Ubiquinone (Coenzyme Q10), Oral

What are other names for this medicine?

Type of medicine: nutritional supplement

Generic and brand names: ubiquinone, oral; ubidecarenone, oral; Coenzyme Q10; CoQ10 (There may be other brand names for this medicine.)

What is this medicine used for?

This vitaminlike substance helps cells convert nutrients to energy. Ubiquinone is made by the body and is present in many common foods.

What should my healthcare provider know before I take this medicine?

Before taking this medicine, tell your healthcare provider if you have ever had:

• an allergic reaction to any medicine
• a bleeding or blood clotting disorder
• diabetes

Females of childbearing age: Tell your healthcare provider if you are pregnant or breast-feeding.

How do I take it?

This medicine comes in various forms, including chewable wafers, capsules, and tablets. You can buy these products without a prescription. Take this medicine exactly as directed. If your healthcare provider has not given you specific instructions, follow the directions that come with the medicine package. Do not take more or take it longer than directed. Chew the wafers thoroughly, and then drink a glass of water. Swallow the tablets or capsules whole with water.

If you miss a dose, take it as soon as you remember unless it is almost time for the next scheduled dose. In that case, skip the missed dose and take the next one as directed. Do not take double doses. If you are not sure of what to do if you miss a dose, or if you miss more than one dose, contact your healthcare provider.

What if I overdose?

Symptoms of an acute overdose have not been reported.

What should I watch out for?

Diabetics: This medicine may affect your blood sugar level and change the amount of insulin or other diabetes medicines you may need. Talk to your healthcare provider about this.

What are the possible side effects?

Along with its needed effects, your medicine may cause some unwanted side effects. Some side effects may be very serious. Some side effects may go away as your body adjusts to the medicine. Tell your healthcare provider if you have any side effects that continue or get worse.

Life-threatening (Report these to your healthcare provider right away. If you cannot reach your healthcare provider right away, get emergency medical care or call 911 for help): Allergic reaction (hives; itching; rash; trouble breathing; tightness in your chest; swelling of your lips, tongue, and throat).

Other: Nausea, diarrhea, loss of appetite, decreased blood sugar, and rash.

What products might interact with this medicine?

When you take this medicine with other medicines, it can change the way this or any of the other medicines work. Nonprescription medicines, vitamins, natural remedies, and certain foods may also interact. Using these products together might cause harmful side effects. Talk to your healthcare provider if you are taking:

• beta blockers such as atenolol (Tenormin), acebutolol (Sectral), betaxolol (Kerlone), carteolol, bisoprolol (Zebeta), pindolol, metoprolol (Lopressor, Toprol XL), timolol, sotalol (Betapace), nadolol (Corgard), propranolol (Inderal), labetalol (Normodyne, Trandate), and carvedilol (Coreg)
• cholesterol-lowering medicines (statins) such as lovastatin (Mevacor), pravastatin (Pravachol), simvastatin (Zocor) rosuvastatin (Crestor), and atorvastatin (Lipitor)
• doxorubicin
• herbal remedies such as chromium, garlic, gymnema, fenugreek, ginseng, and eucalyptus
• insulin and oral diabetes medicines such as chlorpropamide (Diabinese), glipizide (Glucotrol), and glyburide (DiaBeta, Glynase, Micronase)
• medicines to treat Parkinson's disease such as bromocriptine (Parlodel), levodopa/carbidopa (Sinemet), pergolide (Permax), pramipexole (Mirapex), ropinirole (Requip), cabergoline (Dostinex), and entacapone (Comtan)
• warfarin (Coumadin)

Keep a list of all your medicines with you. List all the prescription medicines, nonprescription medicines, supplements, natural remedies, and vitamins that you take. Be sure that you tell all healthcare providers who treat you about all the products you are taking.

How should I store this medicine?

Store this medicine at room temperature. Keep the container tightly closed. Protect it from heat, high humidity, and bright light.

This advisory includes selected information only and may not include all side effects of this medicine or interactions with other medicines. Ask your healthcare provider or pharmacist for more information or if you have any questions.

Ask your pharmacist for the best way to dispose of outdated medicine or medicine you have not used. Do not throw medicine in the trash.

Keep all medicines out of the reach of children.

Do not share medicines with other people.