What are the symptoms of caffeine withdrawal?

Regular caffeine consumption reduces sensitivity to caffeine. When caffeine intake is reduced, the body becomes oversensitive to adenosine. In response to this oversensitiveness, blood pressure drops dramatically, causing an excess of blood in the head (though not necessarily on the brain), leading to a headache.

This headache, well known among coffee drinkers, usually lasts from one to five days, and can be alleviated with analgesics such as aspirin. It is also alleviated with caffeine intake (in fact several analgesics contain caffeine dosages).

Often, people who are reducing caffeine intake report being irritable, unable to work, nervous, restless, and feeling sleepy, as well as having a headache. In extreme cases, nausea and vomiting has also been reported.


Caffeine and Health. J. E. James, Academic Press, 1991. Progress in Clinical and Biological Research Volume 158. G. A. Spiller, Ed. Alan R. Liss Inc, 1984.



Thanks so much for the above info. This information couldn't be more accurate! I gave up coffee and have been going strong for 7 days (I tried this 2 months ago but it didn't work, my peak is 3 weeks). Lately a few days before my menses I get terrible migraines, cramps, irritability, and lately my blood pressure has been dropping. I decided to give up coffee for this reason and according to my doctor it is my intake of caffeine causing these extreme symptoms (caffeine intoxication). Now that I'm off the coffee and soda (cold turkey) I've been getting panic/anxiety attacks that make me feel so nervous I feel like I can pass out. Let me add I'm not stressed about anything so it's not caused by other contributing factors. PLUS increased heartrate, lowered blood pressure and headaches that come and go. Ughh I so need the support to get thru this bc every morning I have to talk myself out of drinking my morning cup of joe....

Don't drink the joe!! :)

Don't drink the joe!! :) After 3 weeks my anxietys are FINALLY subsiding. I've added some exercise and keep drinking lots of water. I like to imagine my brain getting healthier. All those blood vessels constricted from caffeine use are opening up and allowing more blood to my poor tired brain. More blood carrying more oxygen through exercise and I'm literally becoming a new person. Had a blast tonight joking around with my kids!

Caffeine withdrawal

Thanks! I haven't given up and like you said, I feel amazing. Sure I feel a little tired in the morning but no different than what I felt when I was drinkin coffee. I feel a lot healthier bc I am drinking more water. I feel more energized and alive. The best decision I could ever have made.

I drank an Energy Drink

I quite caffeine about 25 days ago. I used to drink about 2 energy drinks a day and for the first few days after quiting suffered horrible headaches, then it passed and I was fine. The day before yesterday I decided to give myself a little treat by having an energy drink...I didn't think 1 would hurt (big mistake). Yesterday I ended up with a splitting headache. Is it possible that just one energy drink could have sent me back into withdrawal again?


The headache wasn't from withdrawal it was from the caffeine. I know a few people who don't drink coffee because it gives them headaches. Energy drinks have lots of caffeine; a small cup of coffee probably wouldn't have resulted in a headache. I remember getting headaches if I drank a couple cups of strong coffee. I do about 4 cups a day now, and I think its time to quit.


I work and have three kids so I was sucking down the Redbull, soda, coffee and anything I could drink to get a little more energy to get through the day. This week I decided to cut back and try to drink more water, but I started having these weird feelings, nervous jitters, eye twitching and headaches that I could not get rid of. Not realizing it was the caffeine, I took sinus medication and tylenol, but the pain was still there and then nausea set in...ugh. For two days I suffered with this increasing headache thinking that I had some sort of growing tumor causing swelling of the brain...until this morning, I drank a Dr. Pepper. Sure enough, it was "just what the dr ordered" and I confirmed that I am addicted to caffeine. Within an hour of drinking it, the symptoms and pain are all but a memory and sweet relief is mine for the moment. However, now that I know this evil has taken hold of me, I must find a way to get out of it's grasp.
For those of you that have completed the journey and rid yourself of this drug, thank you for showing me it can be done.
I will begin weaning myself off of this drug on September 1st with hopes of full recovery by the New Year. Wish me luck!

Caffiene demon

From 2002 to 2009 I was drinking monster every day (1 can).I literally got high off of green label monster.I got to where my body rejected it and even a sip made me ill.Had to wean myself off by drinking monster-khaos with 50% juice.Then I graduated down to rockstar,now I dont drink any of that sh*t.I feel so much better,physically/mentally.For the record Im very healthy,never smoked or drank,excercise regularly and take supplements.

good for you

me i have stop drink caffine drinks for over a year and continueing. but to tell you the truth i still fell like im dieing and i also dont smoke or drink beer or do drugs.

quitting coffee

I used to drink 5 cups a day, then quit cold turkey in January of '08. The withdrawal effects were brutal for about a week. headaches, tiredness, crankiness. Just recently I started drinking coffee again. Big mistake. After about a week of 1 cup a day, I was getting headaches at night. So the decision was to either up the coffee amount (slow stream throughout the day) to keep the headaches at bay, or quit. I've chosen to quit. I'm now in the withdrawal stage. It's been two days, and the headaches are starting to weaken. Coffee just doesn't work for me. I don't seem to have problems with caffeine in chocolate, though.

Third day

I am on the third day of no caffeine. I usually drink 6-8 cans of diet coke a day. I am in hell. My head hurts, I have trouble focusing, I'm tired, irritable and nauseated. How much longer will this last? The up side is the thought of a diet coke makes me want to puke. I have taken 6 ibuprohen tables since last night. Not working really well.

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