Generic Phenergan belongs to a group of drugs called phenothiazines. It works by changing the actions of chemicals in your brain. Promethazine (the active ingredient) also acts as an antihistamine. It blocks the effects of the naturally occurring chemical histamine in your body. Phenergan is used to treat allergy symptoms such as itching, runny nose, sneezing, itchy or watery eyes, hives, and itchy skin rashes. Phenergan also prevents motion sickness, and treats nausea and vomiting or pain after surgery. It is also used as a sedative or sleep aid.
More info

BUDESONIDE is a steroid that reduces inflammation in the body. Formoterol is a bronchodilator that relaxes muscles in the airways to improve breathing. Budesonide and Formoterol is used to prevent bronchospasm in people with asthma or chronic obstructive pulmonary disease (COPD).
More info