Difference Between Acid Reflux and Indigestion (With Table)

Acid reflux is a condition marked by a searing sensation in the chest. The disorder causes a significant amount of acid to accumulate in the throat and oesophagus. The stomach produces the acid and has a burning sensation when swallowed.

You can alleviate the burning sensation by taking antacids, which neutralize the acid in your stomach. Indigestion is defined as the sensation of pain or discomfort in the upper abdominal region, and the ailment is referred to as dyspepsia in medical circles.

Overeating is the underlying cause of the disease, and however, it can also be brought on by excessive alcohol use, smoking, stress, and pregnancy. Indigestion is physical discomfort, low-grade pain, and nausea or vomiting.

Acid Reflux vs Indigestion

The main difference between acid reflux and indigestion is that acid reflux happens when acid produced by the stomach rushes up into the esophagus and causes discomfort. Indigestion is characterized by persistent or recurring pain in the upper abdomen.

Many people have acid reflux in different ways. The stomach’s acid floods your throat and oesophagus, resulting in a burning sensation in your throat. Most of the time, treating acid reflux is as simple as taking an antacid like Rennie Peppermint, which neutralizes stomach acid and prevents reflux.

Indigestion is a chronic condition that affects most people on and off. However, indigestion can be made to feel a little better by using Rennie’s services. First, you may notice that you feel bloated after a meal. Vomiting and frequent belching are other possible side effects, as can regurgitation of meals. Even while it may happen at any moment, it’s most prevalent just after a meal.

Comparison Table Between Acid Reflux and Indigestion (in Tabular Form)

Parameter of ComparisonChlorphenamineCetirizine
ChemistryIt is an alkylamine with optical isomerism, which may be seen from different angles.It comprises stereoisomers of the kinds L and D, respectively.
SynthesisSodium amide is used as a catalyst for the synthesis of a variety of chemical molecules (NaNH2)An inorganic component known as sodium carbonate (Na2CO3), as well as an isomer known as xylene, are used in the preparation of the molecule (C8H10)
Half-lifeIt takes humans between 13.9 and 43.4 hours to eliminate a substance once introduced.Elimination takes between 6.5 and 10 hours in people, depending on their body weight.
Side EffectsDry mouth, dizziness, constipation, and nausea are just a few of the possible side effects.Headaches, sleepiness, and exhaustion are just a few of the side effects.
Drug AdministrationBased on the state and requirement of the individual, it can be provided either orally, by intravenous or intramuscular injections, or as subcutaneous injectionsIt can only be administered orally in capsules, tablets, or syrups.

What is Acid Reflux?

In addition to acid reflux, pyrosis and acid intake are all terms used to describe the condition. Symptoms of the illness include burning discomfort in the lower chest area and shortness of breath.

When stomach acid is regurgitated back into the food pipe, it causes discomfort in the stomach. Acid reflux is most commonly seen after eating. This disorder affects people of all ages, and a person’s way of life sometimes brings it on.

Large meals, alcohol, caffeine, and a high intake of table salt are all examples of foods and dietary practices that contribute to acid reflux symptoms. It is also believed that pregnancy can cause acid reflux due to the increased strain on the internal organs.

Acid reflux is characterized by symptoms such as bloating, burping, nausea, and hiccups that don’t stop. Weight loss that occurs for no apparent reason is another indication. Wheezing, a dry cough and a chronic sore throat are all asthma symptoms. If you have frequent acid reflux, H2 blockers or proton pump inhibitors (PPIs) are the primary treatment, and they both have the effect of reducing acid generation. Acid reflux might also be lessened as a result of these supplements.

What is Indigestion?

Indigestion is a term used to describe the discomfort in the upper belly when eating or drinking. This condition is a symptom, not a medical illness.

Indigestion is characterized by abdominal pain and a feeling of being full after you have begun eating. This syndrome is brought on by overeating or eating too quickly, which are harmful. Indigestion is also connected with fatty, oily, and spicy foods, among other things.

This syndrome is also caused by the side effects of drugs, excessive alcohol consumption, and smoking.

Indigestion is characterized by bloating in the upper belly and early satisfaction during a meal. After eating, you may have nausea, burning in the upper abdomen, and an uncomfortable feeling of fullness. Change your way of life and consume a well-balanced diet to help you overcome this illness. Home treatments for indigestion include lemon water, ginger, apple cider vinegar, and peppermint tea, all of which can be consumed immediately.

Main Differences Between Acid Reflux and Indigestion

  1. Acid reflux is brought on by being overweight, eating large meals, and lying down on your back immediately after eating a heavy meal, among other factors. It can also be brought on by consuming onions, garlic, citrus fruits, mint, or spicy foods.
  2. Reflux acid into the stomach can result in problems, including increased cancer risk. Esophagitis is a condition that occurs when the esophagus is exposed to stomach acid for an extended period. This is a condition in which the lining of the esophagus becomes inflamed, leading to bleeding and irritation of the stomach.
  3. It can also cause ulceration in some circumstances. Pyloric stenosis can be caused by indigestion, which is when stomach acid produces long-term irritation of the digestive tract lining.
  4. Acid reflux is a medical ailment that causes searing discomfort in the lower chest area and is caused by stomach acid. It occurs when stomach acid rushes back into the esophagus and causes irritation. Indigestion is a symptom that involves the sensation of being full shortly after you begin eating and abdominal pain.
  5. Acid reflux can be controlled using antacids such as Mylanta, which neutralize the stomach’s acid. Acid reflux can be treated with medications that lessen acid production and inhibit acid generation. Indigestion can be treated in various ways, including avoiding hot foods, drinking alcohol, and quitting smoking. Preventing indigestion by avoiding late-night meals, sipping beverages after meals, and not eating too quickly will help to reduce the likelihood of experiencing it.


With acid reflux or indigestion, there will be a tremendous degree of discomfort and suffering that you will feel. However, by altering your eating habits, you can control both of them. The usage of drugs can also be beneficial in alleviating pain and curing certain diseases. Some of the symptoms of the two illnesses are identical, while others are distinct from one another.

For example, gassy episodes are common among people who suffer from indigestion, which is valid for people who suffer from acid reflux. Despite making lifestyle modifications and modifying one’s food, it is essential to seek medical assistance if the symptoms linger.


  1. https://www.sciencedirect.com/science/article/pii/S1053249809004215
  2. https://www.theportlandclinic.com/wp-content/uploads/2017/01/10560-Gastroesophageal-Reflux-Disease.pdf