It is ok to take Norflox TZ
twice daily for 3 days. There is no harm in taking it. But most of the time, gastroenteritis
is viral in nature, and antibiotics are not always necessary. The main thing to do is rehydrate yourself with plenty of fluids, rice gruel(kanji) with a pinch of salt, etc. I'm assuming there is no blood/mucus in stools, no greenish color in stools. See how you feel in 2 days, if no symptomatic improvement , please visit your doctor.
Hope this helps.
Dr. Divya Kuttikrishnan