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.
To reach max blood pressure benifits clonidine takes 14 -20 days to work so unless you have a native blood pressure that is very low you should have no issues using it for a short period of time. Read More. The clonidine usually starts to work in 20-40 minutes. Peak levels in the blood are at about 4 hrs.