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.
Best Answer: It could take up to a week to start seeing lowering of the blood pressure. However, hydrochlorothiazide (HCTZ) starts working (causing increased urination) on the first day you take it. After taking a dose, it can take 30-60 minutes for the drug to get to the site of action (kidney) and start drawing the fluid off.