Final answer:
Cocaine and methamphetamine abusers should avoid substances that increase blood pressure or heart rate, and medications that can worsen psychological disturbances. Substances like certain decongestants, weight loss medications, and non-selective beta-blockers, as well as nicotine, are contraindicated, given the risk of cardiovascular and psychological adverse effects.
Step-by-step explanation:
What is contraindicated in cocaine or methamphetamine abusers?
For cocaine or methamphetamine abusers, various treatments and medications are contraindicated due to their adverse interactions with these stimulants. Cocaine, particularly, is notorious for causing vasoconstriction, which in turn can lead to increased blood pressure and cardiovascular risks such as stroke, heart attack, and cardiac arrhythmia. Therefore, any substance that further increases blood pressure or heart rate is typically contraindicated, including certain decongestants, weight loss medications, and non-selective beta-blockers.
Nicotine should also be avoided, as it may enhance the stimulatory effects of cocaine on the nervous system. Furthermore, since cocaine and methamphetamine can cause psychological disturbances and mood disorders due to neurotransmitter depletion, medications that could exacerbate these symptoms, such as other stimulants or certain antidepressants, may be contraindicated. The clear risks of additive CNS stimulation and cardiovascular strain make the careful assessment of any prescribed or over-the-counter medications critical for individuals who abuse cocaine or methamphetamine.