Safflower yellow pigment for injection is a drug commonly used in clinical practice for activating blood circulation and relieving blood stasis. It has the effect of activating blood circulation and relieving pain, and is often used in clinical practice to treat chest tightness, chest pain, palpitation and shortness of breath caused by blood stasis in the heart. The main adverse reactions of saffron yellow pigment for injection focus on allergy. Individual allergic patients may experience fever, palpitations, allergic skin papules or even laryngeal edema or mild drowsiness after using the drug, so care should be taken when using it for allergic patients. Safflower yellow pigment for injection is a blood-stasis activating drug, so it is also contraindicated in patients with bleeding tendency and pregnant women. It should also be noted that this product should not be mixed with other drugs to avoid reactions.