Not Medical Advice: Pill imprint K 2 has been identified as Promethazine hydrochloride 12.5 mg.
Promethazine is in a group of drugs named phenothiazines. Promethazine works by changing the actions of chemicals in your brain. It also acts as an antihistamine and blocks the effects of the naturally occurring chemical histamine in your body.
Promethazine is used to cure allergy symptoms such as runny nose, itching, sneezing, itchy or watery eyes, hives, and itchy skin rashes. It also prevents motion sickness, and treats vomiting and nausea or pain after surgery. It is also used as a sleep aid or sedative.
Promethazine is not for use in treating symptoms of pneumonia, asthma, or other lower respiratory tract infections.