Naproxen can be injected with dexamethasone, but it is not recommended to be mixed together for injection, it should be injected separately to avoid affecting the efficacy of the drug. Naproxen has anti-inflammatory, analgesic and antipyretic effects, mainly used for symptomatic treatment of fever and pain caused by various reasons, such as osteoarthritis, rheumatoid arthritis, gout and so on. Its adverse reactions include diarrhea, dizziness, shortness of breath, blurred vision, etc. It is contraindicated for those who are allergic to this product or other non-steroidal anti-inflammatory drugs, severe heart failure, active gastrointestinal bleeding. Dexamethasone belongs to the adrenocorticotropic hormone class of drugs, mainly used for allergic and autoimmune diseases, such as lupus erythematosus, ulcerative colitis, severe bronchial asthma and so on. Its adverse reactions include infection, gastrointestinal irritation, electrolyte disorders, etc. It is contraindicated for those who are allergic to this product. Naproxen can be injected together with dexamethasone, but it is recommended to be injected separately. If there is any significant discomfort after using the drug, please consult your physician promptly. Both drugs need to be used in accordance with medical advice.