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.
A number of factors may cause a muscle to cramp or spasm. The most common causes of charley horses include: 1  inadequate blood flow to the muscle. 2  muscle injuries. 3  exercising in excessive heat or cold. 4  overuse of a specific muscle during exercise.5  stress (most often in the neck muscles).6  not stretching before exercise.he most common causes of charley horses include: 1  inadequate blood flow to the muscle. 2  muscle injuries. 3  exercising in excessive heat or cold. 4  overuse of a specific muscle during exercise.