C1 Mod 2 – Introduction to Psychoactive Substance Use

8/11/2019 C1 Mod 2 Introduction to Psychoactive Substance Use

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MODULE 2INTRODUCTION TO

PSYCHOACTIVE SUBSTANCE USE

Curriculum 1

Physiology and Pharmacology for

Addiction Professionals

The Colombo Plan Asian Centre for Certification and Education of Addiction Professionals Training Series

Curriculum 1


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2.2

Module 2 Learning Objectives

Define psychoactive substance

List general ways in which psychoactive

substances affect mood, thoughts, and behavior

List the four main categories (classes) of

psychoactive substances and several substances

within each

List the methods of administering psychoactivesubstances

Discuss the levels of progression of substance

use


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2.3

Psychoactive Substances

Affect the bodys central nervous system

Change how people behave or perceive what

is happening around them


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2.4

Central Nervous System


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2.5

BloodBrain Barrier

Large, water-solublemolecules are

blocked

Small, fat-solublemolecules can enter


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2.6

Pharmacology

Studies the effects of medications and other

substances on the body and the brain


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2.7

Half-Life

The amount of time it takes to eliminate half of

the original dose of a substance from the body


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2.8

Other Factors

A persons age, the length of time a person

has regularly used a substance, and the

amount of a substance regularly used affect

how the body:Absorbs psychoactive substances

Metabolizes them

Eliminates them


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2.9

Psychoactive Substances

Psychoactive substances alter:

Mood

Thoughts

Sensory perceptions

Behavior


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2.10

Effects of Psychoactive Substances

Can be positive ornegative

Depend to a large extent on the typeof

substance used


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2.11

Drug Classes: Examples

Stimulants Opioids

(narcotics)

Depressants Hallucinogens

Cocaine Heroin Alcohol LSD

Amphetamine Morphine BarbituratesMescaline

Peyote

Methamphetamine Opium Benzodiazepines Ecstasy

Nicotine,

Caffeine Demerol

Gamma-

Hydroxybutyrate

(GHB); RohypnolMushrooms


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2.12

Legal Substances

Just because a substance is legal does not

mean it is safer than an illegal substance


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2.13

Other

Some drugs do not fit neatly into a category:

Cannabinoids (marijuana, hashish)

Khat/Miraa

Dissociative anesthetics (phencyclidine [PCP],ketamine)

Inhalants solvents, gases, nitrites


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2.14

Routes of Administration

Swallowing

Snorting

Smoking

Inhaling fumes

Intramuscular (IM) injection

Subcutaneous (SC) injection

Intravenous (IV) injection

Topical

Sublingual


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2.15

Routes of Administration

The faster the drug hits the brain, the greater

and more reinforcing its effect


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2.16

Speed of Action

Smoking: 710 seconds

Intravenous injecting: 1530 seconds

Injecting into the muscle or under the skin: 35

minutes


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2.17

Speed of Action

Mucous membrane absorption (snorting,

rectal): 35 minutes

Swallowing: 2030 minutes

Absorbed through skin: Slowly over a long

period


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2.18

Small-Group Exercise: Routes of

Administration

Form small groups

As a group, develop a list of any five

psychoactive substances

For each substance, list the most common

routes of administration used in your area

Keep in mind that some substances have

more than one route of administration


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2.19

Break15 minutes


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2.20

Progression of Use

Experimental/recreational use

Circumstantial/Occasional use

Intensified/regular use

Compulsive/addictive use


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2.21

Learning Assessment

Write one quiz question about todays material

on a piece of paper


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2.22

Journal

What did you learn today that you did not

already know?

How might you apply what you learned to your

job?What questions do you still have?

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C1 Mod 2 – Introduction to Psychoactive Substance Use

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