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Drug Interactions between buspirone and cannabis

This report displays the potential drug interactions for the following 2 drugs:

  • buspirone
  • cannabis

Interactions between your drugs

busPIRone cannabis (Schedule I substance)

Applies to: buspirone and cannabis

Using busPIRone together with cannabis (Schedule I substance) may increase side effects such as dizziness, drowsiness, confusion, and difficulty concentrating. Some people, especially the elderly, may also experience impairment in thinking, judgment, and motor coordination. You should avoid or limit the use of alcohol while being treated with these medications. Also avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medications affect you. Talk to your doctor if you have any questions or concerns. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Drug and food interactions

busPIRone food

Applies to: buspirone

You should avoid the use of alcohol while being treated with busPIRone. Alcohol can increase the nervous system side effects of busPIRone such as dizziness, drowsiness, and difficulty concentrating. Some people may also experience impairment in thinking and judgment. Patients receiving busPIRone should preferably avoid the consumption of large amounts of grapefruits and grapefruit juice. If this is not possible, the busPIRone dose should be taken at least 2 hours before or 8 hours after grapefruit or grapefruit juice. Large amounts of grapefruit and grapefruit juice may cause increased levels of busPIRone in your body. This can lead to increased adverse effects such as drowsiness. Talk to your doctor or pharmacist if you have any questions or concerns.

cannabis (Schedule I substance) food

Applies to: cannabis

Alcohol can increase the nervous system side effects of cannabis (Schedule I substance) such as dizziness, drowsiness, and difficulty concentrating. Some people may also experience impairment in thinking and judgment. You should avoid or limit the use of alcohol while being treated with cannabis (Schedule I substance). Do not use more than the recommended dose of cannabis (Schedule I substance), and avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medication affects you. Talk to your doctor or pharmacist if you have any questions or concerns.

Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

See Also

  • Buspirone Drug Interactions
  • Buspirone General Consumer Information
  • Cannabis Drug Interactions
  • Drug Interactions Checker
Drug Interaction Classification
These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.

Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some mixtures of medications can lead to serious and even fatal consequences.

A Moderate Drug Interaction exists between buspirone and cannabis. View detailed information regarding this drug interaction.

Buspirone Treatment for Marijuana Dependence

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
  • Study Details
  • Tabular View
  • Study Results
  • Disclaimer
  • How to Read a Study Record

Condition or disease Intervention/treatment Phase
Marijuana Dependence Drug: Buspirone Drug: Placebo Phase 4

Layout table for study information

Study Type : Interventional (Clinical Trial)
Actual Enrollment : 175 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Buspirone Treatment for Marijuana Dependence
Study Start Date : September 2009
Actual Primary Completion Date : June 2014
Actual Study Completion Date : March 2016

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information

Ages Eligible for Study: 18 Years to 65 Years (Adult, Older Adult)
Sexes Eligible for Study: All
Accepts Healthy Volunteers: No
  • Must meet DSM-IV criteria for marijuana dependence.
  • Must be between the ages of 18 and 65 years.
  • If female and of childbearing potential, must agree to use acceptable methods of birth control for the duration of the trial.
  • Must consent to random assignment, and be willing to commit to psychosocial behavioral and medication treatment.
  • Must be able to read and provide informed consent.
  • Women who are pregnant, nursing, or plan to become pregnant during the course of the study.
  • Must not have a history of or current psychotic disorder, bipolar disorder, or eating disorder.
  • Must not pose a current suicidal or homicidal risk.
  • Must not meet current criteria for major depression.
  • Must not have evidence or history of serious hematologic, endocrine, cardiovascular, pulmonary, renal, gastrointestinal or neurologic disease.
  • Must not require concomitant therapy with psychotropic medication.
  • Must not be currently dependent on other substances, with the exception of nicotine or caffeine.
  • Hypersensitivity to buspirone or any other product component.
  • Patients who, in the investigator’s opinion, would be unable to comply with study procedures or assessments, or would be unacceptable study candidates (e.g., poses threat to staff).

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Buspirone Treatment for Marijuana Dependence The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it