Can I take Fluanxol and Vitamin D together?

Why this happens

Fluanxol is an antipsychotic medication processed primarily by the liver, while Vitamin D is a fat-soluble vitamin involved in calcium regulation. They do not share the same metabolic pathways and do not interfere with how the other works in the body.

What you should do

You can continue taking both as prescribed. As with any supplement, it is always a good idea to inform your doctor or pharmacist about everything you are taking to ensure your records are up to date.

Important precautions

Parkinson's disease

Fluanxol can significantly worsen the symptoms of Parkinson's disease and should generally be avoided.

Heart rhythm disorders (Long QT syndrome)

Fluanxol can affect your heart rhythm. You must tell your doctor if you have a history of heart rhythm problems or are taking other medicines that affect the heart.

Hypercalcaemia (high blood calcium)

Do not take Vitamin D if you have high levels of calcium in your blood or urine, as this can lead to serious kidney damage.

Food and drink warnings

Alcohol

It is best to avoid or strictly limit alcohol while taking Fluanxol. Combining alcohol with this medicine can significantly increase drowsiness and dizziness, and may impair your coordination and judgement. It can also increase the risk of serious side effects like breathing difficulties.

Caffeine (Coffee, Tea, Energy Drinks)

Caffeine can interfere with how Fluanxol works. High amounts of caffeine may reduce the effectiveness of the medicine or worsen symptoms of restlessness and anxiety. Try to keep your caffeine intake consistent and moderate.

High-fat meals

Vitamin D is a fat-soluble vitamin. It is best absorbed when taken with a meal that contains some fat (such as dairy, eggs, or avocado).

Using other medicines

Taking multiple medicines? Our Medicines Interaction Checker helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.

Disclaimer

This information is for general educational purposes only and should not be relied upon as a substitute for professional medical advice. Always consult your GP, pharmacist, or another qualified healthcare professional before making decisions about your medications. Individual circumstances may vary, and only a healthcare professional who knows your medical history can provide personalised guidance.