trials. Br.J.Clin.Pharmacol. 2011;72(5):735-744. PubMed

96384. Whiting PF, Wolff RF, Deshpande S, et al. Cannabinoids for medical use: A systematic review and meta-analysis. JAMA. 2015;313(24):2456-73. PubMed

96813. Lotan I, Treves TA, Roditi Y, Djaldetti R. Cannabis (medical marijuana) treatment for motor and non-motor symptoms of Parkinson disease: an open-label observational study. Clin Neuropharmacol. 2014;37(2):41-4. PubMed

101420. van de Donk T, Niesters M, Kowal MA, Olofsen E, Dahan A, van Velzen M. An experimental randomized study on the analgesic effects of pharmaceutical-grade cannabis in chronic pain patients with fibromyalgia. Pain. 2019 Apr;160(4):860-869. PubMed

113016. Chhabra M, Ben-Eltriki M, Paul A, Lê ML, Herbert A, Oberoi S, Bradford N, Bowers A, Rassekh SR, Kelly LE. Cannabinoids for symptom management in children with cancer: A systematic review and meta-analysis. Cancer. 2023 Nov 15;129(22):3656-3670. doi: 10.10 PubMed
Tirzepatide

Listed in the ADVERSE REACTIONS section of the FDA label for Tirzepatide. Read the label on DailyMed ›
Constipation reported in 3.7% of FDA reports for Tirzepatide Additional detail
Cannabis
“Smoking and ingesting cannabis can cause xerostomia, nausea, and vomiting (13,18,2619,61896,96384,96813,113016). Vaping cannabis has been reported to cause sore throat and bad taste in up to 35% of patients. Cannabis has also been reported to cause oral candidiasis. There have been 2 case reports of tongue candidiasis attributed to dry mouth after heavy cannabis use.”

Cannabis · Natural Medicines adverse-effect record, reported in burns.
6 sources cited

13. Robbers JE, Speedie MK, Tyler VE. Pharmacognosy and Pharmacobiotechnology. Baltimore, MD: Williams & Wilkins, 1996.

18. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.

2619. Hebel SK, ed. Drug Facts and Comparisons. 52nd ed. St. Louis: Facts and Comparisons, 1998.

61896. Lynch, M. E. and Campbell, F. Cannabinoids for treatment of chronic non-cancer pain; a systematic review of randomized trials. Br.J.Clin.Pharmacol. 2011;72(5):735-744. PubMed

96384. Whiting PF, Wolff RF, Deshpande S, et al. Cannabinoids for medical use: A systematic review and meta-analysis. JAMA. 2015;313(24):2456-73. PubMed

96813. Lotan I, Treves TA, Roditi Y, Djaldetti R. Cannabis (medical marijuana) treatment for motor and non-motor symptoms of Parkinson disease: an open-label observational study. Clin Neuropharmacol. 2014;37(2):41-4. PubMed
Tirzepatide

Listed in the ADVERSE REACTIONS section of the FDA label for Tirzepatide, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›
Reduced appetite Additional detail
Cannabis
“When used short-term, smoking cannabis or using oromucosal spray containing cannabis extract (Sativex, GW Pharmaceuticals) can cause anxiety or paranoid thinking or dissociation. One small clinical trial shows that inhaling vaporized cannabis containing delta-9- tetrahydrocannabinol (THC) 10 mg, alone or with cannabidiol (CBD) 10-30 mg, modestly induces psychotic symptoms.”

Cannabis · Natural Medicines adverse-effect record, reported in antidepressant-induced sexual dysfunction.
6 sources cited

61896. Lynch, M. E. and Campbell, F. Cannabinoids for treatment of chronic non-cancer pain; a systematic review of randomized trials. Br.J.Clin.Pharmacol. 2011;72(5):735-744. PubMed

96814. Duran M, Pérez E, Abanades S, et al. Preliminary efficacy and safety of an oromucosal standardized cannabis extract in chemotherapy-induced nausea and vomiting. Br J Clin Pharmacol. 2010;70(5):656-63. PubMed

110242. Englund A, Oliver D, Chesney E, et al. Does cannabidiol make cannabis safer? A randomised, double-blind, cross-over trial of cannabis with four different CBD:THC ratios. Neuropsychopharmacology 2022. PubMed

110254. Hutten NRPW, Arkell TR, Vinckenbosch F, et al. Cannabis containing equivalent concentrations of delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD) induces less state anxiety than THC-dominant cannabis. Psychopharmacology (Berl) 2022;239(11):3731-374 PubMed

99583. Lawn W, Freeman TP, Pope RA, et al. Acute and chronic effects of cannabinoids on effort-related decision-making and reward learning: an evaluation of the cannabis 'amotivational' hypotheses. Psychopharmacology (Berl). 2016;233(19-20):3537-52. PubMed

18. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
Tirzepatide

Listed in the ADVERSE REACTIONS section of the FDA label for Tirzepatide. Read the label on DailyMed ›
Stomach pain Additional detail

Cannabis

Recorded for Cannabis in the same Natural Medicines adverse-effect record shown under An allergic reaction above.

Tirzepatide

Listed in the ADVERSE REACTIONS section of the FDA label for Tirzepatide. Read the label on DailyMed ›
Diarrhea reported in 5.9% of FDA reports for Tirzepatide Additional detail

Cannabis

Recorded for Cannabis in the same Natural Medicines adverse-effect record shown under Constipation above.

Tirzepatide

Listed in the ADVERSE REACTIONS section of the FDA label for Tirzepatide, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›
Nausea reported in 10.2% of FDA reports for Tirzepatide Additional detail

Cannabis

Recorded for Cannabis in the same Natural Medicines adverse-effect record shown under Pancreatitis above.

Tirzepatide

Listed in the ADVERSE REACTIONS section of the FDA label for Tirzepatide, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›
Vomiting reported in 4.9% of FDA reports for Tirzepatide Additional detail

Cannabis

Recorded for Cannabis in the same Natural Medicines adverse-effect record shown under Constipation above.

Tirzepatide

Listed in the ADVERSE REACTIONS section of the FDA label for Tirzepatide, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›

Reported for Cannabis but not commonly for Tirzepatide: a stroke or mini-stroke, a severe skin reaction, low blood pressure and an electrolyte imbalance.

Effects for Tirzepatide come from the ADVERSE REACTIONS section of its FDA label; effects for Cannabis come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 140,435 voluntary FDA FAERS reports for Tirzepatide that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Cannabis in Pregnancy & Breastfeeding

Pregnancy Unsafe

When used orally or inhaled. Constituents in cannabis pass through the placenta and can reduce fetal growth and increase the risk for preterm birth. Cannabis use during pregnancy is also associated with placental abruption, stillbirth, preterm delivery, fetal abnormalities, congenital birth defects of various organ systems, low birth weight, small for gestational age, increased need for neonatal intensive care, and childhood leukemia. Prenatal cannabis use has also been associated with long-term adverse developmental effects in the offspring, such as worsened cognition, increased risk for neurodevelopmental disorders such as autism spectrum disorder and attention deficit hyperactivity disorder, and increased risk for psychological issues during adolescence. Due to the observational nature of these studies, it is unclear if cannabis causes these adverse effects. Umbilical artery Doppler scans also show that cannabis use can increase placental vascular resistance. Cannabis use during pregnancy has been associated with increased risk of anemia and hypertension in the mother. The rate of negative fetal outcomes due to cannabis use during pregnancy may have been previously underestimated due to reliance on maternal self-reporting of use. Recent programs requiring maternal urine toxicology testing have increased awareness of maternal cannabis use and suggest that negative fetal outcomes occur more frequently than previously recorded.

Lactation Likely Unsafe

When used orally or inhaled. Delta-9-tetrahydrocannabinol (THC) is concentrated and excreted in breast milk for longer than 6 weeks after cessation of cannabis use. Prolonged cannabis use during lactation has been associated with delayed motor development. Observational research in mothers who successfully abstained from cannabis use for 6 weeks (confirmed by a negative THC urine screen) after smoking cannabis prenatally at least twice weekly, found that THC levels in breastmilk increased during the first 2 weeks of abstinence and then decreased but remained detectable at 6 weeks. For patients planning to breastfeed, recommend abstaining from cannabis use prenatally and during lactation. Recommendations to discard breastmilk until THC levels are undetectable are not practical, as this may take more than 6 weeks.

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

From our Q&A

Questions About Cannabis or Tirzepatide

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Cannabis or Tirzepatide, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Can You Use Cannabis While Taking Binimetinib (Mektovi)? Answered by Dr. Brian Staiger, PharmD · July 2026 ›

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Tirzepatide

This page covers Cannabis only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Tirzepatide page lists 239 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Siberian Cocklebur (major), Acai (moderate), African Wild Potato (moderate), Agaricus Mushroom (moderate) and Agmatine (moderate).

By severity: 1 major · 208 moderate · 30 minor.

Open the Tirzepatide interaction page

One more smart check

Taking Cannabis as Part of a Dietary Supplement Product? Check It for Interactions

We hold 21 real supplement products containing Cannabis, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Cannabis. Even though Cannabis itself has no known interaction with Tirzepatide, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Cannabis and Tirzepatide Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Cannabis

Top 25%

#215 of 1,452 supplements looked up here in the last 7 days

29 days ago today

Medication Tirzepatide

Top 1%

#20 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?

Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Cannabis reference on this page ↓
Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Cannabis and Tirzepatide records this page draws on were last updated July 11, 2026.
What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.

Data structure & sourcing designed and verified by Dr. Brian Staiger, PharmD, BCPS.

Supplement

About Cannabis

What is Cannabis?

Chronic pain
Nausea and vomiting from chemotherapy
Muscle spasticity (e.g., multiple sclerosis)
Anxiety and stress
Sleep problems
Appetite stimulation

Cannabis contains many active compounds, mainly THC (which causes a 'high') and CBD (which does not). Some uses, such as chemotherapy-related nausea, certain seizure disorders, and muscle spasticity, have meaningful evidence, while many other popular uses are not well proven. It can cause real side effects and impairment, so talk to your doctor or pharmacist and follow your local laws before using it.

Cannabis sativa · Cannabaceae · Dried flowers (buds), leaves, and extracted resins/oils · Dried flower for smoking or vaporizing, edibles, oils and tinctures, capsules, topical creams, prescription products (e.g., dronabinol, nabilone, cannabidiol)

An interaction check asks whether these two react with each other — it does not ask whether Cannabis is a good idea for someone in your situation. Here is what our Cannabis record says about it on its own.

Cannabis: dosing

There is no single standard dose for cannabis. The right amount depends on the product, its strength, the THC and CBD content, how it is taken, and the person using it. Products can vary a lot in potency, which makes consistent dosing difficult.A common harm-reduction approach is to 'start low and go slow,' meaning begin with a small amount and wait to see how it affects you before taking more. This is especially important with edibles, which can take an hour or more to work.For prescription cannabis-based medicines, follow your doctor's instructions exactly.

From our Cannabis monograph — the full record covers uses, side effects and every documented interaction.

Read the full Cannabis monograph & all interactions

Medication

About Tirzepatide injection

What Is Tirzepatide injection Used For?

Brand names: Mounjaro, Zepbound

Zepbound is used alongside a reduced-calorie diet and increased physical activity to reduce excess body weight and maintain that weight loss long term in adults with obesity, or in adults who are overweight and have at least one weight-related health condition. Zepbound is also approved to treat moderate to severe obstructive sleep apnea (OSA) in adults with obesity.

Zepbound should not be combined with other tirzepatide-containing products or with any GLP-1 receptor agonist.

Most-Reported Side Effects for Tirzepatide

From FAERS, the FDA’s public side-effect reporting system (160,663 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Nausea 17,092 reports

Injection site pain 13,906 reports

Diarrhea 10,006 reports

Extra dose administered 9,608 reports

Vomiting 8,267 reports

See full Tirzepatide injection drug information

Keep checking

Other Drugs & Cannabis

Browse every other medication we’ve checked against Cannabis — both the ones with a known interaction and the ones without. Select any drug for the full detail.

2Major

1,109Moderate

25Minor

1,693No known interaction

2 Major 1,109 Moderate 25 Minor 1,693 No interaction

Major

2 interactions

Moderate

1,109 interactions

Showing 60 of 1,109 moderate interactions — see all 1,109 on the Cannabis page.

Minor

25 interactions

No interaction 1,693 drugs checked — show the list

We also checked Cannabis against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 1,693 medications checked with no known interaction — see the full Cannabis list.

See the full Cannabis interactions page

See every supplement checked against Tirzepatide, ranked by severity

Evidence & sources

Cannabis References

The 261 references that drive our Cannabis 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.

Robbers JE, Speedie MK, Tyler VE. Pharmacognosy and Pharmacobiotechnology. Baltimore, MD: Williams & Wilkins, 1996.
Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
Johnson MA, Robin P, Smith RP, Morrisona D, et al. Large lung bullae in marijuana smokers. Thorax 2000;55:340-2.. PubMed
Hebel SK, ed. Drug Facts and Comparisons. 52nd ed. St. Louis: Facts and Comparisons, 1998.
Tyrey L. Delta 9-Tetrahydrocannabinol: a potent inhibitor of episodic luteinizing hormone secretion. J Pharmacol Exp Ther 1980;213:306-8. DOI
Briggs GB, Freeman RK, Yaffe SJ. Drugs in Pregnancy and Lactation. 5th ed. Philadelphia, PA: Lippincott Williams & Wilkins; 1998.
Solowij N, Stephens RS, Roffman RA, et al. Cognitive functioning of long-term heavy cannabis users seeking treatment. JAMA 2002;287:1123-31.. PubMed
Marinol Prescribing Information. Solvay Pharmaceuticals, Rev March 2008. Available at: http://www.solvaypharmaceuticals-us.com/static/wma/pdf/1/3/2/5/0/004InsertText500012RevMar2008.pdf (Accessed 2 July 2009).
Yamreudeewong W, Wong HK, Brausch LM, Pulley KR. Probable interaction between warfarin and marijuana smoking. Ann Pharmacother 2009;43:1347-53. PubMed
Ware MA, Wang T, Shapiro S, et al. Smoked cannabis for chronic neuropathic pain: a randomized controlled trial. CMAJ 2010;182:e694-e701. PubMed
Pellinen, P., Honkakoski, P., Stenback, F., Niemitz, M., Alhava, E., Pelkonen, O., Lang, M. A., and Pasanen, M. Cocaine N-demethylation and the metabolism-related hepatotoxicity can be prevented by cytochrome P450 3A inhibitors. Eur.J Pharmacol 1-3-1994;2 PubMed
Johnson, E. M. Substance abuse and women's health. Public Health Rep. 1987;102(4 Suppl):42-48.
Astley, S. J. and Little, R. E. Maternal marijuana use during lactation and infant development at one year. Neurotoxicol.Teratol. 1990;12(2):161-168. PubMed
Levy, R., Schurr, A., Nathan, I., Dvilanski, A., and Livne, A. Impairment of ADP-induced platelet aggregation by hashish components. Thromb.Haemost. 12-31-1976;36(3):634-640. DOI
Payne, R. J. and Brand, S. N. The toxicity of intravenously used marihuana. JAMA 7-28-1975;233(4):351-354. DOI
Sheweita, S. A. Narcotic drugs change the expression of cytochrome P450 2E1 and 2C6 and other activities of carcinogen-metabolizing enzymes in the liver of male mice. Toxicology 9-30-2003;191(2-3):133-142. PubMed
Rog, D. J., Nurmikko, T. J., Friede, T., and Young, C. A. Randomized, controlled trial of cannabis-based medicine in central pain in multiple sclerosis. Neurology 9-27-2005;65(6):812-819. PubMed
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Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Related: nutrient depletion

Tirzepatide Is Linked to Lower Levels of One Nutrient

Natural Medicines records Tirzepatide as a medicine that can lower these. This is not an interaction with Cannabis — it is a separate effect of the medicine, and it is a reason some people are advised to supplement rather than to avoid one:

COENZYME Q10›

Read the full Tirzepatide nutrient depletion report ›

Depletion records come from the licensed Natural Medicines database. Do not start a supplement on the strength of this page — ask your pharmacist or doctor whether it applies to you.

Pharmacist Counseling Corner

Taking Cannabis and Tirzepatide Together: Common Questions

Is it safe to take Cannabis with Tirzepatide?

We do not list a known interaction between Cannabis and Tirzepatide. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.

Do Cannabis and Tirzepatide have any of the same side effects?

Yes — our sources link each of them separately to 10 of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.

How was the Cannabis and Tirzepatide combination checked?

Interactions in our licensed database are recorded against drug classes. Tirzepatide is filed under 1 classification, and Cannabis has documented interactions with 18 drug classes — none of Tirzepatide's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.

Does Cannabis interact with any other medications?

Yes. Cannabis has 1,136 documented drug interactions in our database — Tirzepatide is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.

Does Tirzepatide interact with any supplements?

Yes. Tirzepatide has documented interactions with 239 supplements in our database — Cannabis is not one of them. The Tirzepatide interaction page linked on this page lists every one, ranked by severity.

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

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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.