China White Heroin

Heroin Injection:

Intravenous use of heroin (and any other substance) with needles and syringes or other related equipment may lead to:

Contracting blood-borne pathogens such as HIV and hepatitis via the sharing of needles
Contracting bacterial or fungal endocarditis and possibly venous sclerosis
Abscesses
Poisoning from contaminants added to “cut” or dilute heroin
Decreased kidney function (nephropathy), although it is not currently known if this is because of adulterants or infectious diseases

Heroin withdrawal:

The withdrawal syndrome from heroin may begin within as little as two hours of discontinuation of the drug; however, this time frame can fluctuate with the degree of tolerance as well as the amount of the last consumed dose, and more typically begins within 6–24 hours after cessation.

Symptoms may include sweating, malaise, anxiety, depression, akathisia, priapism, extra sensitivity of the genitals in females, general feeling of heaviness, excessive yawning or sneezing, rhinorrhea, insomnia, cold sweats, chills, severe muscle and bone aches, nausea, vomiting, diarrhea, cramps, watery eyes,fever, cramp-like pains, and involuntary spasms in the limbs (thought to be an origin of the term “kicking the habit”