Nifedipine tablets can be taken in halves, and nifedipine extended-release tablets and others are not recommended to be broken. The specific method of taking should be according to the doctor’s guidance. Nifedipine tablets can be based on the patient’s blood pressure to choose the dose of the drug, if the patient is only a high blood pressure, you can follow the doctor’s instructions to take half a tablet. However, nifedipine extended-release tablets belong to the extended-release dosage form, the purpose is to turn the short-acting flat tablets, into long-acting extended-release tablets, if you take half a tablet, you can’t play the role of extended-release tablets. When taking nifedipine, it should be noted that the drug may occasionally cause adverse reactions such as chest pain, headache, flushing, blurred eyes, palpitations, drop in blood pressure, swelling of the lower extremities, and is contraindicated in people who are allergic to the product. Nifedipine is a common antihypertensive drug and has a good effect on lowering blood pressure, especially for elderly patients with hypertension. However, any drug should be used under the guidance of a doctor, try not to increase or decrease the dosage by yourself, thus affecting the effect of the drug.