Ranitidina Não é Indicada para ITU em Crianças: Use Antibióticos

Ranitidine (H₂ blocker) reduces gastric acid; it has no antibacterial activity and does not treat urinary tract infections.

Appropriate UTI Management in a 10-Year-Old Girl

• Diagnosis: Urinalysis (pyuria, nitrites) + culture (≥50,000 CFU/mL).
• Empiric antibiotics: TMP-SMX, nitrofurantoin, cephalexin — adjusted by local resistance.
• Duration: 3–7 days cystitis; 7–14 days pyelonephritis.
• Imaging: RBUS if febrile/recurrent; VCUG if high-grade reflux suspected.

Why Ranitidine Might Be Confused

Sometimes used for dyspepsia/GERD coexisting with UTI, or historically for stress ulcer prophylaxis in hospitalized children — not for UTI.

Safety Note

Ranitidine withdrawn from many markets (NDMA impurity); famotidine preferred for acid suppression.

Never self-medicate a child's UTI; untreated UTI risks renal scarring, hypertension, sepsis.