Test 2

a substance not needed for survival or normal organism that effects living tissue.

act on central nervous system and pass the blood brain barrior. Alter consciousness, mood, perception, and behavior. Fat (lipid) soluable

All drugs effect are dose dependent, magnitude, subjective experience-what it does and how it feels

• All drugs have multiple effects- main and side effects, tolerance after repeated use: need more to product desired effects, tolerance to multiple effects at different rates.
• withdrawel-unpleasant after effects-Drug/Blood level drop. opposite of initial effect, multiple

All drugs are toxic. Damage internal organs, lethal-death, safety magin LDSO-median lethal dose / EDSO median effective dose

damage brain cells

reaction time, learning, memory, perception, coordination

• How the drugs move through the body and effect
• Faster -> Brain effects more intense and immediate, the faster leave the body - withdrawals more intense and more immediate. more lipid soluable. have + or - charge

gets past skin into bloodstream-routes of adminsistration, efficiency, speed to brain and amount of loss can vary

• thru the skin, slow steady, incomplete,
• loss thru wash, perpiration, evaporation, embed in skin

• absorbed thru stomach or small intestine, faster than topical, incomplete,
• loss thru-saliva, vomit, stomach acid, impact in food
• effect stomach contents-slow or speed

• lining of anus, faster more complete
• loss thru-leaking, gas, bowel movement

• Under the tongue, as fast
• loss slavia

• snort, mucus membrane, nasal cavities, faster
• Loss-mucous, sneeze, cough, pass into lungs

drug slows its own absorption

• vaporized thru lungs, very fast, complete
• loss injection

• directly into the blood stream
• complete and fastest