In a retail pharmacy setting homeopathic over-the-counter combination formulations are used to relieve the symptoms associated with a particular condition, such as colic, teething pain, earaches, muscle aches and pains, sprains, strains, restless legs, or leg cramps.  According to the 2007 National Health Interview Survey, Americans spend around $2.9 billion dollars out‐of‐pocket for O-T-C homeopathic remedies each year.