Smart Responsible Vendor Training (RVT)

Maryland Cannabis Administration (MCA) implemented a smart Responsible Vendor Training (RVT) program to support licensee compliance and enhance the safety of medical cannabis patients, adult-use consumers, and industry employees.

The MCA established the Responsible Vendor Training (RVT) program – outlined in COMAR – to support licensee compliance and enhance the safety of cannabis patients, adult-use consumers, and industry employees. All registered cannabis business agents in Maryland must complete an MCA-approved RVT program starting January 1, 2025, and renew annually.

The MCA develops policies, procedures, guidelines, and regulations to implement programs to make cannabis available safely and effectively. Ensuring high-quality and comprehensive training resources for cannabis business agents is essential to this mission.

An organization approved to provide Responsible Vendor Training (RVT) are separate entities and independent from the MCA that have been approved to provide compliance training to registered business agents of Maryland licensed cannabis businesses.

When the MCA approves a provider’s Responsible Vendor Training (RVT), they will be posted as a training resource on the MCA website to assist cannabis businesses and employees in understanding all RVT requirements, applicable state laws, and regulations governing the mandatory training requirements.

MCA-approved RVT providers must always be up-to-date on developments in federal and state laws and regulations to ensure their training and testing materials are current. RVT providers are required to meet record retention requirements. To maintain “Approved” status, RVT providers must submit a renewal application form to the MCA, including a list of all changes made to the training since its initial MCA approval every three (3) years and/or upon request.

RVT is more than just a compliance requirement since this training is designed to elevate the standards of cannabis handling and usage within Maryland. The program covers everything from Maryland cannabis laws and regulations to best practices that ensure the safe and effective availability of cannabis to consumers and patients.

Maryland Cannabis Administration (MCA)

The Maryland Cannabis Administration (MCA) – formerly Maryland Medical Cannabis Commission – was established in 2014 to develop policies, procedures, and regulations to implement the medical cannabis program and ensure medical cannabis is available to qualifying patients safely and effectively.

In 2023, the MCA became an independent agency, that now oversees all licensing, registration, inspection, and testing measures on Maryland’s medical and adult-use cannabis industry and provides relevant program information to patients, adult consumers, providers, growers, processors, dispensaries, independent testing laboratories, and ancillary businesses.

The MCA has nine (9) major departments: Compliance and Regulation, Communications, Budget and Procurement, Information Technology, Human Resources, Policy and Government Affairs, Research and Education, Medical Cannabis Registration, and Product Testing and Laboratory Compliance. We depend on full-time staff to support patients, adult consumers, providers, caregivers, and Maryland businesses.

In addition to the MCA, the Maryland Office of the Comptroller is committed to supporting Maryland’s business community, including the state’s newly legal adult-use cannabis industry. The agency administers the state’s sales and use tax, which includes responsibility for collecting the tax and distributing revenue from tax collected on retail sales of adult-use cannabis.

Maryland Cannabis Legalization History

Maryland is the 20th state to legalize cannabis, on November 8, 2022, 67.2% of Maryland voters approved “Question 4” (legislatively referred to as “Ballot Question”) and its passage was the highest margin of any ballot measure to legalize cannabis to legalize cannabis for adults twenty-one (21) and over.

On July 1, 2023, legalization officially went into effect. Adults can legally possess up to one-and-a-half (1.5) ounces (oz) of cannabis and cultivate up to two (2) plants. During the 2023 legislative session, the Maryland General Assembly passed twin bills (HB 556/ SB 516) to implement an adult-use cannabis market in the state

On May 4, 2023, Governor Wes Moore signed the legislation into law, so existing medical dispensaries began sales to adult-use consumers on July 1, 2023, and the state of Maryland has recorded nearly $800 million in sales since sales began. Maryland law imposes a nine percent (9%) sales and use tax on retail sales of adult-use cannabis and products, which is the same rate that applies to the sale of alcoholic beverages in the state.

The legislature also passed HB 1071 which went into effect on July 1, 2023, to provide legal protections so that the odor of cannabis alone is not grounds for a search and reduced the penalty for public smoking from two-hundred fifty dollars ($250) to a fifty dollar ($50) fine for a first offense.

On July 1, 2023, the MCA made its smart Responsible Vendor Training (RVT) provider application publicly available enabling business entities, cannabis education professionals, and other qualified professionals who meet minimum qualifications to become an authorized RVT provider.

Also, smart Responsible Vendor Training providers may elect to add additional, value-added, material outside the requirements of what MCA requires (COMAR There is one (1) limitation on who cannot become an RVT provider, which limits any owner or employee of an entity providing an RVT is not permitted to have employment by or interest in a Maryland cannabis licensee or registrant.

Required RVT Program Topics

The Maryland Responsible Vendor Training (RVT) program requires a post-training test and participants must achieve a score of seventy percent (70%) or higher to pass this test and receive a certificate of completion, in addition, online programs must employ measures to ensure participants cannot skip through any portions of the training.

Approved providers shall allow MCA staff to observe their courses either online or in-person, without notice. Once participants have completed their course, each participant must complete an evaluation assessing program effectiveness; the MCA may provide specific evaluation questions and/or require submission of evaluation responses.

RVT providers must review evaluations and make course corrections, under the MCA’s specifications as appropriate that may be delivered in an online or virtual classroom setting provided that the participant’s identity is verified and ensures interactivity throughout the training. More information about RVT standards for “Cannabis Business Agents” (COMAR RVT applications shall at a minimum identify proficiency of the person in the training components of the Alcoholic Beverages and Cannabis Article, §36-1001(C), Annotated Code of Maryland, including providing accurate information on:

Cannabis Business Agents (COMAR

Required license, registration, and other business authorization:

  • Standard Cannabis License (COMAR 14.17.06)
  • Micro Licenses (COMAR 14.17.07)
  • Laboratory Registration & Operations (COMAR 14.17.08)
  • Other Cannabis Business (COMAR 14.17.09)
  • Licenses (MD Code, Alcoholic Beverages, §36-401)
  • Registration Of Other Businesses (MD Code, Alcoholic Beverages, §36-409)
  • Labs (MD Code, Alcoholic Beverages, §36-408)

Age requirements, patient registration, and other acceptable identification on cards:

  • Patient Registration (COMAR 14.17.04)
  • Patient identification (COMAR
  • General Identification Requirements (COMAR
  • Age Requirements (COMAR 14.17.12)
  • Complaints, Enforcement, Record Keeping, and Inspections of Cannabis Businesses (COMAR
  • Medical Cannabis (MD Code, Alcoholic Beverages, §36-302)

Information on serving size, Tetrahydrocannabinol (THC), and other cannabinoid potency, and impairment:

  • Product Limits For Adult Use (COMAR 14.17.13)
  • Possessing or Administering Controlled Dangerous Substance (§5-601)

Record Maintenance

  • COMAR (points to COMAR 10.62.32)
  • Training Records For Licensees (COMAR

Patient Privacy Protection

  • HIPAA Compliance (COMAR

Prohibited or Unlawful Acts

  • Prohibited Acts (COMAR 14.17.20)
  • Prohibited Acts Concerning Sale, Delivery, Transfer (36-1101)
  • Advertising Restrictions (MD AL Bev D. III, T. 36, Subt. 9, Refs & Annos)

Administrative or Criminal Liability

  • General Discipline & Enforcement (COMAR 14.17.14)
  • MD Code, Alcoholic Beverages, § 36-202, See (a)(6) and (7) and (b) about MCA power to impose sanctions 2
  • Definitions – Personal Use Amount (MD Code, Criminal Law, § 5-101)
  • Other Dispensary Requirements/Limitations (36-410)

State and local licensing and enforcement

  • Coordination of enforcement between MCA and Comptroller (COMAR
  • General Discipline and Enforcement (COMAR
  • Local For Political Subdivisions’ Zoning Powers (36-405)
  • Specific Zoning Rules For Dispensaries (36-410)

Statutory and regulatory requirements for employees and owners:

  • Owners (COMAR 14.17.16, 36-502 & 36-504)
  • Employees (COMAR 14.17.15 & §36-501)
  • Limits On Number Licenses (36-401(e))

Statutory and regulatory requirements for the sale, transfer, or delivery of cannabis or products:

  • Dispensing Cannabis (COMAR
  • Cannabis Transporters (COMAR 10.62.18)
  • Delivery Service Operations (COMAR
  • Delivery As Micro Dispensary (COMAR
  • Delivery As Standard Dispensary (COMAR
  • Prohibited Acts Concerning Sale, Delivery, Transfer (COMAR 36-1101)

MCA-approved RVT providers must maintain training records for four (4) years. Providers must make records available for inspection by MCA staff and any other applicable licensing authority upon request. The RVT provider shall ensure that all other terms and deadlines are met.

How do I become a Cannabis Business Agent in Maryland?

As the cannabis industry evolves, so too will the RVT program, adapting to new laws, products, and consumer needs. The potential for specialized tracks and advanced certifications is on the horizon, promising a future where cannabis education and compliance are standardized, industry practices. Green CulturED’s subject matter experts are always on top of the latest updates from the MCA and other regulatory agencies to ensure you’re getting the most up-to-date training.

Implementing a team training program has its challenges, from ensuring consistent and up-to-date content to managing the logistical challenges of widespread training, such as recordkeeping, enrollment distribution, and human resource necessities. Yet, the structure of Green CulturED’s training platform, with its online and virtual classroom options, allows for flexible, accessible learning solutions, manager dashboard functionalities, downloadable certificates, and team management resources. It is a one-stop shop for cannabis operators and employees.

For businesses, RVT means risk reduction, enhanced credibility, and government compliance. Employees gain the necessary insights into the legal and practical aspects of cannabis handling, boosting their confidence and competence. Consumers benefit from interacting with informed vendors, ensuring a safe and comfortable purchasing environment. An interaction with a budtender can dictate whether the customer returns. Pharmacists are trained to interact in similar manners; cannabis is no different. Understanding proper standards, protocols, and procedures is the baseline for cannabis agents to properly execute the position under the direction of the MCA guidelines.

Maryland Cannabis Frequently Asked Questions

Question: Can I smoke in public?

  • Answer: Smoking cannabis (and hemp) is prohibited in any public place. This includes outdoor spaces and indoor spaces open to the public including parks, streets and sidewalks, bars and restaurants, public transportation (e.g, buses, vans, trains, taxicabs, limousines) and indoor places of employment. Because cannabis remains illegal at the federal level, you also may not possess cannabis on any federal property​ such as national park.

Driving high can lead to a DUI?

Using cannabis while driving (by a driver or passenger) and impaired driving remains illegal under Maryland law. Law enforcement officers can make a cannabis DUI arrest if they observe impairment using a standard field sobriety testing (roadside test) method. Let’s keep Maryland safe and plan ahead before using cannabis. Learn more with this Cannabis and Driving Don’t Mix fact sheet.

A little high is too high to drive?

Cannabis can impair important skills needed for safe driving. These include coordination, judgement, and reaction time – remember, reacting too slowly can be just as dangerous when driving. Because it may not be easy to recognize when you are impaired by cannabis, and effects from cannabis edibles can delayed, be responsible and always make a plan before consuming. Learn more with this Cannabis and Driving Don’t Mix fact sheet​.

I can only buy it if I’m 21+?

Like tobacco and alcohol, the legal purchase age for cannabis in Maryland is 21 or older. Valid, government-ID (driver’s license, passport) is required at the point-of-sale. Licensed disp​​ensaries​​ are the only place to legally buy cannabis in Maryland.

I can’t take it out of Maryland?

Cannabis remains illegal under federal law, and you may not carry or transport cannabis over state lines. It remains illegal to leave (or enter) Maryland with any cannabis products – medical or adult-use (non-medical) products. Mailing cannabis in or out of the State is illegal.

Questions about new adult-use legislation

How can I buy cannabis products? What products can I purchase?

Cannabis products may be purchased from licensed dispensaries. Cannabis products are subject to a 9 % sales tax (the same as alcohol).

A person may purchase cannabis or cannabis products from a licensed dispensary if they display a government-issued photo ID at the point-of-sale that demonstrates they are 21 years or older (driver’s license, state ID card, passport/passport card, military ID, tribal card). Individuals will only be able to purchase up to the personal use amount authorized under law. This amount is up to 1.5 ounces of cannabis flower (including joints and pre-rolls), 12 grams of concentrated cannabis (vape products), or a total amount of edible cannabis products that does not exceed 750 mg THC.

Who regulates the expanded medical and adult-use cannabis industry?

HB 556 and SB 516 established a new agency, the Maryland Cannabis Administration, to regulate cannabis businesses in the State. Maryland Medical Cannabis Commission staff transitioned to the new agency to provide continuity of operations for businesses and patients in the medical program, and new regulations governing health, safety and security are supplemental to the existing medical cannabis program regulations.

How does legalization of adult-use cannabis impact the medical cannabis program?

The new law does not directly impact the medical cannabis program. Patients may continue to obtain medical cannabis from licensed dispensaries, and individuals 18 years or older may register to participate in the program. The new law specifically establishes patient-only operating hours or dedicated service lines for patients, product availability, and other accommodations to ensure that registered patients continue to be able to access necessary medication.

I am interested in a cannabis license, what should I do?

The MCA opened the Social Equity Verification Portal on September 8. Prospective applicants are able to confirm their eligibility using this tool prior to the first round of licensing. To request a link to this portal from the MCA, you must first complete this form:
Cannabis Business Licensing Interest Form.​
The first license application round is scheduled to open on November 13 and close on December 12 at 5 PM EST. Click for additional information on the anticipated timeline​ for the new adult-use cannabis licensing process.

​How did cannabis become legal for adult-use in Maryland?
Maryland voters approved a ballot referendum in the 2022 General Election to allow use of cannabis by adults 21+ (hence, “adult-use”) starting July 1, 2023. During the 2023 legislative session, the General Assembly passed legislation that provided a framework for implementing legal adult-use sales, including a licensing and taxation framework (see House Bill 556/Senate 516). The Cannabis Reform Act, which took effect immediately upon Governor’s signature on May 3, 2023, authorized existing licensed dispensaries to convert their licenses for dual medical and adult-use sales by July 1, thereby creating a legal adult-use marketplace as of July 1, 2023. The Act also authorized the Maryland Cannabis Administration to issue additional grower, processor, and dispensary licenses, and new incubator licenses over two licensing rounds.

How does the legislation address social equity?

The legislation prioritizes​ equity in cannabis licensing and seeks to ensure that individuals and communities harmed by cannabis prohibition can access the economic opportunities associated with cannabis legalization. Specifically, it prioritizes diversity and equity in licensing by:

Establishing exclusive social equity applicant licensing rounds for individuals and businesses from communities disproportionately harmed by cannabis prohibition and enforcement;
Providing access to capital – in the form of grants and no-interest loans – and technical application and operational assistance to businesses that qualify as social equity applicants;
Establishing new license categories (e.g., on-site consumption, incubator) and classes of licenses (e.g., micro businesses) that require less capital to operationalize;
Eliminating non-violent cannabis convictions as a barrier to employment in the cannabis industry;
Creating an Office of Social Equity that will assist social equity applicants and small, minority- and women-owned businesses apply for licenses and obtain financing for their businesses; and
Eliminating barriers to entry for small businesses, such as property requirements, high application fees, and competitive scoring applications.
Additionally, the laws passed in 2022 and 2023:
Establish a process for expungement of cases in which possession of less than 10 grams of cannabis is the only charge (along with additional expungement provisions),
Increase the amount of cannabis a person may possess that is subject to a civil fine rather than criminal penalty from 10 grams to 2.5 ounces (effective January 1, 2023);
Establish new funds including a business assistance fund to increase participation in the cannabis industry by small, minority and women-owned businesses and a community reinvestment and repair fund, which provides monies to communities disproportionately impacted by cannabis prohibition​ and enforcement. Approximately thirty percent of adult-use sales tax revenue (less MCA operating costs) goes to the community reinvestment and repair fund.
Is cannabis still illegal at the federal level?

Yes, the use and possession of cannabis remains illegal under the Federal Controlled Substances Act of 1970 (CSA). States may allow adult use within their jurisdictions, but interstate transport is still prohibited under federal law. Cannabis possession also remains
unlawful on federal land (including federal buildings, national parks, military bases, etc.), even within states that have legalized it.

Purchase, possession, and home grow questions

My local convenience store/gas station sells THC products. Are these products legal?

  • Answer:

As of July 1, 2023, any product containing more than 0.5 mg THC per serving and 2.5 mg THC per package, with the exception of certain full spectrum tincture products, may only be sold in a licensed cannabis dispensary. This requirement extends to all THC isomers, including delta-8, delta-9, and delta-10.

​How old do I have to be to legally use or possess cannabis?

  • Answer: Effective July 1, 2023, a person 21 years or older may lawfully possess and use cannabis.

Is a medical card needed to purchase cannabis?

  • Answer: A medical card is still needed to purchase cannabis sold as part of the medical cannabis program. Learn more about the Medical Cannabis Program ​here.​

Does Maryland have reciprocity for medical cannabis patients from other states?

  • Answer: Only individuals who are registered, certified Maryland medical cannabis patients and caregivers can purchase products under the parameters of Maryland’s Medical Cannabis Program. However, individuals from out-of-state who are at least 21 years of age with government-issued ID will be permitted to purchase adult-use cannabis from licensed dispensaries in Maryland beginning July 1, 2023. Interstate transport of cannabis is still prohibited under federal law.

​Will the military be exempt from the age requirement, i.e., can they purchase at age 18?

  • Answer: No, members of the military are not exempt. Only persons aged 21 years or older may use or possess non-medical cannabis. Other federal restrictions on the use or possession of cannabis may apply to members of the military.​

How much cannabis can I legally possess?

  • Answer: Adults 21 years and older may possess up to 1.5 ounces of cannabis flower, up to 12 grams of concentrated cannabis; or a total amount of cannabis products that does not exceed 750 mg of THC. This is known as the “personal use amount.”

I am under 21. Are there penalties for underage use and possession of cannabis?

  • Answer: A person under 21 years of age may not possess or use non-medical cannabis. Possession of 2.5 ounces or less (a civil use amount) may result in a fine, a court order to attend drug education programming, and referral for assessment and/or treatment of substance use disorder. Possession of more than 2.5 ounces may result in criminal penalties.

Is it legal to grow cannabis at home?

  • Answer: A person 21 years or older may lawfully cultivate up to two plants in their home, out of public view. Likewise, a household may cultivate a maximum of two plants, regardless of how many persons over age 21 live in the residence. Individuals under 21 are not permitted to cultivate cannabis plants. In addition, medical patients registered with the Maryland Cannabis Administration can cultivate two additional plants, for a total of four plants; not to exceed more than four plants in a given residence. Landlords and property owners can prohibit growing cannabis on their properties.

Cannabis Use and Consumption Questions

Where can I legally use cannabis?

  • Answer: Adults 21+ can use cannabis in private homes and private property​. However, landlords and management companies can prohibit cannabis use. If you rent, be sure to read your rental agreement. Most hotels do not permit guests to smoke cannabis in their rooms. Ask the hotel reception desk about their policy. If you stay in vacation rental, check with the property owner about their rules for your stay.

Can I use cannabis at work?

  • Answer: The Cannabis Reform Act does not address cannabis use or impairment in the workplace. Individuals remain subject to any existing laws and workplace policies on substance or cannabis use (e.g., federal laws prohibiting the operation of commercial transport vehicles while impaired, or workplace policies prohibiting cannabis use specifically and/or impairment generally). The legislation does not address the use of employer drug screening of employees or prospective employees. Your employer or prospective employer can provide more specific information about its policies regarding substance use in the workplace.

Maryland Public Health and Cannabis Safety Questions

How does the new law protect youth?

  • Answer: In addition to prohibiting cannabis use and possession for individuals under 21 years of age, the Cannabis Reform Act includes public health best practices to prevent youth access and to reduce the appeal of cannabis to youth. These include marketing and advertising restrictions, age verifications at the point of sale, child-resistant packaging, and restrictions on sales near schools and youth-serving locations like libraries and parks.

What should parents know about youth use of cannabis?

  • Answer: Cannabis use can harm the health and wellbeing of youth and young adults. Cannabis use may permanently affect the developing brain, especially with regular or heavy use.2 Parents, caregivers, and trusted adults should discourage youth and young adults from using cannabis; should not consume cannabis in front of youth or young adults; and should always keep cannabis out of sight and locked if it is stored in the home. See Storing Cannabis Safely fact sheet.

​Are there health risks associated with adult-use cannabis?

  • Answer: The health impacts of cannabis use are not fully known. Studies have linked cannabis use, especially frequent use with cannabis use disorder and addiction, anxiety and paranoia,9 and psychosis 10. People who smoke or vape cannabis regularly, even without tobacco, are more likely to experience irritation or inflammation in the lining of the lungs. 11,12,13 Secondhand cannabis smoke may also pose health risks as it has been found to contain many of the same toxic and cancer-causing chemicals in tobacco smoke.14

Is it safe to use cannabis during pregnancy or while breastfeeding?

  • Answer: A product being legal does not mean it is safe for anyone to use. Much is unknown about the short and long-term effects of cannabis use during pregnancy and while breastfeeding. The American College of Obstetrics and Gynecologists and the American Academy of Pediatrics recommend NOT using any type of cannabis (including CBD) while pregnant or breastfeeding. See Cannabis and Pregnancy & Breastfeeding fact sheet.

What are the risks of mixing cannabis with alcohol, tobacco, and/or prescription medication?

  • Answer: Using alcohol and cannabis at the same time can result in greater impairment than when using either one alone, which can lead to greater risk for personal harm (and harm to others).15 Tobacco and cannabis used together increase your exposure to chemicals that may harm the lungs and cardiovascular system (heart and blood vessels).16 Cannabis may alter the effects and/or potency of prescription medication.17 Always talk with your doctor about any medications you are taking or thinking about taking and the possible side effects when mixed with other substances including cannabis.

General Cannabis Questions

What is cannabis?

  • Answer: Cannabis is a plant with many names- marijuana, weed, pot, cannabis, hash- that can have psychoactive characteristics and is consumed for medical and non-medical (recreational) purposes. The cannabis plant has hundreds of chemical compounds, including cannabinoids and terpenes.

Is there a difference between “cannabis” and “marijuana”?

  • Answer: No. The new legislation replaces references to marijuana with “cannabis” in the Maryland Code. Either term refers to flowering plants in the genus Cannabis.

What is THC?

  • Answer: The cannabis plant produces more than 100 different cannabinoids, which are compounds that can have different effects on the mind and body. Tetrahydrocannabinol known as “THC” and cannabidiol known as “CBD” are the most common. THC is known for its psychoactive effects (a feeling of being high). There are different forms of THC, including delta-9-THC, traditionally found in most cannabis products. However, other forms of THC, such as delta-8-THC and delta-10-THC can also be found in cannabis plants and will be included in the regulated market as part of this legislation.

What is CBD?

  • Answer: CBD, or cannabidiol, is the second most prevalent cannabinoid in cannabis. Unlike THC, CBD does not cause a “high” or psychoactive effect by itself.

What is hemp?

  • Answer: Hemp refers to varieties of cannabis plants that contain 0.3% or less delta-9-THC. The hemp plant has various industrial uses, as well as can be made into consumable products derived from hemp. The new adult-use legislation regulates consumable and inhalable intoxicating hemp products with other cannabis products, while exempting non-intoxicating products, such as CBD edibles, lotions, and tinctures.


  1. ​1 State Medical Cannabis Laws (
  2. 2 Teens | Health Effects | Cannabis | CDC
  3. ​9 National Academies of Sciences, Engineering, and Medicine. The health effects of cannabis and cannabinoids: the current state of evidence and recommendations for research. Washington, DC: The National Academies Press; 2017.
  4. 10 Valkow ND, Swanson JM, Evins AE, et al. Effects of cannabis use on human behavior, including cognition, motivation, and psychosis: a review. JAMA Psychiatry. 2016;73(3):292-297
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  6. 12 Wang X, Derakhshandeh R, Liu J, et al. One minute of cannabis secondhand smoke exposure substatially impairs vascular endothelial function Journal of the American Heart Association. 2016;5(8):e003858.
  7. 13 National Academies of Sciences, Engineering, and Medicine. The health effects of cannabis and cannabinoids: the current state of evidence and recommendations for research. Washington, DC: The National Academies Press; 2017
  8. 14 Moir D, Rickert WS, Levasseur G, et al. A comparison of mainstream and sidestream cannabis and tobacco cifatette smoke produced under two machine smoking condition Chemical Research in Toxicology. 2008;21(2);494-502
  9. 15 Yurasek AM, Aston ER, Metrik J. Co-use of alcohol and cannabis: A review. Current Addiction Reports. 2017;4(2): 184-193
  10. 16 Meier E, Hatsukami DK. A review of the additive health risk of cannabis and tobacco co-use. Drug and Alcohol Dependence. 2016;166:6-12
  11. ​17 Antoniou T, Bodkin J, Ho JM. Drug interactions with cannabinoids. CMAJ. 2020; 192(9):E206.​

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