Recently, a Salmonella Typhi isolate producing CTX - M - 15 extended spectrum β - lactamase (ESBL) and with
decreased ciprofloxacin susceptibility was isolated in the Democratic Republic of the Congo.
The common fluoroquinolone antibiotic
ciprofloxacin — brand names include Cipro, Proquin, Ciproxin, Ciprobay, Cirpoxine, and Ciflox — have been shown to significantly
decrease absorption of levothyroxine, the common thyroid hormone replacement medication (known by brands names such as Synthroid, Levoxyl, and Tirosint.)