Robitussin is a cough medicine that contains dextromethorphan (DXM), which can cause hallucinations and dissociative effects when taken in large quantities. However, using Robitussin or any other medication to get high is considered drug abuse and can lead to serious health risks, including overdose, organ damage, and psychological problems.
It is important to use medications only as directed by a healthcare professional and to avoid using them for recreational purposes. If you or someone you know is struggling with substance abuse or addiction, I strongly encourage seeking help from a healthcare professional or a substance abuse treatment center to address the issue in a safe and supportive manner. There are resources available to help individuals dealing with substance abuse and addiction.