When will the confusion and speech problem pass after the drugs Ketrel and Egzysta?

Good morning, I take medications: ketrel (200 mg, half morning and half evening) and exista (300 mg, half morning, half evening). I feel confused, drowsy, I have the impression that it is harder for me to speak, formulate a statement, as if it was more difficult, as if the language was so heavy (I work with people). Is this a normal side effect when it passes? I have been taking this dose for about 2 weeks.