Stomach flu or gastroenteritis infection signs and symptoms include nausea, vomiting, and diarrhea that lasts for about 7-14 days. The stomach flu is spread from person to person, usually via fecal to oral route from poor hand-washing or hygiene techniques.
Location: Egypt. Posts: 1,672. Re: How long for meds to take effect. It takes from 1 to 2 days in order for your high bp meds to work, but it reach its maximum effect in 1 week and some times it takes 2 weeks. They said that but I think it's only a week, not more than that.
How long does it take for depo-medrol to work it's magic on painful joints? Depo-medrol: Pain response time varies somewhat between individuals. But time of onset is 6 to 48 hours and peak effect is 4 to 8 days by injection and 1 to 2 hours by mouth.