This document summarizes information about four respiratory medications: Mucomyst (acetylcysteine), Ventolin (albuterol), and Hycodan (hydrocodone and homatropine). It provides details on the generic and brand names, uses, and common side effects of each medication. Mucomyst is used to treat lung diseases by thinning mucus, Ventolin is a bronchodilator used for asthma and COPD symptoms, and Hycodan combines hydrocodone and homatropine to suppress coughs as well as relieve pain. All medications require a prescription and can cause side effects like nausea, dizziness, and constipation.