Razadyne - The Internet Drug Database We currently have info on 350 drugs has been taken from official FDA sources, but we cannot guarantee it's accuracy. Please use this site for educational purposes only. This site does not replace a proper discussion with your doctor.My mother was recently taking Razadyne. It was a horrible drug for her. She would wake up alert every morning and within 30 minutes of taking this particular drug she was tired, lethargic and at times confused and combative. She has not taken this drug in 30 days now and is awake, alert and much better off without it.