Diarrhoea could be either due to protozoal (amoebiasis, giardiasis
) or bacterial infection. Metrogyl is effective in protozoal infection
in bacterial infection. But metrogyl is not useful in carrier states. The Ameobic cysts cause reinfection and Metrogyl is not effective in eradicating them. Also Metrogyl causes unpleasent side effects like mettalic taste, nausea, dizziness & vertigo quite freequently. Chloromycetin is abroad spectrum antibiotic effective but results in serious side effects & hence used only as a last resort. So you can use the combined preparation of Ofloxacin (200mg) & Ornidazole
(500mg) 2 tablets two times a day for five days along with cap.lactobacillus
once a day. This will be effective in both protozoal & bacterial infections. Alcohol to be avoided strictly as it will interact with ornidazole.