Pharmacology A person on anti–tubercular drugs complained of deafness and tinnitus in one ear. Drug implicated is : A Streptomycin B Isoniazid C Ethambutol D Rifampicin 💡 Explanation A person on anti–tubercular drugs complained of deafness and tinnitus in one ear. Drug implicated is : ✓ Correct Answer: A. Streptomycin