Magnesium

Overview

What is Magnesium?   

Magnesium (鎂) is a vital mineral crucial for many bodily functions, including muscle and nerve function, blood sugar control, and blood pressure regulation. It also plays a key role in producing protein, bone mineralisation, and DNA synthesis. 

Global Name

• Generic name:  Magnesium
• Brand name: Mag-Ox, Slow-Mag, Mag-Tab SR, Mag 64

Usage

What is Magnesium used for? 

Magnesium is used to: 

• Prevent and treat magnesium deficiency in the body. 

• Support muscle and nerve function. 

• Maintain heart rhythm. 

• Strengthen bones. 

• Regulate blood glucose levels. 

• Enhance overall cardiovascular health. 

How do you use Magnesium? 

Availability: 
Magnesium is available in various forms including tablets, capsules, powders, and as an ingredient in multivitamin supplements. 

Dosage information: 

• Adults: The recommended dietary allowance (RDA) for adults varies from 310 mg to 420 mg per day depending on age and gender. 

• Children: The RDA varies from 80 mg to 240 mg per day, depending on age. 

• Elderlies: The elderly may require the higher end of the adult dosage range to counteract common deficiencies. 

Are the following suitable to take the drug: Children, adults, elderlies? 

• Children: Suitable, with dosages adjusted for age. 

• Adults: Suitable for all adults. 

• Elderlies: Particularly beneficial for elderlies to help reduce the risk of osteoporosis and heart diseases. 

Is there anyone who can’t take Magnesium? 

• Children: Generally safe in appropriate dosages. 

• Adults: Adults with severe renal impairment should avoid high doses of magnesium without medical supervision. 

• Elderlies: Safe under recommended dosages. 

• Pregnancy: Safe when used in normal doses but should be discussed with a healthcare provider. 

• Lactation: Safe and beneficial but should be discussed with a healthcare provider. 

Allergies: Magnesium is generally well tolerated, but people with known hypersensitivity to magnesium should avoid it. 

Warnings and precautions: Excessive magnesium intake can lead to gastrointestinal issues such as nausea/vomiting, flatulence and diarrhea, and in severe cases, more serious symptoms like respiratory depression and cardiac arrest. 

Interactions and contraindications of the drug: 

 Magnesium can interact with several types of medications, including diuretics, antibiotics, and osteoporosis medications. It is crucial to manage the intake times to avoid interactions. 

Side Effects

Common side effects include stomach upset and diarrhea. High doses can lead to more serious issues such as kidney problems. 

Pharmacist Tips

• Storage information: Store magnesium supplements in a cool, dry place away from direct sunlight. 

• Handling instructions: Follow the label instructions for optimal benefits and minimal side effects. 

Availability

Where is Magnesium available in Hong Kong?

Magnesium is an over-the-counter (OTC) supplement that can be sold without a prescription. It is found in all chain drug stores, including Mannings and Watsons. 

FAQs

What are the benefits of Magnesium?  

Magnesium helps improve bone health, supports muscle and nerve function, and aids in managing diabetes and cardiovascular health. 

Can taking Magnesium help with stress and anxiety? 

Yes, magnesium has been shown to have a calming effect on the nervous system, making it beneficial for managing stress and anxiety. Please consult a medical professional if planning to take supplemental magnesium. 

How much Magnesium should I take?  

It is best to adhere to the recommended dietary allowances unless otherwise directed by a healthcare provider.