You might try a homeopathic remedy called Cuprum Met. It is specifically helpful with cramping muscles, and I've found it very helpful myself. There is no potential for addiction to this homeopathic remedy, and you should be able to find it in a health food store or online (I like getting remedies from www.abchomeopathy.com )
Chronic Lyme Disease, Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication Allergies & Intolerances, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD ("Secondary Lupus-Like Syndrome"), Osteoporosis, Anemia, Lymphopenia, intermittant Pancytopenia, chronic malabsorption/malnutrition, etc.; G Tube; Currently TPN-dependent.
Meds: Zofran, Pulmicort, Heparin (to flush PICC line), IV Cipro (for G-tube site infection).