Prednisone is not prescribed for muscle spasms. It is prescribed to suppress your immune system and is also a powerful anti inflammatory. I have polymyositis which is an inflamatory muscle disease and it is commonly used for that and other myositis diseases.
Your muscle spasms could be a side effect of another med, or even something as simple as hypoglycemia. You need to talk to your doctor about the spasms.
Mixed connective tissue disease (systemic lupus, scleroderma, polymyositis), Raynauds phenomena, Hypertension, Barrett's esophagus.
Meds: prednisone (7mg & tapering), 100mg imuran, lisinopril 40mg, maxide 37.5/25mg, norvasc 5 mg, folic acid, potassium, aciphex 20mg, multi vitamins.
Maintain your optimism and you can beat the odds.
"Although the world is full of suffering, it is also full of the overcoming of it." Helen Keller