Question: what over the counter medications can make you high?
Answer: Dextromethorphan (DXM) DXM is used for temporary relief of cough caused by the common cold. ...  Loperamide. Loperamide is a synthetic opioid that is taken to relieve diarrhea. ...  Pseudoephedrine/phenylephrine. ...  Diphenhydramine (DPH) ...  Acetaminophen. ...  Oxybutynin transdermal system. ...  Antacids. ...  Other regularly abused OTC products.