You can usually take betahistine after a new crown vaccine. Betahistine is mainly used for the treatment of inner ear vertigo and can be continued if treatment for the original disease is needed after the New Crown vaccine. The instructions do not say which medications interact with the New Crown vaccine. However, it is recommended that if you choose to take betahistine after the New Crown Vaccine, try to take betahistine 24 hours apart, as the New Crown Vaccine can be absorbed by the body within 24 hours to have some effect, and then take betahistine afterward. Betahistine may cause adverse reactions such as loss of appetite, nausea, headache, palpitations, dermatitis, etc. It is contraindicated in children and in those who are allergic to this drug. If you need to take betahistine after the new coronary vaccine, you can also consult your doctor and use the medicine under his guidance.