This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
A lady presented with creamy white vaginal discharge with fishy odour, the drug of choice is: 
Select and explain. 
A. Doxycycline, B. Ofloxacine, C. Clindamycin, D. Metronidazole
D: Metronidazole
Answer: D: Metronidazole 
Explanation: Symptoms are suggestive of trichomoniasis
Metronidazole 200mg by mouth 3 times a day for 7 days prescribed for both partners, and adviced to abstain from intercourse or use condomduring therapy.
It is best taken after meals otherwise nausea and vomiting can occur