<i>Helicobacter pylori</i> second‐line rescue therapy with levofloxacin‐ and bismuth‐containing quadruple therapy, after failure of standard triple or non‐bismuth quadruple treatments

Fourteen-day bismuth- and levofloxacin-containing quadruple therapy is an effective (≥90% cure rate), simple and safe second-line strategy in patients whose previous standard triple or non-bismuth quadruple (sequential or concomitant) therapies have failed.