Hush

Hush is a narcotic painkiller. It has a high risk for addiction and dependence and can cause respiratory distress/asphyxia and death when taken in high doses or when combined with other substances, especially alcohol. Despite these risks though, it is a popular street drug because it stimulates the brain's reward system.

It is injectable, takes about 20 minutes to start working, and lasts 3 to 7 hours.

Possible side effects include:
 * Shortness of breath/trouble breathing
 * Slowed heartbeat
 * Drowsiness, dizziness, or confusion
 * Sweating
 * Nausea or vomiting

Withdrawal symptoms include:
 * Agitation
 * Anxiety
 * Depression
 * Chills
 * Muscle aches
 * Insomnia
 * Sweating
 * Abdominal cramping
 * Dilated pupils
 * Goosebumps
 * Nausea
 * Vomiting