 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  any medicines without your doctor's approval. Some products that may interact with this drug include: cabergoline, ketoconazole, lithium, methyldopa, drugs for Parkinson's disease (such as levodopa and carbidopa, selegiline), paroxetine, pergolide, quinupristin/dalfopristin, saquinavir. Many drugs besides haloperidol decanoate may affect the heart rhythm (QT prolongation), including amiodarone, dofetilide, pimozide, quinidine, sotalol, procainamide, and macrolide antibiotics (such as erythromycin), among others. Before using haloperidol, report all medications you are currently using to your doctor or pharmacist. Tell your doctor or pharmacist if you are taking other products that cause drowsiness such as opioid pain or cough relievers (such as codeine, hydrocodone), alcohol, marijuana (cannabis), drugs for sleep or anxiety (such as alprazolam, lorazepam, zolpidem), muscle relaxants (such as carisoprodol, cyclobenzaprine), or </s>