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Brand Name :
Uro-Mag, Mag-Caps, Mag-Ox 400
Synonyms :
magnesium oxide
Class :
Electrolytes Antacids
Dosage forms and strengths
tablet
400mg (equivalent to 240mg [20mEq] elemental magnesium)
capsule
140mg (equivalent to 84.5mg [6.93mEq] elemental magnesium)
Indicated for magnesium supplementation
mag-Ox tablets should be taken orally once daily, with a recommended dosage of 1-2 tablets per day
Uro-mag capsules should also be taken orally once daily, with a recommended dosage of 1-5 capsules per day
Dosage forms and strengths
tablet
400mg (equivalent to 240mg [20mEq] elemental magnesium)
capsule
140mg (equivalent to 84.5mg [6.93mEq] elemental magnesium)
For children who are 12 years of age or older
The recommended dosage is 2 to 4 caplets to be taken orally each day either as a single administration or divided into multiple doses
It is important not to exceed a maximum of 4 caplets within a 24-hour period
This therapy should be limited to a duration of 7 days or less
Refer adult dosing
it may inhibit the GI absorption of demeclocycline (provide 2 hours difference between both drugs)
it may inhibit the GI absorption of doxycycline (provide 2 hours difference between both drugs)
It may enhance the levels when combined with sodium polystyrene sulfonate by diminishing renal clearance
it may enhance the risk of the side effects when combined with misoprostol
When bacampicillin is combined with magnesium oxide, bacampicillin absorption and blood levels decrease by stomach acid reduction.
when both drugs are combined, there may be a decreased effect of omadacycline by inhibition of gi absorption
it increases the gastric pH, thereby decreasing the effect or level of neratinib
decreases the effect or level of pexidartinib by inhibiting gastrointestinal absorption
may decrease the effects of the drug by GI absorption inhibition
Actions and Spectrum
Actions
Acid-Neutralizing Agent: The drug is an effective antacid that can neutralize excess stomach acid. It reacts with the hydrochloric acid in the stomach to form magnesium chloride and water, thereby reducing acidity and providing relief from conditions like acid indigestion and heartburn.
Laxative: The drug has a laxative action due to its ability to draw water into the intestines. This increased water content softens the stool and promotes bowel movements, making it useful for relieving constipation.
Dietary Supplement: magnesium is an essential mineral required for various physiological processes in the body. magnesium oxide is commonly used as a dietary supplement to address magnesium deficiency, support muscle and nerve function, regulate blood pressure, and promote overall health.
spectrum
Medical and Pharmaceutical Industry: The drug finds extensive use in the medical and pharmaceutical fields. It is employed as an antacid to alleviate symptoms of acid-related digestive disorders. Additionally, it serves as a magnesium supplement to address deficiencies and support various bodily functions.
Frequency not defined
Gastrointestinal irritation
Diarrhea with excessive dose
Contraindication/Caution:
Allergy or hypersensitivity: Individuals who are allergic to magnesium oxide or any of its components should avoid its use.
Kidney disease: People with severe kidney disease or impaired kidney function should use this drug with caution.
Bowel obstruction: The drug should be avoided in cases of bowel obstruction or intestinal blockage.
Myasthenia gravis: magnesium supplements, including magnesium oxide, may interfere with certain medications used to treat this condition.
Dehydration: The drug can have a laxative effect, which can contribute to fluid loss. If you are dehydrated or at risk of dehydration, such as in cases of severe diarrhea or vomiting, it is important to restore fluid balance before using magnesium oxide.
Pregnancy warnings:
Pregnancy category: N/A
Lactation: Excreted into human milk is unknown
Pregnancy Categories:
Category A: Studies that were well-controlled and met expectations revealed no risk to the fetus in either the first or second trimester.
Category B: There were a lack of studies on pregnant women and no evidence of risk to the fetus in animal experiments.
Category C: there was evidence of risk of adverse effects in animal reproduction studies, and no adequate evidence in human studies must take care of potential risks in pregnant women.
Category D: adequate data with sufficient evidence of human fetal risk from various platforms, but despite the potential risk, and used only in emergency cases for potential benefits.
Category X: Drugs listed in this category outweigh the risks over benefits. Hence these categories of drugs need to be avoided by pregnant women.
Category N: There is no data available for the drug under this category
Pharmacology:
magnesium oxide is a medication commonly used in pharmacology and clinical practice. It contains magnesium, an essential mineral that plays a crucial role in various physiological processes in the body.
Pharmacodynamics:
magnesium Ion Source: magnesium oxide dissociates in the gastrointestinal tract, releasing magnesium ions (Mg^2+). These ions are readily absorbed through the intestinal lining and enter the bloodstream, where they exert their pharmacological effects.
magnesium Homeostasis: magnesium is an essential mineral that plays a vital role in various physiological processes, including nerve function, muscle contraction, energy production, and bone health. magnesium ions derived from magnesium oxide help maintain normal magnesium levels in the body and contribute to these essential functions.
Smooth Muscle Relaxation: magnesium ions have a relaxant effect on smooth muscles, including those in the gastrointestinal tract. By promoting smooth muscle relaxation, magnesium oxide can alleviate symptoms of heartburn, indigestion, and acid reflux by reducing the tone and contractions of the esophageal and gastric muscles.
Pharmacokinetics:
Absorption
magnesium oxide is primarily absorbed in the gastrointestinal (GI) tract. It dissociates into magnesium ions (Mg²⁺) and oxide ions (O²⁻) in the acidic environment of the stomach. The absorption of magnesium ions occurs primarily in the small intestine through passive and active transport mechanisms.
Distribution
magnesium ions enter the bloodstream and are distributed throughout the body. magnesium has a wide distribution in various tissues and organs, including bones, muscles, and soft tissues.
Metabolism
magnesium oxide does not undergo significant metabolism in the body. The magnesium ions are utilized in various biochemical reactions and enzymatic processes.
Excretion and elimination
magnesium ions are excreted primarily via the kidneys through urine. The amount of magnesium excreted depends on the body’s needs and the levels of magnesium in the blood. magnesium can also be excreted in feces to a lesser extent.
Administration:
Dosage: The appropriate dosage of drug depends on the specific purpose of use and the individual’s age, health condition, and any underlying deficiencies.
Oral Administration: The drug is typically taken orally in the form of tablets or capsules.
Patient information leaflet
Generic Name: magnesium oxide
Why do we use magnesium oxide?
magnesium supplement: The drug is commonly used as a dietary supplement to provide magnesium to the body.
Pharmaceuticals: The drug is used in the pharmaceutical industry as an ingredient in antacids and laxatives. It can neutralize excess stomach acid and provide relief from indigestion, heartburn, and constipation.
Catalysts: MgO serves as a catalyst or catalyst support in certain chemical reactions, such as in the production of biodiesel or in catalytic cracking processes in the petroleum industry.