<s>[INST] I am taking citalopram and I have a really bad cough because of a cold. My husband bought me Delsuym and I took it as directed without looking at the label. About an hour later I got nauseous and I have vomited twice since. Is that related to a drug interaction or just because of the coughing and cold? [/INST] HiDelysm is a medication used for temporary relief of coughs without phlegm that are caused by certain infections of the air passages (e.g., sinusitis, common cold). Slight drowsiness/dizziness, nausea, or vomiting may occur as a side effect.You can avoid further intake if vomiting continues.Hope that was helpful.Let me know if i can assist you further.RegardsDr.Saranya RamadossGeneral and Family Health Physician </s>