What is acid reflux disease? Acid reflux disease is a condition that occurs when the acid from the stomach refluxes or flows back into the esophagus. It is extremely common condition that affects about 60 million adults. Heartburn, chest pain , lumpy sensation in the throat are some of the most common symptoms of this condition. Acid reflux can do serious damage to the esophagus if it is left untreated. That is why it is important for people who notice these symptoms to consult with their doctors immediately.What are some of the medications that have been approved to treat acid reflux disease?There are a number of medications available to treat acid reflux. A doctor will usually recommend that a patient try an over-the-counter medication first. Maalox, Mylanta and Tums are some of the most popular medications used to treat acid reflux. They work by neutralizing stomach acid. These medications are effective, but they can cause diarrhea if they are overused.Pepcid AC and Zantax 75 are two other medications that can help treat acid reflux. These medications work by reducing the amount of acid that the stomach produces. If a person does not respond to over-the-counter medications, the doctor will write a prescription for a stronger medication.Nexium, Prilosec and Dexilant are in a class of medications called proton pump inhibitors. These medications work by reducing the amount of acid in the stomach. Proton pump inhibitors are extremely effective, but they may come with unpleasant side effects such as diarrhea. There has also been evidence to suggest that these medications can increase the risk of bone fracture. A doctor will usually advise the patient to take a calcium supplement along with a proton pump inhibitor.