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how do I get caffeine out of my system

A 42-year-old member asked:
Dr. Susan Uhrich
35 years experience Psychiatry
Only time: Can provide the breakdown of caffeine you are looking for. Better to avoid it in the first place.

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A 28-year-old male asked:
Dr. Gurmukh Singh
48 years experience Pathology
Variable: Usual half life of caffeine is 3-7 hours. It takes about 10 half lives for the chemical to become undetectable. Use of tobacco, birth control pills, p ... Read More
A 49-year-old member asked:
Dr. Michelle Zetoony
17 years experience Sleep Medicine
Water: Water and lots of it. It is generally metabolized relatively quickly but dilution is the key. You can also use activated charcoal but this is rough. ... Read More
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A 28-year-old female asked:
Dr. Marie Trenga
35 years experience Family Medicine
Wait: For an acute overdose wait for it to be metabolized, unless you are talking about serious side effects such as very high heart rate, muscle twitching ... Read More
A 39-year-old female asked:
Dr. Clarence Grim
56 years experience Endocrinology
Coffee: It will go out on its own. From now on I would avoid this. Call avoiding caff before bedtime good judgement from now on. You know where good judgeme ... Read More
A 20-year-old female asked:
Dr. Douglas Bey
56 years experience Psychiatry
Stimulant: Caffeine is a stmulant and if you avoid it a small amount can evoke a strong response--heavy users become tolerant and unresponsive--can drink a pot o ... Read More
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A 22-year-old member asked:
Dr. George Valdez
Specializes in Family Medicine
Depends: Depends on size and age of the person, and what else is in the system, but the half life is 3 to 12 hours.
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A 17-year-old male asked:
Dr. Alan Wartenberg
A Verified Doctor answered
A US doctor answered Learn more
Variable: In general, it is short-acting, with a half-life of about 3 hours, but there may be genetic differences as well as drug/drug and drug/food interaction ... Read More
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A 24-year-old female asked:
Dr. Julia Aharonov
24 years experience Anesthesiology
A long time...: It stays in your body longer than you might think. Half life of caffeine can be anywhere from three to seven hours which means it can stay in your sys ... Read More
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A 24-year-old female asked:
Dr. Gregory Seagraves
16 years experience Pharmacology
Caffeine: A caffeine peak occurs approximately 2 hours after ingestion. The biological half-life of caffeine is about 5 hours. This means that the caffeine shou ... Read More
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