Alka-Seltzer® & Alka-Seltzer Plus® products provide unbeatably fast relief for those who don’t let life slow them down.

Whether you’re dealing with heartburn, a hangover or a headache, Alka-Seltzer® products provide a relief experience that can get you back into the action fast. Or maybe a cold, the flu, …

When you get heartburn, acid indigestion or upset stomach, turn to Alka-Seltzer® Heartburn Relief Extra Strength Effervescent Tablets for fast relief.

Get the pain relief you need with Alka-Seltzer Original Flavor. Our iconic effervescent is specially formulated to provide fast, fizzy relief.

Got questions? We have answers about heartburn relief, hangover relief, what ingredients are in Alka-Seltzer® Original, Extra Strength, Fizz and more.

Alka-Seltzer® contains citric acid and sodium bicarbonate (baking soda). When you drop the tablet in water, the acid and the baking soda react — this produces the fizz.

Alka-Seltzer® Hangover Relief Effervescent Tablets are specially designed to help you bounce back fast, even from your worst hangovers. The unique effervescent formula provides fizzy …

Try an antacid like Alka-Seltzer® Extra Strength Heartburn Relief Effervescent Tablets, which dissolves away heartburn symptoms quickly. Be sure to keep some on hand so you’re …

Alka-Seltzer® Cool Action® Heartburn Relief Gum is back and ready to give you fast relief from heartburn and acid indigestion. Each piece of this extra-strength chewable antacid gum …

Alka-Seltzer Plus® Severe Cold & Flu Effervescent Tablets dissolve in water and are instantly ready to start working. Learn how they help relieve your worst cold and flu symptoms.