Drug Dependency, Addiction, and Abused Substances

Flashcards created from lecture notes covering drug dependency, addiction concepts, statistics on drug abuse in the Philippines, and the specific effects of methamphetamine hydrochloride.

What is drug dependency?

A state of physical and/or psychological dependence on a drug that may happen when a person uses a substance continuously or repeatedly.

What may a person experience when drug use is reduced or suddenly stopped?

Withdrawal symptoms, which can include physical and emotional discomfort.

How is addiction defined in the lecture notes?

A complex and often chronic condition that affects the brain, involving strong craving, seeking, and continued use of a substance even when negative effects are experienced.

Which brain systems can be changed by repeated drug use?

The brain's reward, motivation, and decision-making systems.

What is the estimated number of drug users in the Philippines?

1.47 Million

What is the mean age of drug users in the Philippines?

20-29 years old*

What is the reported male-to-female ratio of drug users in the Philippines?

10:1

What are the three most commonly abused substances listed in the Philippines?

1. Methamphetamine Hydrochloride (Shabu), 2. Cannabis (Marijuana), and 3. Inhalants such as contact cement.

What impairments have studies shown in methamphetamine abusers?

Reduced motor skills and impaired verbal learning.

Alterations in the activity of which neurotransmitter cause motor and verbal learning impairments in methamphetamine abusers?

Dopamine, a neurotransmitter involved in reward, motivation, experience of pleasure and motor function.

What are the other adverse effects associated with methamphetamine abuse?

Extreme weight loss, severe dental problems ("meth mouth"), anxiety, confusion, insomnia, mood disturbances, and violent behavior.