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Graded A+
Blood-Brain Barrier - ✔✔A barrier that prevents certain substances
from entering the brain easily.
Hepatic Metabolism - ✔✔The process by which the liver breaks down
drugs and other substances.
First Pass Effect - ✔✔The phenomenon where a drug is extensively
metabolized by the liver before reaching systemic circulation.
Tolerance - ✔✔The reduced response to a drug over time, requiring
higher doses for the same effect.
Physical Dependence - ✔✔The state where the body adapts to a drug
and experiences withdrawal symptoms without it.