All are ototoxic drugs except
**Core Concept**
Ototoxicity refers to the damage caused by certain medications to the inner ear, leading to hearing loss, tinnitus, or balance problems. This is often due to the drug's ability to bind to and damage the hair cells in the cochlea or the vestibular system, disrupting normal auditory and vestibular function.
**Why the Correct Answer is Right**
The correct answer is the drug that does not pose a significant risk of ototoxicity. Ototoxicity is most commonly associated with aminoglycoside antibiotics, such as gentamicin, tobramycin, and amikacin. These drugs work by inhibiting protein synthesis in bacterial cells, but they can also bind to and damage the hair cells in the inner ear, leading to ototoxicity. Other ototoxic drugs include loop diuretics like furosemide, platinum-based chemotherapeutic agents like cisplatin, and certain antimalarial medications like quinine.
**Why Each Wrong Option is Incorrect**
**Option A:**
• This option is incorrect because gentamicin is a well-known ototoxic drug, particularly when administered at high doses or in combination with other nephrotoxic agents.
**Option B:**
• This option is incorrect because furosemide is a loop diuretic that can cause ototoxicity, particularly when administered rapidly or at high doses.
**Option C:**
• This option is incorrect because cisplatin is a platinum-based chemotherapeutic agent that is known to cause ototoxicity, particularly in patients receiving high doses or in combination with other ototoxic agents.
**Clinical Pearl / High-Yield Fact**
It's essential to monitor patients receiving ototoxic medications for signs of ototoxicity, such as hearing loss, tinnitus, or balance problems. A thorough medical history and physical examination can help identify patients at risk, and regular hearing tests can help detect ototoxicity early.
**Correct Answer: D.**