Drug interactions
Cannabidiol + Pioglitazone
Severity: Moderate
Cannabidiol and Pioglitazone: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Pioglitazone is metabolized partly by CYP2C8, and cannabidiol can inhibit this enzyme in vitro. Raised pioglitazone exposure could increase dose-related effects such as fluid retention, edema and hypoglycemia with other agents.
What this interaction means in plain words
Cannabidiol and Pioglitazone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Cannabidiol belongs to Central Nervous System; Pioglitazone belongs to Endocrine.
Why it happens
Cannabidiol inhibits CYP2C8, reducing pioglitazone metabolism.
What to do
Monitor for edema, weight gain and glycemic changes after starting cannabidiol, and reduce the pioglitazone dose if adverse effects appear.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Pioglitazone
Other interactions of Cannabidiol
- Cannabidiol + Phenytoin Major
- Cannabidiol + Sodium valproate Major
- Cannabidiol + Tacrolimus Major
- Abiraterone + Cannabidiol Moderate
- Alogliptin-pioglitazone + Cannabidiol Moderate
- Amiodarone + Cannabidiol Moderate
Frequently asked questions
Can I take Cannabidiol with Pioglitazone?
MediHelp rates the interaction as moderate. Cannabidiol and Pioglitazone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Pioglitazone is metabolized partly by CYP2C8, and cannabidiol can inhibit this enzyme in vitro. Raised pioglitazone exposure could increase dose-related effects such as fluid retention, edema and hypoglycemia with other agents.
How serious is the interaction between Cannabidiol and Pioglitazone?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for edema, weight gain and glycemic changes after starting cannabidiol, and reduce the pioglitazone dose if adverse effects appear.
What other medicines interact with Pioglitazone?
MediHelp also lists interactions of Pioglitazone with, for example, Insulin aspart-insulin aspart protamine, Insulin aspart, Insulin degludec-insulin aspart. The full list is on the Pioglitazone page.
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