Second, the formulation of a dosage form (i.e. tablet, capsules, suspension, etc.) of this drug must be accomplished in a manner that will deliver a recommended dose to the ‘‘site of action’’ or a target tissue (employing the principles of physical pharmacy and pharmaceutics). And finally, a dosage regimen (dose and dosing interval) must be established to provide an effective concentration of a drug in the body, as determined by physiological and therapeutic needs (utilizing pharmacokinetics and biopharmaceutics). Only a successful integration of these facets will result in successful drug therapy.