GlossaryDrug: It is also referred to as medication or medicine and is used to diagnose, cure, or prevent disease.
Interactions: Interactions may increase the response, decrease the response, cause toxicity or completely change the response expected from either substance.
OTC: Sold without a prescription.
Insomnia: Being awake when you want to be asleep. Often thought of as a problem, but may not be. Common if people try to spend too long in bed.