What does Bayer's Indian "Alka-Seltzer Enriched with Probiotic" Contain?

Alka-Seltzer was developed by Maurice Treneer and launched in 1931. It was marketed for relief of minor aches, pains, inflammation, fever, headache, heartburn, stomach ache, indigestion, acid reflux, and hangovers while neutralizing excess stomach acid. The original effervescent formula had aspirin as its main active ingredient.

Aspirin (acetylsalicylic acid) is not required to produce the effervescent action of Alka-Seltzer; the effervescence is produced by the baking soda (sodium bicarbonate) and citric acid reacting to form sodium citrate and carbon dioxide gas.

citric acid + sodium bicarbonate → water + carbon  dioxide + sodium citrate

The carbon dioxide bubbles are what cause the effervescence.

The effervescent antacid and pain reliever brand is owned by Bayer since 1978. In 2017, Bayer decided to reformulate certain Alka-Seltzer effervescent products to remove the pain reliever, and related indications, in order to focus exclusively on occasional heartburn and upset stomach relief. Alka-Seltzer marketed as an antacid no longer contains aspirin (ASA).

Bayer claims that Alka-Seltzer is India's first antacid in the AYUSH category with probiotic support.  

Check the composition of the "Ayurvedic Proprietary Medicine" -

Svarjiksara (Suddh), Nimbu Satva/Nimbukamlam/Citrus medica (Citric Acid) Fr. extract, Dahi extract. Flavour Lemon. Contains permitted artificial sweetener (Sodium Saccharin 5mg/5.20g), Fructoligosaccharides. Permitted colours - Tartrazine & Brilliant Blue.

Svarjiksara is essentially purified sodium carbonate/bicarbonate (traditional Ayurvedic alkaline salt). Nimbu Satva / Nimbukamlam / Citrus medica extract is citric acid derived from lemon.

Citric acid provides the sourness and acidity. Svarjiksara neutralizes it, releasing CO₂ gas. The effervescence is identical to Western Alka‑Seltzer, but the ingredients are described in Ayurvedic pharmacopoeia terms. The underlying acid–base neutralization is the same — only the terminology differs.

Where does the probiotic in the formulation come from? Dahi - Curd! 

Why are the names in Sanskrit? Because that kind of naming in Ayurvedic pharmacopoeia terms qualifies it for an Ayurvedic medicine manufacturing license which means fees and compliance burden are lower. So just like Eno which is essentially sodium bicarbonate + citric acid, it is permissible as an Ayurvedic digestive formulation.

While Ayurvedic license is governed under the Drugs & Cosmetics Act, 1940 (Ayurveda, Siddha, Unani section), allopathic license requires approval from CDSCO (Central Drugs Standard Control Organization) and involves clinical trials, pharmacovigilance, bioequivalence studies, and stricter GMP standards. The license has a much higher cost and longer timelines. Renewal and regulatory audits are more intensive.

Products like Vicks VapoRub and Eno fruit salt are marketed under the Ayurvedic license category in India. Vicks contains menthol, camphor, eucalyptus oil — all listed in Ayurvedic pharmacopoeia.

Ayurvedic OTC products can be marketed more freely than allopathic medicines. “Ayurvedic” carries a trust and safety halo in India.

Remember - If the label has tiny font and you want to clearly see the ingredients, just scan the product’s barcode with the Open Food Facts app to know exactly what you’re consuming and whether it’s worth what you’re paying.

co-written with Copilot