It's called your metabolism, and it's the sum of everything your body does. Each time you eat, enzymes in your body's cells break down the food and turn it into energy that keeps your heart beating, your mind thinking, and your legs churning during a grueling workout. A fast metabolism means more calories burned. The more you burn, the easier it is to drop pounds. And get thisâyou can make increase you metabolism so it works harder, a lot harder, 24 hours a day. To some degree, our bodies hum along at a preset speed determined by gender and genetics, but there's still plenty of wiggle room.
Best Answer: Its also in Benadryl FYI. It all depends on metabolism and when you last ate. Its different for everyone. It can take 20 minutes, it can take an hour and a half. Taking more won't help, dosages between 150mg and 850mg can get you high, so don't take too much if you don't want that to happen. It becomes a deliriant/hallucinogen at those dosages.
If you do not have a dose-measuring device, ask your pharmacist where you can get one. Never take more of Benadryl than is prescribed for you. The maximum amount of diphenhydramine that you should take in any 24-hour period is 300 mg. Store Benadryl at room temperature away from moisture and heat.