November 17, 2010
FDA warned four companies that the caffeine added to their alcoholic malt beverages is an 'unsafe food additive' and said that further action, including seizure of their products, is possible under federal law.
Caffeine, even in the afternoon, can interfere with your sleep. Even small amounts of sleep loss can add up and disturb your daytime alertness and performance. Using caffeine to mask sleep deprivation can create an unwelcome cycle. For example, you may drink caffeinated beverages because you have trouble staying awake during the day. This double-blind experiment examined the effects of a caffeinated sports drink during prolonged cycling in a warm environment. Sixteen highly trained cyclists completed 3 trials: placebo, carbohydrate-electrolyte sports drink (CES), and caffeinated sports drink (CES+CAF). Subjects cycled for 135 mi. Synonym: N,1-Dimethyl-4-(Methylamino)-1H-Imidazole-5-Carbocamide Nitrate (Caffeine Impurity E Nitrate) (Caffeidine Nitrate) Empirical Formula (Hill Notation): C 7 H 13 N 5 O 4 Molecular Weight: 231.21.
The four manufacturers and their products are:
Charge Beverages Corporation, which makes 'Core High Gravity HG Green,' 'Core High Gravity HG Orange,' and 'Lemon Lime Core Spiked'*
Caffeinated 1 17 15
New Century Brewing Company, LLC, which makes 'Moonshot'*
Phusion Projects, LLC (doing business as Drink Four Brewing Company), which makes 'Four Loko'*
United Brands, which makes 'Joose' and 'Max'*
* View larger images.
Additional Information
Related Information
Prevent your computer from going to sleep
If you have problems with your PC locking or going to sleep, caffeine will keep it awake. It works by simulating a keypress once every 59 seconds, so your machine thinks you're still working at the keyboard, so won't lock the screen or activate the screensaver.
The icon is shown above - it's the leftmost one in the task tray, and this is all you see. Handsfree 2 2 5 4. Double-clicking the icon empties the coffee pot (that's what the icon is) and temporarily disables the program. Double-clicking it again refills the pot, and will keep your machine awake.
By default the app starts enabled, and works every 59 seconds. There are some command line switches you can use to alter this behaviour:
xx
- where xx is a number which sets the number of seconds between simulated keypresses. This must be the first text on the commandline-startoff
- application starts disabled.-exitafter:xx
- application will terminate after xx minutes-activefor:xx
- application will become inactive after xx minutes-inactivefor:xx
- application will become active after xx minutes-appexit
- terminates current running instance of application-appon
- makes the current running instance of the application active-appoff
- makes the current running instance of the application inactive-apptoggle
- toggles the running state of the current running instance of the application-apptoggleshowdlg
- toggles the running state, and shows dialog-replace
- closes the current running instance, replacing it-noicon
- does not show a task tray icon-useshift
- simulate the shift key instead of F15-showdlg
- shows a dialog indicating whether caffeine is active-ontaskbar
- show a task bar button (use with -showdlg)-allowss
- prevent sleep, but allow the screensaver to start-key:xx
- simulate using virtual key code xx
Note: the codes on the linked page are in Hex, convert them to decimal for use with this parameter-keypress
- simulate a full key press, not just a key up event-oldicons
- use more colourful tray icons-darkicons
- use icons which work better for dark-on-light colour schemes-watchwindow:xx
- active only when a window with xx in the title is found
Compatibility
Caffeine works by simulating an F15 key up event every 59 seconds. Of all the key presses available, F15 is probably the least intrusive, and least likely to interfere with your work.
However, Caffeine might interfere with some apps:
- PowerPoint uses the F15 keypress to pause video in a slide
- Google Docs/Sheets
- Smartsheet
- Terminal emulation, e.g. Putty
If you think any of these might cause you a problem, set the
-useshift
command line parameter.Video
Caffeine user humancar2n has put together a short YouTube video showing how the app works.
Mac version
![Caffeinated 1 17 16 Caffeinated 1 17 16](https://i5.walmartimages.com/asr/cae8ffa1-0eef-4916-b236-dabab4c37292_1.205a360809c09fab85ed0126c93a7240.jpeg?odnWidth=612&odnHeight=612&odnBg=ffffff)
Do you need this functionality on your Mac? Lighthead Software have written a separate app, also named Caffeine, which can help you out.
Versions
v1.81 - May 2020
Bug with the
-watchwindow
command line fixedv1.80 - January 2020
v1.64 - September 2017
Option for old icons added, 'cos not everyone likes the new ones
v1.63 - February 2017
Icons updated slightly to show up better on a white background.
v1.62 - April 2016
New icons, designed by Rubén Gómez Radioboy
v1.61 - October 2015
Fixed bug with app not going active/inactive correctly when a timed period elapsedv1.60 - July 2013
New command line options:
-allowss
-ontaskbar
-apptoggleshowdlg
-key:xx
-keypress
Added menu items to go Active/Inactive
Type in About box corrected
Caffeinated 1 17 20
-apptoggle
will re-show the dialog if it was originally shownv1.50 - November 2010
New command line options:
-inactivefor
-showdlg
-apptoggle
Simulated keypress changed from right context menu key to F15 as this is likely to be even less intrusive.
v1.40 - July 2009
New command line options:
-replace
-noicon
-useshift
Caffeinated 1 17 16
Hovering over the tray icon now shows the status of the app
v1.35 - May 2009
Simulated keypress changed from shift to the right context menu key (at the suggestion of Kevin Kleinfelter) as this is likely to be less intrusive.
v1.30 - February 2009
Caffeinated 1 176
Command line switches added to terminate the app after x minutes, disable the app after x minutes, and enable or disable the currently running instance of the app
v1.20 - March 2008
Command line switches added to set the interval and to start disabled