Dang, Caffeine really is a drug, page 1
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reply posted on 12-11-2004 @ 10:13 PM by Simulacra
I found this little chart from the Erowid Vault.

Oral Caffeine Dosages
Threshold 10 - 20 mg
Common 50 - 150 mg
Strong 150 - 400 mg
Heavy 400 + mg
LD50 (Lethal Dose*) 192 mg/kg in rats


Onset : 5 - 10 minutes
Duration : 1.5 - 5 hours
Normal After Effects : up to 24 hours

* LD50 = dose which will kill 50% of the tested animals. It is estimated that fatal doses for humans are between 1 and 4 grams of caffeine, depending on body weight and tolerance.

[edit on 11/12/2004 by Simulacra]


reply posted on 12-11-2004 @ 10:55 PM by taibunsuu
I wonder how much caffeine is in a regular cup of coffee or 20oz Coke.



reply posted on 12-11-2004 @ 10:59 PM by Simulacra
www.faqs.org...

By means of comparison, a 7 oz cup of coffee has the following
caffeine (mg) amounts, according to Bunker and McWilliams in J.
Am. Diet. 74:28-32, 1979:

Drip 115-175
Espresso 100mg of caffeine
1 serving (1.5-2oz)

Brewed 80-135
Instant 65-100
Decaf, brewed 3-4
Decaf, instant 2-3
Tea, iced (12 ozs.) 70
Tea, brewed, imported 60
Tea, brewed, U.S. 40
Tea, instant 30
Mate 25-150mg

And...

According to the National Soft Drink Association, the following
is the caffeine content in mgs per 12 oz can of soda:
Coca-Cola 45.6
Diet Cola 45.6


reply posted on 13-11-2004 @ 08:48 AM by RedBalloon
Originally posted by taibunsuu
A couple days ago, still caffeine free (switched to water instead of sodas and coffee) my friend offered me a Mountain Dew and I drank it at about 10:00pm without thinking anything of it.

Without caffeine, I think I feel overall better and have more energy than when I was on caffeine. I don't need two cups of cofee before my sleepiness goes away when I wake up, for example. I never considered caffeine to be a 'real' drug before I dropped it.


I have hilited in bold the key words in your original post. Hmm.. If all the beverages you drank normally were caffinated, dehydration is a very likely problem. Caffiene, being a stimulant, is a diuretic and tends to clear the body of fluids (ie makes you pee). Symptoms of dehydration include lethargy and a rapid heart rate. If you suddenly stopped caffiene, and replaced your fluids with water, you were probably doing your body a favor in more ways than you realize.

Also, many people don't realize than headaches they get are likely caffiene withdrawl headaches. Ever look at the caffiene content on headache powders like Goody's or the content on a bottle of Excederin?

Caffine is one of the many common drugs we cling to in America. We have your stimulants behind door number one: nicotine, theobromine (chocolate - which also has andamide-like effects that act like THC), and theophylline (tea). Sedatives can settle behind door number two and it's main representative is alcohol. All effect the body in some way. Most of these drugs aren't necessarily bad in reasonable quantities, but be aware of how your body reacts to them. Moderation is a wonderful thing.

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