 <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]  your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval. Some products that may interact with this drug include: aliskiren, clonidine, disopyramide, dofetilide, fingolimod, lithium. Other medications can affect the removal of verapamil from your body, which may affect how verapamil works. Examples include erythromycin, rifamycins (such as rifampin), ritonavir, St. John's wort, among others. Verapamil can slow down the removal of other medications from your body, which may affect how they work. Examples of affected drugs include asunaprevir, colchicine, elacestrant, fezolinetant, flibanserin, ivabradine, lomitapide, midazolam, triazolam, among others. Some products have ingredients that could raise your heart rate or blood pressure. Tell your pharmacist what products you are using, and ask how to use them safely (especially cough-and-cold products, diet aids, or NSAIDs such as ibuprofen/nap </s>