why do they have reactions of drugs?

[ayush]

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #689 "Real Life: Common Medical Terms (1)", question 4

Sometimes, people have ......... reactions to certain drugs that are prescribed to them by physicians. This means they have bad and/or unforeseen reactions to the drugs.

(a) adverse
(b) assumed
(c) approved
(d) agreed

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #689 "Real Life: Common Medical Terms (1)", answer 4

Sometimes, people have adverse reactions to certain drugs that are prescribed to them by physicians. This means they have bad and/or unforeseen reactions to the drugs.

Correct answer: (a) adverse
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why do they have reactions of drugs?

ayush

[Linda]

Hi Ayush,
Your question should read: "Why do they have reactions to drugs?"
As far as your question, people sometimes have adverse (bad) reactions to certain drugs because everyone is different. For example, some people might be overly sensitive or allergic to certain medications etc. while others are not. Also, some drugs have side effects that only affect certain individuals.
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