Table of contents:
- What is Magnesium Citrate
- Warning Before Taking Magnesium Citrate
- Dosage and Instructions for Use of Magnesium Citrate
- How to Use Magnesium Citrate Correctly
- Interaction of Magnesium Citrate with Other Drugs
- Side Effects and Dangers of Magnesium Citrate

Magnesium citrate is a drug used to treat constipation or constipation. In addition, this drug can also be used as a mineral supplement to treat magnesium deficiency
Magnesium citrate works by holding and increasing the water content in the stool. This way of working will make the consistency of the stool softer and stimulate bowel movements. That way, it will be easier to expel the feces.

After consumption, the effect of the drug in stimulating bowel movements will generally appear within 30 minutes to 6 hours.
Magnesium citrate trademark: -
What is Magnesium Citrate
Class | OTC drugs |
Categories | Supplements and laxatives |
Benefits | As a mineral supplement and to treat constipation |
Consumed by | Adults and children |
Magnesium citrate for pregnant and lactating mothers | Category C: Animal studies have shown adverse effects on the fetus, but there are no controlled studies in pregnant women.The drug should only be used if the expected benefit outweighs the risk to the fetus. Magnesium citrate can be absorbed into breast milk. If you are breastfeeding, do not use this medicine without consulting your doctor first. |
Medicine form | Tablets, capsules, syrup |
Warning Before Taking Magnesium Citrate
Although it is an over-the-counter drug, there are several things you should pay attention to before taking magnesium citrate, including:
- Do not take magnesium citrate if you are allergic to this drug.
- Consult your doctor about taking magnesium citrate if you have or are currently experiencing hemorrhoids, intestinal obstruction, ulcerative colitis, heart disease, or kidney disease.
- Consult your doctor about taking magnesium citrate if you have severe stomach pain or persistent nausea and vomiting.
- Consult your doctor about using magnesium citrate if you are pregnant, breastfeeding or planning a pregnancy.
- Consult your doctor if you plan to take magnesium citrate with certain medications, supplements, or herbal products,
- See your doctor immediately if you experience an allergic drug reaction, overdose, or serious side effects after using magnesium citrate.
Dosage and Instructions for Use of Magnesium Citrate
The following are general dosages of magnesium citrate based on the intended use, gender and age of the patient:
Purpose: Nutritional supplements
- Adults aged 19–30 years: For men, the dose is 400 mg per day. For women, the dose is 310–350 mg per day.
- Adults over 30 years old: For men, the dose is 420 mg per day. For women, the dose is 320–360 mg per day.
Goal: Overcoming constipation
- Adult: 195–300 ml per day, can be taken once a day or divided into several consumptions. An alternative dose is 2–4 tablets at bedtime.
- Children aged 2–6 years: 60–90 ml per day, once a day or divided into several consumptions. The maximum dose is 90 ml per day.
- Children aged 6–12 years: 90–210 ml per day, once a day or divided into several meals.
How to Use Magnesium Citrate Correctly
Always follow the doctor's advice and read the instructions on the medicine package before taking magnesium citrate.
Consumption of magnesium citrate on an empty stomach, for example 1 hour before eating or 2 hours after eating. Swallow magnesium citrate tablets or capsules with the help of a full glass of water.
Use the measuring spoon provided on the medicine package to determine the dose of magnesium citrate syrup. Do not use other measuring tools, such as tablespoons, because the dosage can be different. Drink a full glass of water after taking magnesium citrate syrup.
Magnesium citrate will work after 30 minutes to 6 hours after the drug is consumed. Consult a doctor if constipation does not resolve after 7 days of taking magnesium citrate, because this drug should not be used for more than 7 days.
In addition to consuming magnesium citrate, you are advised to eat high-fiber foods, such as green vegetables or fruits, to prevent constipation. You also need to drink about 6-8 glasses of water a day. In addition, exercising regularly can also prevent constipation.
Store magnesium citrate at room temperature, in a dry place, and away from direct sunlight. Keep magnesium citrate out of reach of children.
Interaction of Magnesium Citrate with Other Drugs
There are several interaction effects that can occur if magnesium citrate is used with other drugs, namely:
- Increased phosphate levels in the blood when used with erdafitinib
- Decreased effectiveness of dolutegravir, baloxavir marboxil, or potassium phosphate
- Reduced levels of tetracycline antibiotics, such as tetracycline HCl, oxytetracycline, minocycline, eltrombopag, doxycycline, or demeclocycline in the blood
Side Effects and Dangers of Magnesium Citrate
Some of the side effects that can occur after using magnesium citrate are more frequent, looser stools, stomach cramps or pain, dizziness, excessive sweating, or electrolyte disturbances. Consult a doctor if these side effects do not improve or get worse.
See your doctor immediately if you experience an allergic reaction to the drug or a more serious side effect, such as severe stomach pain, inability to have a bowel movement, or bloody stools after taking magnesium citrate.