Which pharmaceutical product was first marketed in the 1990s with the tagline "The 24-Hour Acid Blocker" and revolutionized treatment for acid reflux and ulcers?

Test your knowledge of pharmaceutical brand history with this challenging question about a groundbreaking medication that revolutionized treatment for millions of patients worldwide. This product's development marked a significant milestone in medical history, changing how we approach a common but serious condition. See if you can identify this influential medication from its original marketing tagline.

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Prilosec (omeprazole)
Zantac (ranitidine)
Nexium (esomeprazole)
Pepcid (famotidine)