Alka-Seltzer

Digestive Relief

Alka-Seltzer is frequently used to treat symptoms caused by excess stomach acid. These conditions include:

• Heartburn
• Acid indigestion
• Sour stomach
• Upset stomach associated with these symptoms

Pain and Fever Relief

This medication is also indicated for the temporary relief of minor aches and pains. It is commonly used for:

• Headaches
• Muscle aches
• Toothaches
• Menstrual cramps
• Body aches associated with the common cold

It may also be used to help reduce a fever.

Neutralizing Stomach Acid

Alka-Seltzer contains ingredients such as sodium bicarbonate and citric acid. When these tablets are placed in water, they react to create sodium citrate. This substance acts as an antacid that helps neutralize the acid currently in the stomach. By reducing the acidity level, it provides relief from symptoms like heartburn, sour stomach, and acid indigestion.

Relieving Pain and Inflammation

The medication also contains aspirin, which is a salicylate and a nonsteroidal anti-inflammatory drug (NSAID). Aspirin works by blocking the production of certain natural substances in the body, known as prostaglandins, that signal pain and cause inflammation. By lowering the levels of these chemicals, the medication helps alleviate headaches and general body aches.

Effervescent Delivery

The characteristic bubbling, or effervescence, occurs because of the chemical reaction between the citric acid and sodium bicarbonate in water. This process ensures that the active ingredients are fully dissolved into a solution before they are swallowed, which may help the body begin to process the medication more quickly.

Common Side Effects

• Nausea
• Vomiting
• Stomach pain
• Heartburn

Serious Side Effects

Seek medical attention immediately if you experience any of the following serious symptoms:

• Signs of stomach bleeding, such as black, tarry, or bloody stools
• Vomiting blood or vomit that looks like coffee grounds
• Severe or persistent stomach pain
• Signs of a serious allergic reaction, including hives, rash, or swelling of the face, lips, tongue, or throat
• Difficulty breathing or wheezing
• Ringing in the ears or sudden hearing loss
• Unusual bruising or bleeding
• Fast heartbeat or cold, clammy skin

Stomach Bleeding Warning

This product contains aspirin, which may cause severe stomach bleeding. The risk is higher for individuals who:

• Are age 60 or older.
• Have had stomach ulcers or bleeding problems.
• Take a blood thinning or steroid drug.
• Take other drugs containing prescription or nonprescription NSAIDs, such as aspirin, ibuprofen, or naproxen.
• Have three or more alcoholic drinks every day while using this product.
• Take more than the recommended dose or use it for a longer time than directed.

Reye's Syndrome

Children and teenagers who have or are recovering from chickenpox or flu-like symptoms should not use this product. If changes in behavior with nausea and vomiting occur, a doctor should be consulted because these symptoms could be an early sign of Reye's syndrome, a rare but serious illness.

Allergy Alert

Aspirin may cause a severe allergic reaction. Symptoms may include hives, facial swelling, asthma (wheezing), or shock. Individuals with a known allergy to aspirin or other pain relievers should avoid this medication.

Sodium Content

Many Alka-Seltzer formulations contain a significant amount of sodium. Individuals who are on a sodium-restricted diet or those with heart or kidney conditions should consult a healthcare provider before use.

Other Precautions

Consult a healthcare professional before use if there is a history of asthma, persistent stomach problems, or if taking medication for diabetes, gout, or arthritis. Use during the last three months of pregnancy is generally avoided unless directed by a doctor, as it may cause complications for the unborn child or during delivery.

Pregnancy

Consult a healthcare provider before using Alka-Seltzer if you are pregnant or planning to become pregnant. This medication contains aspirin, which is a salicylate. Taking aspirin during pregnancy, especially during the last 20 weeks, can cause serious complications.

Potential risks of using aspirin during pregnancy include:

• Fetal development issues: It may cause heart or lung problems in the unborn baby.
• Kidney concerns: Use after 20 weeks may lead to kidney problems in the fetus, resulting in low levels of amniotic fluid.
• Bleeding risks: Aspirin can increase the risk of bleeding for both the mother and the baby during labor and delivery.

Breastfeeding

The aspirin in Alka-Seltzer can pass into breast milk. Because aspirin has been linked to serious conditions like Reye's syndrome in children and teenagers, healthcare providers generally advise caution. It is important to speak with a doctor or pharmacist to determine if this medication is safe for your specific situation while nursing.

Available Forms

Alka-Seltzer products are offered in several different formats depending on the specific formulation and intended use. The most common forms include:

• Effervescent Tablets: These tablets are designed to be completely dissolved in a glass of water before drinking. They typically contain a combination of ingredients such as aspirin, citric acid, and sodium bicarbonate.
• Chewable Tablets: Some versions, particularly those focused on heartburn relief, are available as tablets that can be chewed and swallowed without water.
• Gummies: Certain antacid-only formulations are available in a gummy format.

Because Alka-Seltzer is a brand name used for various products, the active ingredients and their strengths vary significantly between versions, such as Original, Extra Strength, or Heartburn Relief. It is important to check the specific product packaging for the exact formulation and dosage instructions.

FDA Approval and Regulation

Alka-Seltzer products are regulated by the FDA as over-the-counter (OTC) medications. They are marketed under the FDA's OTC Monograph system, which establishes requirements for the safety, effectiveness, and labeling of non-prescription drugs used for antacid and analgesic purposes.

Approved Indications

The FDA-approved labeling for Alka-Seltzer Original Effervescent Tablets includes the temporary relief of:

• Heartburn, acid indigestion, and sour stomach.
• Upset stomach associated with these symptoms.
• Minor aches and pains, such as headaches or muscle aches.

Safety Communications

In 2016, the FDA issued a safety communication warning consumers about the risk of serious stomach bleeding when using OTC antacid products that contain aspirin, such as certain Alka-Seltzer varieties. The FDA noted that while the risk is generally low, it is higher for individuals who:

• Are age 60 or older.
• Have a history of stomach ulcers or bleeding problems.
• Take blood-thinning or steroid medications.
• Take other drugs containing nonsteroidal anti-inflammatory drugs (NSAIDs).
• Consume three or more alcoholic drinks every day while using the product.

Reye's Syndrome Warning

The FDA requires a specific warning on the labeling of aspirin-containing products regarding Reye's syndrome. Children and teenagers who have or are recovering from chickenpox or flu-like symptoms should not use this product due to the risk of this rare but serious illness.

How Alka-Seltzer Works for Heartburn

Alka-Seltzer typically contains active ingredients such as sodium bicarbonate and anhydrous citric acid. When the tablets are placed in water, they dissolve and react to form sodium citrate, a buffering agent. This solution helps neutralize the acid in the stomach, providing fast relief from the discomfort of heartburn and acid indigestion.

Usage and Administration

To treat heartburn symptoms, the tablets must be fully dissolved in a glass of water before drinking. It is important not to swallow the tablets whole. Users should follow the specific dosage instructions on the product packaging, as taking too much can lead to serious side effects.

Important Safety Considerations

Many versions of Alka-Seltzer also contain aspirin, which is a salicylate. While this can help if heartburn is accompanied by minor aches, aspirin is known to increase the risk of serious stomach bleeding. This risk is higher for individuals who:

• Are age 60 or older.
• Have a history of stomach ulcers or bleeding problems.
• Take blood-thinning or steroid medications.
• Consume three or more alcoholic drinks every day while using the product.

If heartburn symptoms persist for more than two weeks, or if you experience frequent heartburn, you should stop use and consult a healthcare provider, as this may be a sign of a more serious condition. Additionally, because of the sodium content in the effervescent tablets, individuals on a sodium-restricted diet should speak with a doctor before use.