CBD side effects and medicine interactions

CBD is not risk-free. Unwanted effects and medicine interactions are possible, and risk can depend on dose, formulation, health conditions and other medicines.

Seek individual advice

An appropriately qualified health professional can review prescription medicines, over-the-counter products and supplements together. Do not stop or change a prescribed medicine based on website content.

Before discussing CBD

• Prepare a current list of medicines and supplements.
• Bring the exact product label and ingredient list.
• Bring cannabinoid and batch documentation where available.
• Mention pregnancy, breastfeeding, liver conditions, planned surgery or other relevant circumstances.

When to seek help

Ask the prescribing or supplying professional what unwanted effects require attention and what to do if they occur. For severe symptoms or an emergency, contact emergency services rather than waiting for online support.

Marketing is not safety evidence

Terms such as natural, organic or non-intoxicating do not establish that a product is safe for a particular person.

Read ingredients and formulations and our CBD FAQ.

General information only. Last reviewed: 24 June 2026.