Bysyntropin is known generically as nifedipine extended-release tablets and is able to be taken together with aspirin. Nifedipine extended-release tablets are calcium channel blockers and are used in the treatment of essential hypertension and chronic stable angina. There are no drug interactions or contraindications to co-administration of this drug with aspirin. However, nausea, abdominal distension and other discomforts may occur after taking the drug; allergy to the components of the drug, cardiogenic shock is prohibited; blood pressure needs to be monitored in the process of taking the drug, pregnant women and lactating women need to be guided by a doctor to use the drug. Aspirin belongs to the non-steroidal anti-inflammatory drugs, after taking with antipyretic and analgesic, anti-platelet aggregation, inhibition of thrombosis and other effects, mainly used to reduce the incidence of myocardial infarction in patients with atherosclerosis, as well as the treatment of toothache, headache, neuralgia fever and so on. There are no contraindications to this drug and nifedipine extended-release tablets; however, dizziness, headache and other discomforts may occur after taking it; it is forbidden for those who are allergic to the components of the drug and those with active peptic ulcers; liver and kidney functions need to be monitored during the course of taking the drug, and pregnant and lactating women need to be guided by a doctor in the use of the drug. In summary, nifedipine extended-release tablets and aspirin does not have drug interactions, and there is no contraindication to drug combination; therefore, you can follow the doctor’s instructions to take the relevant dosage and learn the precautions.