Beta-lactamase inhibitor
Clavulanate and cannabis (marijuana, THC)
As cannabis becomes legal or decriminalised in more jurisdictions, the practical question of combining it with prescription medication comes up regularly. Clavulanate (Clavulanate) and cannabis share several pharmacological pathways, and the combination at 500/125mg, 875/125mg, 1000/62.5mg is not automatically benign even where both are legal.
How cannabis affects Clavulanate
THC and other cannabinoids are metabolised partly by hepatic CYP enzymes, including CYP3A4 — the same pathway used by many Beta-lactamase inhibitor medications. Frequent cannabis use can shift the metabolism of Clavulanate mildly. THC also has cardiovascular effects (increased heart rate, blood pressure changes) and central nervous system effects that can stack with Clavulanate's side-effect profile.
Practical guidance
Occasional moderate cannabis use is unlikely to cause clinically meaningful problems for most adults on Clavulanate at 500/125mg, 875/125mg, 1000/62.5mg. Heavy daily use, edibles with high THC content, or cannabis combined with alcohol substantially raise the risk of dizziness, hypotension, impaired judgement and amplified side effects from Clavulanate. According to the prescribing information, the full list of recreational substances should be disclosed to the prescriber.
Frequently asked questions
Can I use cannabis while taking Clavulanate? ▾
For most adults at 500/125mg, 875/125mg, 1000/62.5mg, occasional moderate cannabis is tolerated, but heavy daily use is not advised because of metabolic and additive cardiovascular effects with Clavulanate. The safe practice is to mention it to the prescriber.
Does CBD interact with Clavulanate? ▾
CBD inhibits several CYP enzymes including CYP3A4, which can raise plasma levels of medications that go through that pathway. For Clavulanate specifically, this depends on whether Clavulanate uses CYP3A4. Daily high-dose CBD products warrant a pharmacist check.
Products containing Clavulanate
More on Clavulanate
- With alcoholClavulanate and alcohol — is it safe to drink?
- With foodShould Clavulanate be taken with food?
- Side effectsClavulanate side effects: common, rare and warning signs
- Dosage guideClavulanate dosage guide: how much to take and when
- OnsetHow fast does Clavulanate start working?
- DurationHow long does Clavulanate last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.