which medication have a big effect on EEG Signal ! ?

i just wanna asking abt some medication drugs ,because i want to know the effect of them in EEG Signal ? which of them have a huge effect on EEG signal ,couse my graduation project abt classifier between normal and abnormal dataset ,so ,i want to which of them effect of signal to make it abnormal as(spike,flat) to get clearly to classifier between normal dataset and patient take this medication ! which best ? thx :)
1. carbamazepine (Tegretol)
2. valproic acid (depakine)
3. Phenytoin (epanutin)
4. oxcarbazepine (trileptal)
5. 5hydroxytryptamin(Serotonin)