1. Maintain water and electricity balance: intramuscular injection or intravenous injection can replenish magnesium ions in the body, which can effectively prevent and control convulsions (eclampsia); magnesium ions directly act on uterine muscle cells and can relieve uterine contractions ; Adverse reactions: Patients with gastrointestinal ulcers and damaged mucous membranes are prone to absorb large amounts of magnesium ions and cause magnesium ion poisoning. And it should be used with caution in patients with poor renal function, old and young patients.

2. External application of 50% magnesium sulfate solution through hot compress can reduce inflammation and relieve pain; method: fully soak gauze or absorbent cotton in 50% magnesium sulfate solution, take it out and apply it to the affected area, place a warm water bag on top of the gauze or absorbent cotton, and then It can be applied. 3. The concentration of oral medicine is 33, which has a choleretic effect. Suitable for severe pregnancy-induced hypertension, threatened premature birth and other adverse reactions: vomiting, abdominal pain, loss of appetite

3. Treatment of constipation: oral administration is difficult to absorb, thus increasing the osmotic pressure in the intestinal cavity and causing a large amount of water to Intestinal expansion causes the intestinal wall to be stimulated, which can lead to catharsis; adverse reactions: if the magnesium sulfate aqueous solution taken is too concentrated, it will absorb a large amount of water and lead to dehydration, so it should be taken on an empty stomach in the morning and drink a lot of water, which can accelerate the cathartic effect. and prevent dehydration. If you take a magnesium sulfate aqueous solution that is too concentrated and do not drink enough water, defecation time will be delayed. :

Magnesium sulfate is a very efficient and easily absorbed drug. It has pharmacological effects of hypertonicity, swelling, analgesia, and so it is widely used. However, before using it, you must remember to consult a doctor first. It is safer. Oh

(1) The effect of magnesium sulfate is related to the specific usage. Usually external application can reduce inflammation and reduce swelling. The most commonly used is oral and intravenous injection to treat pregnancy-induced hypertension syndrome, cervical edema during labor, constipation, etc. , relieve uterine contractions

(2) The adverse reactions of magnesium sulfate include: vomiting, abdominal pain, loss of appetite, etc. People with poor renal function, old and young patients should use with caution.

Reference: Baidu Encyclopedia entry magnesium sulfate