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Magnesium lactate

Generic name: magnesium lactate [ mag-NEE-zee-um-LAK-tate ]
Brand name: Mag-Tab SR
Dosage form: oral tablet, extended release (84 mg)
Drug class: Minerals and electrolytes

Medically reviewed by Drugs.com on Nov 29, 2024. Written by Cerner Multum.

What is magnesium lactate?

Magnesium lactate is a naturally occurring mineral that is needed in the body to support the function of the heart, nervous system, and digestive system.

Magnesium lactate is used as a mineral supplement to treat magnesium deficiency.

Magnesium lactate may also be used for purposes not listed in this medication guide.

Magnesium lactate side effects

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Common side effects of magnesium lactate may include:

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Warnings

Follow all directions on your medicine label and package. Ask a doctor or pharmacist if it is safe for you to take magnesium lactate if you have other medical conditions.

Before taking this medicine

You should not use magnesium lactate if you are allergic to it.

Ask a doctor or pharmacist if it is safe for you to take this medicine if you have other medical conditions, especially:

Ask a doctor before using this medicine if you are pregnant or breast-feeding. Your dose needs may be different during pregnancy or while you are nursing.

Your dose needs may be different during pregnancy or while you are breast-feeding.

Do not give this medicine to a child without medical advice.

How should I take magnesium lactate?

Use exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.

Magnesium lactate may be taken with food if it upsets your stomach or causes diarrhea.

Take the medicine at the same time each day.

Do not crush or chew an extended-release tablet. Swallow it whole. To make swallowing easier, you may break the tablet in half.

Magnesium lactate may be only part of a complete program of treatment that also includes a special diet. Follow the diet plan created for you by your doctor or nutrition counselor. Get familiar with the list of foods you should eat to make sure you get enough magnesium in your diet. This may include green leafy vegetables, peas, beans, nuts, and whole grain cereals.

The recommended dietary allowance of magnesium increases with age. Follow your healthcare provider's instructions. You may also consult the Office of Dietary Supplements of the National Institutes of Health, or the U.S. Department of Agriculture (USDA) Nutrient Database (formerly "Recommended Daily Allowances") listings for more information.

Use magnesium lactate regularly to get the most benefit. Get your prescription refilled before you run out of medicine completely.

Do not share magnesium lactate with another person.

Store at room temperature away from moisture, heat, and light. Keep the bottle tightly closed when not in use.

Magnesium lactate dosing information

Usual Adult Dose for Dietary Supplement:

1 to 2 caplets every 12 hours with food

What happens if I miss a dose?

Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Overdose symptoms may include confusion, dizziness, extreme drowsiness, slow heart rate, muscle weakness, or loss of consciousness.

What should I avoid while taking magnesium lactate?

Avoid eating foods that are high in fat. High-fat foods can make it harder for your body to absorb magnesium lactate.

Do not take any other vitamin or mineral supplements that contain magnesium unless your doctor has told you to.

What other drugs will affect magnesium lactate?

Other drugs may interact with magnesium lactate, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell each of your health care providers about all medicines you use now and any medicine you start or stop using.

Does magnesium lactate interact with my other drugs?

Enter medications to view a detailed interaction report using our Drug Interaction Checker.

Popular FAQ

When is the best time to take magnesium, morning or night?

The best time of day to take magnesium depends on your health goals and individual needs. While timing can enhance specific benefits, maintaining a consistent routine is more important for stable magnesium levels in the body. Many studies show the full benefits of magnesium occur after long-term use. Continue reading

Should I take magnesium with or without food?

It is generally recommended to take magnesium with food to help lower the chances for an upset stomach and increase the absorption of the mineral into your body. If you take magnesium on an empty stomach, you increase the risk for common stomach side effects like diarrhea, nausea and abdominal cramping. Continue reading

Does magnesium help with headaches and migraines?

The current evidence supports a role for magnesium in both the prevention and treatment of headache disorders, particularly migraines. Multiple clinical trials and meta-analyses demonstrate that magnesium supplementation can reduce the frequency and intensity of migraine attacks, while intravenous magnesium shows promise for acute treatment. Continue reading

Further information

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.