Herb & supplement monograph

Cannabigerol (cbg) Drug Interactions, Uses, Effectiveness, Safety & More

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS ·Updated June 2026

What is this page for?

First and foremost: how Cannabigerol (cbg) interacts with medications. The heart of this page is the interaction list — every drug Cannabigerol (cbg) is known to interact with, and how serious each one is.

But these pages have grown well beyond that into a full monograph — what Cannabigerol (cbg) is, what people use it for and how strong the evidence is, its safety and side effects, and answers to the questions we’re asked most — written and reviewed by the clinical staff at HelloPharmacist. It’s educational information from our licensed clinical databases, not medical advice, and we don’t sell or endorse products. Our editorial policy

Check Cannabigerol (cbg) against your medication

Add one medication

✓ Supplement

Cannabigerol (cbg)

1 Your medication

Start typing any prescription or over-the-counter drug name.

Reviewed by licensed pharmacists Sourced from Natural Medicines

On this page

Cannabigerol (cbg) Drug Interactions: The Bottom Line

From the HelloPharmacist Editorial Team · Updated July 2026

Based on the available evidence, the overall risk of a clinically significant Cannabigerol (cbg) drug interaction appears low for most people. None of the listed interactions are rated major, and the concern behind them rests on animal research rather than human studies.

Interactions deserving the most attention

The interaction that deserves the most attention involves blood pressure medications. In animal studies, injected cannabigerol lowered blood pressure, so in theory combining it with antihypertensive drugs could make blood pressure drop too far. This has not been shown in humans, and it is unclear whether taking cannabigerol by mouth has the same effect. Still, since blood pressure treatment is closely monitored, people on these medicines should be aware of the possibility of added dizziness or lightheadedness.

What the rest of the list means

Although a long list of medications is flagged, nearly all of them trace back to this single theoretical concern about blood pressure. A large number of listed interactions does not mean each combination is harmful; it mostly reflects one predicted effect applied across an entire class of medicines. So far, no clinically meaningful problems from these combinations have been documented in people.

Check your medications against Cannabigerol (cbg)

Based on HelloPharmacist’s Cannabigerol (cbg) interaction data and reviewed under our editorial standards.

Interaction report

Drugs that interact with Cannabigerol (cbg)

172 medications have a known interaction with Cannabigerol (cbg), graded by severity. Select any drug for the full evidence-based detail.

Don’t want to scroll the list? Just ask.

Tell us the medications you take and we’ll check each one against Cannabigerol (cbg) using our pharmacist-reviewed interaction data.

AI summaries are generated from our Cannabigerol (cbg) interaction data for education only — always confirm with your pharmacist. How we use AI

2,830 drugs

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 Cannabigerol (cbg) 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 Cannabigerol (cbg) affects

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

All 1 drug category Cannabigerol (cbg) interacts with

Antihypertensive Drugs

Theoretically, taking cannabigerol with antihypertensive drugs might increase the risk of hypotension.
Animal research shows that an intraperitoneal injection of cannabigerol lowers blood pressure. The mechanism of action may be related to alpha-2-adrenoreceptor activity. The effect of oral intake of cannabigerol is unclear and this has not been shown in humans.

Likelihood Possible Evidence D

Monograph

Cannabigerol (cbg): Uses, Safety & Side Effects

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Reviewed June 2026 ·

The bottom line

Cannabigerol (CBG) is a minor cannabinoid from the cannabis (hemp) plant that is marketed for anxiety, pain, and inflammation, but human research is very limited and most claims rest on laboratory and animal studies. It appears to be generally well tolerated in early reports, but its long-term safety, quality, and dosing are not well established. Talk to your pharmacist or doctor before trying it, especially if you take other medicines or are pregnant or breastfeeding.

Scientific name: Cannabis sativa
Family: Cannabaceae
Part used: Flowers and aerial parts (extracted cannabinoid)
Common forms: Oils and tinctures, capsules, gummies, vapes, topicals

People commonly use it for

Anxiety and stress
Pain and inflammation
Sleep support
Focus and mood
Digestive discomfort

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

Safety at a glance

OverallUse caution

Early reports suggest it is usually well tolerated, but high-quality human safety data are lacking.

PregnancyBest avoided

Cannabis-derived products are not considered safe in pregnancy; avoid use.

BreastfeedingBest avoided

Cannabinoids can pass into breast milk, so avoid CBG while breastfeeding.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Jump to a section

Overview

Cannabigerol (CBG) is one of many natural compounds called cannabinoids found in the cannabis plant (Cannabis sativa), which includes both hemp and marijuana varieties. CBG is sometimes called the "mother cannabinoid" because the plant uses its acid form as a building block to make other cannabinoids like THC and CBD. By the time the plant is fully grown, only small amounts of CBG usually remain, which is why it is called a "minor" cannabinoid.

Most CBG products sold today are made from hemp, which is grown legally in many places. CBG is commonly sold as oils, tinctures, capsules, gummies, vape products, and skin creams. People take it hoping to ease stress, pain, or trouble sleeping. Unlike THC, CBG is not known to cause a "high."

Because CBG is newer to the market than CBD, there is much less research on it, and product quality can vary widely from brand to brand.

How it works

CBG is thought to interact with the body's endocannabinoid system, a network of receptors and chemical messengers that helps regulate things like mood, pain, appetite, and inflammation. CBG may bind weakly to the cannabinoid receptors (called CB1 and CB2) found throughout the body.

Laboratory research also suggests CBG may affect other targets, such as certain serotonin and adrenaline-related receptors, which could in theory influence mood and pain. Some lab studies report antioxidant and anti-inflammatory effects, and a possible ability to slow the growth of some bacteria.

It is important to stress that these are mostly proposed mechanisms based on cell and animal studies. How CBG actually behaves in the human body, and at what doses, is still not well understood.

Effectiveness

Does Cannabigerol (cbg) work?

Here’s what the research actually shows for each use — graded by Natural Medicines and reviewed by Dr. Brian Staiger, PharmD.

Evidence overview · 10 uses evaluated

10 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 Cannabigerol (cbg), current evidence isn’t strong enough to rate any specific use. The conditions it has been studied for are listed below.

Also studied for 10 conditions — evidence insufficient to rate

Insufficient Reliable Evidence To Rate Anxiety