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.
For these contractors, they must enter into agreements with a subcontractor to competitively bid these government contracts. A Teaming Agreement is a commonly used tool whereby a prime contractor and subcontractor combine resources to bid on a major government contract.