What Should I Know Before Using Caffeine? in children less than 12 years of age over-the-counter (OTC) caffeine formulations are not proven safe and effective for use in this age group.if you are allergic to any ingredient in caffeine or caffeine products.It is used for short-term treatment of neonatal apnea (breathing problems).Ĭaffeine may also be used for other conditions as determined by your health care provider. Caffeine is also found in some headache and migraine medications, in certain dietary supplements used for weight loss, and in many popular energy drinks.Ĭaffeine citrate ( Cafcit) is available by prescription only. Caffeine is also available in prescription and non-prescription medications.Ĭaffeine is used to restore mental alertness or wakefulness during fatigue or drowsiness. Botanical sources of caffeine include kola nuts, guarana, and yerba mate. Caffeine is found naturally in foods and beverages such as coffee, tea, colas, energy and chocolate. Last updated on Aug 22, 2023.Ĭaffeine is a central nervous system stimulant.

Medically reviewed by Philip Thornton, DipPharm. (NoDoz), GlaxoSmithKline Consumer Healthcare (Viviarin) 7, 2022.Brand names: NoDoz, Vivarin, Revive, Stay Awake, Enerjets, LucidexĬompanies: various generic manufacturers, Novartis Consumer Health, Inc. Spilling the beans: How much caffeine is too much? U.S.Department of Health and Human Services and U.S. 2020-2025 Dietary Guidelines for Americans.Journal of Human Nutrition and Dietetics. Caffeine ingestion and fluid balance: A review. Journal of Science in Medicine and Sport. Caffeine and diuresis during rest and exercise: A meta-analysis. No evidence of dehydration with moderate daily coffee intake: A counterbalanced cross-over study in a free-living population. Variation in human water turnover associated with environmental and lifestyle factors. It's calorie-free, caffeine-free, inexpensive and easily available. Overall, water is probably your best bet to stay hydrated. Other, more-common issues people have reported after drinking caffeinated drinks are trouble sleeping, loose stools and upset stomach.

That is less than half a teaspoon of caffeine in powder form. Caffeine poisoning can happen with 1,200 milligrams of pure caffeine, according to the FDA. Chest pain, irregular heartbeat and stroke have been reported when people take this much caffeine. If a person weighs 165 pounds (about 75 kilograms), a very high dose is about 750 milligrams of caffeine in a day. Very high doses of caffeine, greater than 10 milligrams per kilogram daily, are linked to serious health conditions. They also suggest that people who are pregnant or nursing talk to their health care providers if they have questions about caffeine. For kids age 2 or younger, dietary guidelines for Americans suggest avoiding drinks with caffeine. There is no safe limit identified for others. The limit is 400 milligrams a day for adults. Food and Drug Administration (FDA) has set a daily limit for total caffeine. That will help you stay at a safe level for your total intake of caffeine. So it's important to read the labels on these beverages. This is more likely if you aren't used to caffeine.Ĭaffeinated drinks are available for every time of day. High doses of caffeine taken all at once may increase the amount of urine the body makes. But most research suggests that the fluid in caffeinated drinks balances the diuretic effect of typical caffeine levels. As a chemical, caffeine increases production of urine, which means caffeine is a diuretic.

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