⚕️ Efficient Protocol for Waterborne Parasites (Thailand & Vietnam)

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Day Drug Dose Time(s) to take Target Notes
Day 1 Albendazole 400 mg — single dose 20:00 (evening) — take with a fatty meal Common intestinal helminths (Ascaris, hookworm, Trichuris) Baseline deworming; avoid if pregnant. Taking with food enhances absorption.
Days 2–4 Nitazoxanide 500 mg — twice daily (total 6 doses) 08:00 & 20:00 each day (with food) Giardia, Cryptosporidium, Blastocystis, some Entamoeba Preferred broad protozoal course; well tolerated. Do not combine with tinidazole simultaneously.
Days 5–6 Rest / Supportive care Hydration throughout the day; probiotics morning & evening Recovery / assess response Light diet, bottled/boiled water, ORS if loose stools; consider S. boulardii or equivalent probiotic.
Day 7 (optional) Tinidazole (only if persistent symptoms) 2 g — single dose 08:00 (single dose, with food) Amoebiasis or tinidazole-responsive Giardia Use only if no improvement after nitazoxanide; avoid alcohol during and 72 h after dose; not for pregnancy.

  

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