Buclizine 6 mg / 5 ml is a prescription medicine used to treat various allergic conditions such as conjunctivitis and urticaria. It is also used for prevention and treatment of nausea or vomiting associated with motion sickness. It works by lowering your immune system’s response to these conditions and prevents the release of substances in the body that cause inflammation. It helps relieve symptoms such as swelling, pain, itching, and other allergic-type reactions.