Diphenhydramine is a commonly-used antihistamine drug. Since it is a basic drug, it is usually administered as the hydrochloride salt (Figure 6.) Thus, in various portions of your digestive tract, the drug may be present either as the free base (B) or the protonated form (BH+), depending on the pH. (Figure 4)
An independent contractor contracts with an employer to do a particular piece of work. This working relationship is a flexible one that provides benefits to both the worker and the employer. However, there are drawbacks to the relationship as well.
Independent entity that agrees to furnish certain number or quantity of goods, material, equipment, personnel, and/or services that meet or exceed stated requirements or specifications, at a mutually agreed upon price and within a specified timeframe to another independent entity called contractee, principal, or project owner.