I have taken robotussin cough gels with 15mg of dxm per pill. 1 bottle of them = 300mg and a good light trip and I didnt have to drink couch syrup. when I took it both times I wasnt paranoid like acid makes you feel and I didnt have a clenched jaw. It was a great time but I wouldnt be doing it too much. and never get the kind with other ingredients only dxm as the active.