Stabilized angina is not suitable for the use of drugs such as ephedrine, pituitary pressin and Ritalin. 1. Ephedrine: ephedrine is not suitable for patients with stable angina pectoris because ephedrine has the effect of promoting cardiac hyperfunction and increasing the burden on the heart. 2. Pituitary pressin: it is not recommended that patients with stable angina take pituitary pressin, because pituitary pressin belongs to a kind of pressure-raising drugs, patients with stable angina may lead to coronary artery contraction, inducing angina attacks. 3. Ritalin: after suffering from stable angina, it is not recommended to use Ritalin, which is a central excitatory drugs, will directly stimulate the medullary respiratory center, can make tachycardia. Stable angina, in the use of drugs before the need to consult a physician or pharmacist, not blindly self-medication.