Structurally, Darvocet is a relative of the synthetic narcotic, methadone. It is prescribed in two forms- propoxyphene hydrochloride and propoxyphene napsylate -for relief of mild to moderate pain. Aside from slight differences-the napsylate (or N-form) of propoxyphene is more slowly absorbed in the body and so has a longer duration of action-the two drugs are identical. Darvocet when abused is taken orally, chewed, crushed (then snorted like cocaine), or crushed (then dissolved in water and injected like heroin).

A Darvocet overdose happens when you consume more Darvocet than your body can safely handle. Darvocet abusers are constantly flirting with a Darvocet overdose, and the difference between the high they're seeking and serious injury or death is often quite small. An extreme overdose of Darvocet may lead to unconsciousness and death.

Symptoms of a Darvocet overdose may include:

• bluish tinge to the skin
• coma
• convulsions
• decreased or difficult breathing to the point of temporary stoppage
• decreased heart function
• extreme sleepiness
• irregular heartbeat
• low blood pressure
• pinpoint pupils becoming dilated later
• stupor
• abdominal pain
• excessive sweating
• general feeling of illness
• kidney failure
• liver problems
• loss of appetite
• nausea
• vomiting
• confusion
• deafness
• excessive perspiration
• headache
• mental dullness
• rapid breathing
• rapid pulse
• ringing in the ears
• vertigo
• vomiting