Magnesium Phosphoricum is an excellent Anti Spasmodic. It contains the mineral magnesium which is rewired by the body for a number of reactions. This magnesium is quickly absorbed by the body for use.

This remedy is used curatively for following conditions:

Head
Headache worse after mental pressure
Headache from cold
Migraines
Vertigo on moving, falls forward on closing eyes, better walking in open air.
Sensation as if contents were liquid, as if parts of brain were changing places, as of a cap on head.

Ears
Severe neuralgic pain; worse behind right ear
Ear complaints after exposure to cold and washing face with cold water

Mouth
Good for toothache which is better by heat and hot fluids
Good for teething in children
Swelling of tongue

Abdomen
Pain with lot of flatulence or gas relieved by rubbing, warmth, pressure
Pain is better by bending double on stomach
Stomach complaints accompanied by belching and burps

Female
Good for menstrual cramps and colic where menses are early dark and clotted.
Useful for muscle spasms and cramps in the legs and fingers.

Dose- As prescribed by physician. Can be taken along with other allopathic medicines.

Side effects-None

Precautions
Maintain half an hour gap between food/drink/any other medicines and homeopathic medicine.
Avoid any strong smell in the mouth while taking medicine e.g. camphor, garlic, onion, coffee, hing.

Use under medical supervision.