DRUG INTERACTIONS: Tell your doctor of any nonprescription or prescription medication you use, particularly of: other narcotic pain relievers, tranquilizers, muscle relaxers, medication for sleep, anti-anxiety drugs, antidepressants, certain antihistamines (drowsiness-causing antihistamines such as diphenhydramine). Do not start or stop any medicine without doctor or pharmacist approval.

OVERDOSE: If overdose is suspected, contact your local poison control center or emergency room immediately. US residents can call the US national poison hotline at 1-800-222-1222. Canadian residents should call their local poison control center directly. Symptoms of overdose may include cold and clammy skin, slowed breathing, slowed heartbeat, drowsiness, dizziness, lightheadedness, deep sleep, and loss of consciousness.

NOTES: Do not allow anyone else to use this medication. Properly discard used syringes, needles and any other supplies used for injection.

MISSED DOSE: This medication is only given as needed by a health care professional.

STORAGE: Store this medication at room temperature between 59 and 86 degrees F (15 to 30 degrees C) away from heat and light. Do not store in the bathroom. Keep this and all medications out of the reach of children.