Medicines & Supplements A to Z > Coenzyme Q10 (Supplement)

Coenzyme Q10 (Supplement)

Last updated on 19/03/2021.

Overview   |   Dosage   |    Side Effects   |   Precautions  |   Tips  |   Where To Buy  

GENERIC NAME: Coenzyme Q10, Ubiquinone,  Ubidecarenone


BRAND NAME(S) IN HONG KONG: Blackmores, Cardiwell Omega Q10, Equinon, Meiriki Japan Heart Support Factor, Now Foods, Swanson, Trunature

DRUG CLASS: Coenzyme 

USED FOR: Supplementation in people with heart diseases, Parkinson’s disease, high blood pressure, and migraines


AVAILABLE DOSAGE FORMS: 200mg, 400mg, 600mg (softgels)

What is Coenzyme Q10 for?

Coenzyme Q10 is a substance naturally produced by our bodies. It is important for energy production and has antioxidant effects. People with certain conditions including heart diseases, Parkinson’s diseases or taking statins might have reduced levels of Coenzyme Q10. Coenzyme Q10 supplement is hence believed to be beneficial to these groups of people. Moreover, Coenzyme Q10 might also help reduce blood pressure, migraines. There is also evidence showing that having sufficient levels of Coenzyme Q10 after heart surgeries can reduce risks of complications.

How to use it?

Coenzyme Q10 is taken by mouth as tablets. The usual adult dose is 60-200 mg daily in two to three doses. If you are currently having conditions that might lead to a low level of Coenzyme Q10, your doses might increase to 400 mg. For specific dosages, you should refer to the product label.

What are the side effects of Coenzyme Q10?

Side effects of taking Coenzyme Q10 supplement are mild and can include insomnia and indigestion. Advise your doctor or pharmacist before taking Coenzyme Q10 as it can interact with a number of drugs.

Who should not take Coenzyme Q10?

There are no reports on who should avoid taking Coenzyme Q10 supplements. 

Pharmacist Tips:

It is always advised to get the nutrients you need from natural sources before taking any supplements. For Coenzyme Q10, you can get them by having red meats, oily fish, nuts and seeds, whole grains.

Common dosing schedule:
Take Coenzyme Q10 supplements as per production instructions.

This schedule is for reference only, adjustments may be made according to individual needs.

Some common medications Coenzyme Q10 may interact with:
– Antihypertensives, such as angiotensin II receptor blockers (e.g. Losartan), angiotensin-converting enzyme inhibitors (e.g. Captopril), calcium channel blockers (e.g. Nifedipine)
– Antidiabetics, e.g. Gliclazide, Insulin, Metformin 
– Cholesterol-lowering drugs, e.g. Simvastatin, Rosuvastatin
– Some types of chemotherapy

Please notify your doctor or pharmacist if you are taking the above medication, dosage adjustments might be needed.

Where to buy Coenzyme Q10 in Hong Kong?

In Hong Kong, Coenzyme Q10 supplements can be purchased without a prescription from any retail outlet in Hong Kong. This includes grocery stores, convenience stores, medicine shops, and pharmacies. It can also be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health. 

For more information about drug names and ingredients, you can visit Hong Kong’s Drug Office at

Need more information?

For detailed information about the use of Coenzyme Q10 in children, pregnancy and breastfeeding, and for questions about drug interactions, please check with your pharmacist or doctor.

Disclaimer: our goal is to provide you with the most relevant drug information and common dosage for Hong Kong. This information does not constitute medical advice. For specific treatment recommendations and advice, always discuss with your doctor or pharmacist, and follow the instructions included with your specific medicine.