When a person has to increase the amount of a drug to achieve the desired effects, they have probably developed a pharmacological tolerance.

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Quizplus · Accepted Answer

This is true. Tolerance is a phenomenon in which a person needs to take greater amounts of a drug to achieve the same effects as they initially experienced with a lower dose. This is a common occurrence with many drugs, particularly those that have a high potential for abuse and addiction. Various factors can influence the development of pharmacological tolerance, including the frequency and duration of drug use, individual differences in metabolism and genetics, and environmental factors like stress and drug availability.

When a Person Has to Increase the Amount of a Drug