Can I take Hydroxocobalamin and Lipitor together?
Drug interaction guide
Originally published 25 Jan 2026
Meets Patient’s editorial guidelines
- DownloadDownload
- Share
- Language
- Discussion
- Audio Version
- Add to preferred sources on Google
There are no known interactions between hydroxocobalamin (Vitamin B12) and Lipitor (atorvastatin). It is safe to take these two medications together.
Why this happens
These medications are processed by different pathways in the body. Hydroxocobalamin is a synthetic form of Vitamin B12 used to treat deficiencies, while Lipitor is a statin used to lower cholesterol. They do not interfere with each other's absorption, metabolism, or effectiveness.
What you should do
You can continue to take both medications as prescribed by your doctor. It is helpful to take them at the same time each day to help you remember, though they do not need to be taken together for them to work. If you experience any new or unusual muscle pain while taking Lipitor, you should always inform your doctor, regardless of other supplements you are taking.
Important precautions
Pregnancy
You must not take Lipitor if you are pregnant or planning to become pregnant, as it may harm the unborn baby. Use effective contraception while taking it.
Muscle problems - Lipitor
Contact your doctor immediately if you experience unexplained muscle pain, tenderness, or weakness. This is particularly important if you also feel unwell or have a high temperature.
Hypokalaemia (low potassium)
When starting treatment for severe vitamin B12 deficiency, your potassium levels can drop rapidly as your body produces new red blood cells. This can be dangerous for your heart and may require monitoring by your doctor.
Food and drink warnings
Alcohol
It is best to avoid or strictly limit alcohol while taking these medicines. For Lipitor, regular heavy drinking increases your risk of liver problems and muscle damage. For Hydroxocobalamin, heavy alcohol consumption can interfere with the absorption of B12 and may worsen the underlying deficiency being treated.
Grapefruit and Grapefruit Juice
You should avoid drinking large quantities of grapefruit juice (more than 1.2 litres a day) or eating grapefruit while taking Lipitor. Grapefruit contains compounds that can increase the level of the medicine in your blood, which raises your risk of serious side effects, such as muscle damage (rhabdomyolysis).
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.
Patient picks for Drug interactions

Drug interactions checker
Can I take Metformin and Ibuprofen together?
Taking ibuprofen while on metformin can increase the risk of kidney problems and a rare but serious condition called lactic acidosis. Ibuprofen can also make metformin stay in your body longer, potentially increasing its side effects.

Drug interactions checker
Can I take Mounjaro and Paracetamol together?
Mounjaro may slow down how quickly your body absorbs paracetamol. This means it might take longer for the paracetamol to start working to relieve pain or reduce a fever. However, the total amount of medicine that gets into your system should remain the same.
Article history
The information on this page is written and peer reviewed by qualified clinicians.
Article also available in English, German, Spanish, French, Italian, Portuguese, Hindi, Hebrew, Arabic, and Swedish.
25 Jan 2026 | Originally published
Join the conversation
Share your thoughts or experiences with others in our patient communities.

Ask, share, connect.
Browse discussions, ask questions, and share experiences across hundreds of health topics.

Feeling unwell?
Assess your symptoms online for free
Sign up to the Patient newsletter
Your weekly dose of clear, trustworthy health advice - written to help you feel informed, confident and in control.
By subscribing you accept our Privacy Policy. You can unsubscribe at any time. We never sell your data.
More in drug interactions checker
- Can I take Amitriptyline and Tizanidine together?
- Can I take Amlodipine and Citalopram together?
- Can I take Aspirin and Diclofenac together?
- Can I take Aspirin and Ezetimibe together?
- Can I take Atorvastatin and Clarithromycin together?
- Can I take Atorvastatin and Paracetamol together?
- Can I take Bisoprolol and Trimbow together?
- Can I take CBD oil and Clozapine together?
- Can I take Chaga and Royal sun together?
- Can I take Citalopram and Simvastatin together?
- Can I take Clopidogrel and Naproxen together?
- Can I take Co-codamol and Omeprazole together?
- Can I take Cod liver oil and Losartan together?
- Can I take Colecalciferol and Esomeprazole together?
- Can I take Doxycycline and Ibuprofen together?
- Can I take Esomeprazole and Losartan together?
- Can I take Fluanxol and Venlafaxine together?
- Can I take Lercanidipine and Vitamin D3 together?
- Can I take Magnesium and Vitamin C together?
- Can I take Mirtazapine and Rosuvastatin together?