Drugs

Rosemarie Patterson

 PSY 480 Biopsychosocial Effects of Substance Abuse Module 2 Assignment2

Argosy University Online

September 17, 2009

Movement of Drugs through the body in order

from fastest to slowest Inhalation

lungs

Injectionveins

muscles

skin

Sublingualtongue

IntranasalSnorting

Sinuses

Oral

Rectal

TransdermalSkin(Argosy University, 2009)

Absorption of Drugs

After the drug is administered it moves every where it can within the body from the administered point of origin (Argosy University, 2009).

Then it is evenly absorbed and distributed throughout the entire body and the organs (Argosy University, 2009).

HALF-LIFEBLOOD-BRAIN BARRIER

• Half – Life is the time it takes for ½ of the drug to be metabolized by the body. The shorter the half-life the greater chance the drug will be abused by a person (Argosy University, 2009).

• Blood-brain Barrier is cells in the brain which prevents harmful substances such as drugs from getting into the brain (Argosy University, 2009).

Prevention of Drug Abuse by pharmaceutical companies

Create large sized drugs that are not soluble in water or lipid soluble. The drugs must not be capable of dissolving in both water and fat, nor under the tongue (Argosy University, 2009).

The drugs must break down slowly and slow time released within the body by route preferred administered through the skin which is the slowest way that a drug can move within the body system (Argosy University, 2009).

References

Argosy University. (2009). Biopsychosocial Effects of Substances Module 2. Retrieved September 17, 2009 from http://myeclassonline.com/