Mucorex Tablet is used for treating various respiratory tract disorders associated with excessive mucus. It works by thinning and loosens mucus in the nose, windpipe, and lungs and make it easier to cough out. Mucorex Tablet should be taken with food. For better results, it is suggested to take it at the same time every day. The dose and how often you take it depend on what you are taking it for. Your doctor will decide how much you need to improve your symptoms. It is advised not to use it for more than 14 days without your doctor's consultation. The most common side effects of this medicine include vomiting, nausea, and stomach upset. Talk to your doctor if you are worried about side effects or they would not go away. Generally, it is advised not to take alcohol while on treatment. Before taking this medicine, tell your doctor if you have liver or kidney disease or if you have stomach problems. Your doctor should also know about all other medicines you are taking as many of these may make this medicine less effective or change the way it works. You must take a doctor's advice before using this medicine if you are pregnant or breastfeeding.