Who uses plop plop fizz fizz oh what a relief it is?

The phrase "Plop plop fizz fizz, oh what a relief it is" is famously associated with Alka-Seltzer, an antacid and pain relief medication. It was popularized in a memorable advertising campaign in the 1970s. The slogan is used by consumers seeking relief from indigestion or headaches, as well as in pop culture references. This catchy phrase has become synonymous with quick relief solutions.