bluefisch200

According to Wikipedia:

In placebo-controlled studies, the most commonly observed side effects were headache, xerostomia (dry mouth), nausea, dizziness, and insomnia. Possible side effects also include depression, anxiety, hallucinations, euphoria, extreme increase in activity and talking, anorexia, tremor, thirst, rash, suicidal thoughts, and aggression. Symptoms of an overdose on modafinil include trouble sleeping, restlessness, confusion, disorientation, feeling excited, mania, hallucinations, nausea, diarrhea, severely increased or decreased heart beat, chest pain, and increased blood pressure

I have successfully shown of a creationist with the the disprove of the word kind. How ever he then fights back with the question of evolution between families (as family->genus->species). I am not sure what to answer.