Hyland’s Mag. Phos 30x Description: Muscle Cramps and Pains Relief of symptoms of muscular cramps and pains (particularly menstrual cramps) relieved by warmth. Also for stomach cramps, flatulence, headaches with darting pains and muscular twitching. Disclaimer These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.