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CBD Oil + Citalopram

MODERATE — Monitor Closely

🟡 MODERATE — CBD may increase Citalopram levels. QT prolongation risk at high levels.

Evidence level: MODERATE

What this interaction means

CBD may increase citalopram levels. Since citalopram can prolong the QT interval at high levels, this combination needs monitoring.

How it works (mechanism)

CBD inhibits CYP2D6 and CYP3A4, potentially increasing citalopram levels and QT prolongation risk.

Practical advice

Start CBD at low doses. Be aware of citalopram's dose-dependent QT risk. Inform your doctor, especially if on high-dose citalopram (>20mg).

Timing

Take Citalopram at the same time each day as prescribed. CBD Oil can be taken at any convenient time — morning with breakfast is most common. Some botanicals (St. John's Wort especially) have serotonergic activity and must NOT be combined with SSRIs. If you notice increased drowsiness or agitation, shift the botanical to a different time or discuss discontinuation with your prescriber.

Risk factors

High-dose citalopram (>40mg), heart conditions, electrolyte imbalances

Symptoms to watch for

Palpitations, fainting, irregular heartbeat, dizziness

What to tell your doctor

Inform your doctor about CBD, especially if citalopram dose is above 20mg

Safer alternatives

Consider talking to your doctor about adjusting your antidepressant dose rather than adding CBD Oil. Safer supplement options for mood support include magnesium glycinate, omega-3 fish oil, or vitamin D3 — all with strong evidence and minimal drug interactions.

Frequently asked questions

Can I take CBD Oil and Citalopram together?

CBD may increase citalopram levels. Since citalopram can prolong the QT interval at high levels, this combination needs monitoring.

When should I take CBD Oil vs Citalopram?

Take Citalopram at the same time each day as prescribed. CBD Oil can be taken at any convenient time — morning with breakfast is most common. Some botanicals (St. John's Wort especially) have serotonergic activity and must NOT be combined with SSRIs. If you notice increased drowsiness or agitation, shift the botanical to a different time or discuss discontinuation with your prescriber.

What symptoms should I watch for if I combine CBD Oil and Citalopram?

Palpitations, fainting, irregular heartbeat, dizziness

Are there safer alternatives to combining CBD Oil with Citalopram?

Consider talking to your doctor about adjusting your antidepressant dose rather than adding CBD Oil. Safer supplement options for mood support include magnesium glycinate, omega-3 fish oil, or vitamin D3 — all with strong evidence and minimal drug interactions.

What should I tell my doctor about taking CBD Oil and Citalopram?

Inform your doctor about CBD, especially if citalopram dose is above 20mg

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