• Demerol, a narcotic analgesic, is used to treat moderate to severe pain.

How should you take this medication?

• Demerol is usually administered as an injection at your doctor's office, hospital, or clinic. You may take this drug with or without food.
   
• To take long-acting hydromorphone capsules do not chew, crush or dissolve. You may take this drug with or without food.
  
  To take the syrup form of Demerol take this medicine mixed with a half glass of water to lessen the numbing effect of the medicine on your mouth and throat.
   
• If you miss a dose of Demerol , take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule.

General Precautions with Demerol

• Avoid drinking alcohol or taking other medications that cause drowsiness while taking Demerol . Demerol will add to the effects of alcohol and other depressants.
   
• This drug may make you dizzy or drowsy. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangerous if you are dizzy or are not alert and clearheaded .
   
• Do not suddenly stop taking Demerol without first checking with your doctor.

What are the possible side effects of Demerol?

• Check with your doctor if any of these common side effects persist or become bothersome: constipation, dizziness, drowsiness, dry mouth, loss of appetite, nausea, sweating, vomiting.