Tobradex is a combination product used for bacterial infections. What are its components?

• A. Tobramycin and dexamethasone
• B. Ciprofloxacin and prednisolone
• C. Gentamicin and loteprednol
• D. Ofloxacin and dexamethasone

Answer: (A)

Tobradex combines an antibiotic with a steroid to treat bacterial eye infections that are inflamed. The antibiotic in Tobradex is tobramycin, an aminoglycoside that binds the bacterial 30S ribosomal subunit and inhibits protein synthesis, making it active against many common ocular pathogens. The steroid is dexamethasone, which reduces inflammation, swelling, and pain in the eye, helping healing and comfort during infection.

Other options pair different antibiotics and steroids that are not in Tobradex (for example, ciprofloxacin with prednisolone, or gentamicin with loteprednol), or use a different antibiotic-steroid combo altogether. So the correct components are tobramycin and dexamethasone.