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.
Since independent contractors arenât employees, they donât have a minimum wage or pay rate. Instead, independent contractors negotiate payment as part of their contract. An independent contractor will submit an invoice when they need to be paid. They can be paid on a regular basis or at the end of the contract or project.