What is a drug side effect?
A person with a drug side effect has a symptom or illness that is caused by a medication. In most cases, a side effect is undesirable. Almost all drugs are capable of causing side effects.

What are the symptoms of a drug side effect?
Drug side effects can cause a wide range of symptoms such as nausea, headache, dizziness, diarrhea, constipation, rashes, fatigue, and fever.

How does the doctor treat a drug side effect?
Treatment for drug side effects may include stopping or reducing the dose of a medication or taking the medications with food.