Today's true sports drinks are still the classic Gatorade -- packed with the electrolytes potassium, magnesium, calcium, and sodium to provide energy during intense workouts -- as well as competitors such as Cytomax, Allsport, and Accelerade.
Certain medications can also cause Charley horse as a result of their side effects. Drugs such as statins or medicines prescribed for lowering cholesterol, blood pressure, diuretics, asthma medicines like terbutaline and salbutamol, morphine and lithium can trigger muscle spasms.
What Causes Charlie Horses? Charlie Horses is the name given to muscle spasm experienced by an individual, especially in the leg. The most probable area where Charlie horse strikes is the calf region and at night. In case of such a spasm, the concerned muscle contracts and cramps, without any slightest indication beforehand.