Definition of Zantac in US English:

Zantac

noun

trademark
  • another term for ranitidine
    • ‘Only a handful of drugs boast salience scores at or above 30, including Prilosec, Allegra and Zantac.’
    • ‘Acid reducers, such as Pepcid AC and Zantac, are best taken before meals.’
    • ‘Zantac was considered a powerful acid suppressor.’
    • ‘I've been taking Zantac for the stomach pain.’
    • ‘In the 1980s, names beginning with ‘Z’, such as Zantac, Zocor and Zovirax, were all the rage.’
    • ‘Twenty years ago, prescription acid suppressors like Tagamet, Zantac and Pepcid revolutionized the treatment of ulcers.’

Origin

1970s: probably from Z- + antacid.

Pronunciation

Zantac

/ˈzantak/