🛠️ Invention or technique

Azithromycin

Azitromicina

Date
1980 · confidence high
Place
Pliva, Zagreb, Croatia
Credited to
Gabrijela Kobrehel, Slobodan Đokić and Zrinka Tamburašev (Pliva)
Field
Life & health

What it is

A semisynthetic 15-membered macrolide antibiotic derived from erythromycin, with greater acid stability and a long half-life that allows courses of just a few days. It was discovered in the laboratory of the Yugoslav pharmaceutical firm Pliva.

It was patented in 1981 in Yugoslavia and marketed there in 1988; Pfizer's 1986 licence made the product a worldwide success. Bacterial resistance to the drug is now a growing problem.

What it led to

  • short courses for respiratory, ear and sexually transmitted infections
  • licensing to Pfizer (1986) and worldwide marketing as Zithromax
  • one of the most prescribed antibiotics in the world
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Sources✓ verified 2026-10-09