Vicodin and most other tablet form opiates can be fairly easily distilled into a pure liquid form and injected. This greatly increases the potency of the narcotic effect as opposed to oral ingestion. Also it removes the potential for liver poisoning by removing the Tylenol.

A simple process to do this is to take the Vicodin tablets and drop them in a cup of boiling water and stir them untill they dissolve. This will cause the ingredients of the Vicodin to separate. The hydrocodone (synthetic form of codeine) is water soluble and will dissolve into the water. However, the acetaminophen (Tylenol) and the inactive ingredients will stay in powder form. Cool the solution with ice cubes. Now break off the filter to a cigarette. Stick the hypodermic needle into the filter and suck up the liquid part of the solution. This will filter out almost all of the powder.

Warning: Injection of opiates is much more potent than ingestion. One whe does this should be very carefull not to overdose. Also track marks are nasty.