Respuesta :
A side effect is usually regarded as an undesirable secondary effect which occurs in addition to the desired therapeutic effect of a drug or medication. Side effects may vary for each individual depending on the person's disease state, age, weight, gender, ethnicity and general health
Answer:
Because if you take a drug normally without any side affects, you might get VERY sick. ( DON''T TAKE DRUGS UNLESS YOUR DOCTOR GIVES YOU SOME)
Explanation: