Magnesium hydroxide is nothing more than hydrated magnesium oxide and is widely used in industry to refine sugar and in processes to extract certain metals. However, it has several properties that make it ideal for medicinal use to combat internal disorders or skin alterations. It is best known for its liquid presentation, commonly called milk of magnesia, although it also exists in pills.
It is essential not to self-medicate and consult with a registered before consuming this drug, even though they can be obtained without a prescription. If you are still wondering what magnesium hydroxide is for, at FastlyHealwe offers you a lot of information.
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Magnesium hydroxide: what is it for?
Generally, it is used as an antacid by those who suffer from various digestive disorders and have heartburn. This drug has a fundamental substance responsible for neutralizing acidity and ending indigestion that causes it, which can be very annoying.
Depending on the dose and the time it is ingested, in addition to helping with stomach upset, magnesium hydroxide may be recommended for people who suffer from:
- Peptic ulcer
- Hiatal hernia
- Esophagitis
- Gastric hyperacidity
- Gastritis
Magnesium hydroxide can also be used as a laxative to combat constipation, but it should be consumed with caution in this case.
On the other hand, the liquid presentation of magnesium hydroxide or milk of magnesia is usually applied externally for beauty treatments, especially to remove excess oil from the face and reduce its shine. It is also ideal for treating:
- Acne
- Sunburn
- Dandruff
- Reduce dark areas
- Skin irritations
- As an antiperspirant
Magnesium hydroxide: uses and how to take it
Magnesium hydroxide as an antacid
To consume this antacid, it is recommended to do it orally, following the instructions that it has on its label. The most common presentations are tablets or liquid, so it is essential to consult with a doctor to know precisely the dose for each person. The tablets should be chewed thoroughly; they never have to be swallowed whole, and, after having ingested them completely, it is important to hydrate well, so you should drink a glass of water.
If the specialist recommends the liquid presentation, the container must be shaken appropriately well in advance. The drug is thoroughly mixed at consumption and can be fused with milk or water.
Antacids are often taken after each meal; however, on some occasions, it may be before this, depending on the doctor’s instructions. On the other hand, you should always take the correct dose at regular intervals.
Milk of Magnesia for Topical Use
For external use, it is necessary to first thoroughly wash the area of the body in which it is to be used. After drying it, apply a few drops with the help of a cotton ball the liquid magnesium hydroxide, previously shaken. Since its excess can dry out the skin, it is advisable not to use it more than 2 or 3 times a week, preferably on alternating days.
Magnesium hydroxide: side effects and contraindications
Consumption of magnesium hydroxide can have some side effects, which should be reported to a doctor as soon as possible. Among them, allergic reactions stand out, such as:
- Swelling in the face
- Rashes
- Itch
- Other changes in the tongue or lips.
Other side effects can be:
- Joint discomfort
- Migraines
- Sickness
- Vomiting
- Irritability
- Confusion
- Feeling unusual weakness
Whenever you feel these symptoms, you should inform a professional that you are consuming hydrated magnesium oxide. Other milder side effects do not require urgent medical attention, but they should be reported mainly if they persist or become severe. Among them are:
- Diarrhea
- Hemorrhoids
- Constipation
- Feel a chalky taste in your mouth
Precautions and recommendations for the use of magnesium hydroxide
Suppose you suffer from heartburn and want to ingest magnesium hydroxide. In that case, you must take specific preventive measures, such as telling your doctor or pharmacist if you suffer from an allergy to any medication or if you find yourself ingesting any regularly, including supplements. And vitamins.
Likewise, it is essential that the professional is aware of whether you have suffered a kidney disorder and that you inform them if you are expecting a baby, plan to become pregnant in the next few months, or are a woman who is breastfeeding.
If you take this drug regularly and become pregnant, you must stop taking it and ask a doctor if you can continue treatment for heartburn.
If you forget a dose, it is important never to consume additional or double quantities, so you must ingest it and skip the next dose to resume the appropriate amount of time between one and the other. The medicine must be kept out of the reach of children and stored at room temperature, that is, between 15 and 30 ° C.
Its external application is not recommended for those who suffer from dry skin, as it can worsen the clinical picture. In addition, it can irritate if used frequently or in excess, so it should only be applied a few drops and no more than three times a week. For better use of liquid magnesium hydroxide, the ideal is to consult with the specialist and give you the corresponding indications for your condition.
This article is merely informative, at FastlyHeal .com we do not have the power to prescribe medical treatments or make any type of diagnosis. We invite you to see a doctor in the case of presenting any type of condition or discomfort.
If you want to read more articles similar to What is magnesium hydroxide for, we recommend that you enter our category of Medication and medical tests .

I am a Surgeon with a diploma in comprehensive ultrasound and surgical care residency, an area I am specializing in. During the exercise of my profession, I have realized the need for patients to know the diseases they suffer, and I can tell you that a large part of their complications is due to a lack of information. Being a health web writer allows me to transmit my experience, without borders, to all those readers eager for knowledge, educate them in the prevention of diseases and promote a healthy lifestyle.