Answer :
Case-control studies are the most important type of study in determining the rare side effects of a drug that occur with long-term usage.
What is meant by side effects?
A side effect can be positive or negative. For example, the side effect of doing laser treatment for cataract patients can sometimes improve a person’s eyesight. This is a positive side effect.
A negative side effect or an adverse effect means a side effect that is unwanted or potentially dangerous. The side effects can be due to a medication, surgical procedure, or another kind of intervention.
The negative side effects or adverse effects can vary for everyone. It depends on the general health, the disease, the age of the person, their weight or their gender. Depending on all these factors, the side effects can be mild, moderate, or severe.
Therefore, case-control studies are the most important type of study in determining the rare side effects.
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