Sodium bicarbonate: Uses, Side Effects, Storage and Precautions
Written by Medicover Team and Medically Reviewed by Dr Arun Kumar Donakonda, Nephrology
Sodium bicarbonate, commonly known as baking soda, is a versatile compound widely used for both medicinal and non-medicinal purposes. It is primarily known for its role in relieving acid-related stomach issues.
Sodium bicarbonate (NaHCO3) is a white crystalline compound that acts as an antacid. It is composed of sodium (a cation) and bicarbonate (an anion) and is available in powder, tablet, and injectable forms. It neutralizes excess acid in the stomach and body fluids.
Sodium bicarbonate is a salt that breaks down to form sodium and bicarbonate in liquids, including blood and urine. This degradation helps buffer the blood, making it less acidic. It helps treat conditions associated with high acidity in body fluids, such as indigestion caused by excess stomach acid.
Dosage should be based on your medical condition and your doctor's advice.
If you're using sodium bicarbonate regularly and miss a dose, take it as soon as you remember. If it's near the time for your next dose, skip the missed one. Do not double the dose.
An overdose of sodium bicarbonate can be dangerous.
Symptoms may include:
Seek emergency medical attention immediately if an overdose is suspected.
Get a second opinion from trusted experts and makeconfident, informed decisions.
Get Second OpinionSodium bicarbonate can interfere with the absorption or effectiveness of certain medications, such as:
Improper storage can reduce the medicine's effectiveness and may cause it to degrade. Always follow the packaging guidelines and dispose of expired or unused products responsibly.
| Sodium Bicarbonate | Sodium Carbonate |
|---|---|
| Baking soda is usually called sodium bicarbonate. | Sodium carbonate or washing soda is also referred to as soda ash. |
| The formula for sodium bicarbonate is given as NaHCO3. | The chemical formula for sodium carbonate is Na2CO3. |
| Sodium bicarbonate is composed of salt, acid, and hydrogen. | The composition of sodium carbonate consists of sodium and carbonic acid. |
| Sodium bicarbonate is typically monoprotic and has a weaker base. | Sodium carbonate is diprotic and a strong base. It transforms into sodium bicarbonate when treated with acid and acts as a strong conductor of electricity. |
| It is commonly used as a cleaning or exfoliating agent, odor neutralizer, and temporary fire extinguisher. | It is widely used in neutralizing acidic solutions across various industries. |
| In our body, sodium bicarbonate is present and helps control and neutralize elevated acidity in the blood. | Sodium carbonate is used in body processes or reactions. |

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040-68334455Stomach acid is reduced by sodium bicarbonate. In order to relieve heartburn, indigestion, and upset stomach, it is used as an antacid. Sodium bicarbonate is an antacid that is very fast-acting. Only for immediate relief should it be used. Speak to your doctor about other drugs if you need to treat long-term stomach acid issues (such as peptic ulcer disease, GERD).
Although Sodium bicarbonate is generally not considered to be one of the most dangerous chemicals, exposure to large quantities of sodium bicarbonate can lead to some adverse health effects, such as coughing and sneezing if inhaled with a high concentration of dust. When large quantities have been consumed, gastrointestinal irritation may occur.
Adults and grown-ups - one to four times a day, 325 milligrams (mg) to 2 grams.Kids up to 6 years of age: The doctor must assess the dosage.Children between the ages of 6 and 12. The dosage is 520 mg.
Sodium bicarbonate does not need to be refrigerated. It should be stored at room temperature, in a dry, tightly closed container, away from heat and moisture to prevent clumping and loss of effectiveness.
The length of use depends on the reason it's prescribed. For occasional heartburn or acid indigestion, it should be used short-term. For chronic conditions like metabolic acidosis, long-term use may be necessary under medical supervision. Always follow your healthcare provider’s guidance.
Common side effects may include gas, bloating, increased thirst, and stomach cramps. If you experience serious side effects like swelling, difficulty breathing, or severe headache, seek medical help immediately.
Disclaimer: The information provided is accurate and up-to-date to the best of our knowledge. However, it should not be considered a substitute for medical advice or consultation. We do not guarantee its completeness or accuracy. The absence of specific warnings does not mean a medicine is safe for all users. We are not responsible for any outcomes based on this information and strongly recommend consulting a doctor for any medical concerns or questions.