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: