Re: Headaches please help!

4. What are the side effects of magnesium sulfate?

The line between a "therapeutic" and "toxic" dose of magnesium sulfate is very thin. In general, the larger the dose, the greater the chance of severe side effects. Doctors can test your blood to see how much magnesium is in it. This will indicate when a "safe" dose has been exceeded. They also can do reflex checks and monitor urine output, which also may indicate when a "safe" dose has been exceeded.

More common side effects

Flushing

Nausea

Vomiting

Palpitations

Headache

General muscle weakness

Lethargy

Constipation

Complications (sometimes occurring with magnesium overdose)


Cardiac arrest

Pulmonary edema (lungs fill with fluid; can be fatal)

Chest pain

Cardiac conduction defects

Low blood pressure

Low calcium

Increased urinary calcium

Visual disturbances

Decreased bone density

Respiratory Depression (difficulty breathing)

Muscular hyperexcitability



Rare, Severe Complications

Profound muscular paralysis

Paralytic ileus (intestinal obstruction)

http://www.twinslist.org/magsulfate.html


Normal daily recommended intakes in milligrams (mg) for magnesium are generally defined as follows:


Persons U.S.(mg) Canada(mg)
Infants and children Birth to 3 years of age 40–80 20–50
4 to 6 years of age 120 65
7 to 10 years of age 170 100–135
Adolescent and adult males 270–400 130–250
Adolescent and adult females 280–300 135–210
Pregnant females 320 195–245
Breast-feeding females 340–355 245–265