Question 1

for what length of time do caffeine withdrawal spells last?

Accepted Answer

Sev days to 2 weeks: They normally resolve within two weeks after your last significant caffeine use.

Question 2

for what length of time can a person survive on stimulators like caffeine without sleeping?

Accepted Answer

Survival: Generally, sleep deprivation in a human that can contribute to actual death is about 5-7 days.  Although we don't know for sure by experimenting as this is not ethical.    Generally the body will go into sleep without the person even knowing it, aka sleep attacks.  Pretty dangerous because it can happen out of the blue, like during driving or walking.

Question 3

how long does caffeine stays in your system? cause i have stress test tomor and i ate a piece of chocolate cake at 4 pm

Accepted Answer

Not a problem: Generally, you're asked not to have any after midnight the night before.

Question 4

i just drank a lot of caffeine and i'm on zyprexa. i heard caffeine increases the time zyprexa stays in your system bc they both metabolize the same?

Accepted Answer

Not dangerous : It can affect the metabolism but unless you are at dangerous levels of caffeine you are safe with the change in Zyprexa metabolism.

Question 5

how long before an average cup of coffee enters your system..what would the caffeines peak time and half life be?

Accepted Answer

? cup of coffee but: For coffee, peak time ; 1/2 life depend upon amount ; binding capacity of active metabolites which vary with brands.
For otc caffeine pills the half life assuming normal liver and kidney functioning is 3-7/hrs.   
The metabolism is thru the livers cyp450 enzyme system: 1a2 substrate. Information obtained from epocrates online.

Question 6

how long does the body takes to get rid of caffeine?

Accepted Answer

Caffiene: Usual adult half life of caffeine is 5 hours meaning the time required by the body to eliminate half of the amount ingested, smoking can double it, contraceptive pills can triple it and meds like Luvox (fluvoxamine) can increase the half life up-to 56 hours, caffeine is absorbed in the small intestine and reaches its peak in 1 hour.

Question 7

how long does it take the body to adjust to caffeine withdrawal?

Accepted Answer

1 to 2 wks: Although it tends to vary the adjustment may be as long as 2 wks.

Question 8

i get a weird "half there" tingling sensation when i consume caffeine or alcohol (not every time) its my entire body, like my blood is effected?

Accepted Answer

Body tingling: There are many possibilities.  Try to stop all caffeine and alcohol and see if you eliminate the problem.  See your doctor for diagnosis and treatment.

Question 9

what effect can caffeine have on the body over time? im worried i consume to much, and that my heart flutters are associated with my caffeine intake.

Accepted Answer

Various: Too much caffeine can give you headaches, insomnia, stomach pains, increase urination, increase heart rate. One or two cups a day is okay.

Question 10

does consuming caffeine for a period of time cause our body to become warm? today my feet were very hot while walking and i felt sleepy during daytime

Accepted Answer

Caffeine: Consuming caffeinated beverages can have several potential outcomes. It really depends on how it affects you personally. A good piece of advice is not to drink caffeine and access. Others, due to unwanted side effects, should just avoid caffeine altogether. However, your symptoms sound a little bit strange and I recommend a thorough evaluation with  physician when it is convenient for you. I wish you the best

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Doctor answers about:

Length of time caffeine stays in body

A member asked:

For what length of time do caffeine withdrawal spells last?

A member asked:

For what length of time can a person survive on stimulators like caffeine without sleeping?

A member asked:

How long does caffeine stays in your system? cause i have stress test tomor and i ate a piece of chocolate cake at 4 pm

A member asked:

I just drank a lot of caffeine and i'm on zyprexa. i heard caffeine increases the time zyprexa stays in your system bc they both metabolize the same?

A member asked:

How long before an average cup of coffee enters your system..what would the caffeines peak time and half life be?

A member asked:

How long does the body takes to get rid of caffeine?

A member asked:

How long does it take the body to adjust to caffeine withdrawal?

A member asked:

I get a weird "half there" tingling sensation when i consume caffeine or alcohol (not every time) its my entire body, like my blood is effected?

A member asked:

What effect can caffeine have on the body over time? im worried i consume to much, and that my heart flutters are associated with my caffeine intake.

A member asked:

Does consuming caffeine for a period of time cause our body to become warm? today my feet were very hot while walking and i felt sleepy during daytime

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