Your doctor will prescribe your exact dose and tell you how often it should be given. This medicine is given as a shot under your skin, into a muscle, or into a vein.
A nurse or other trained health professional will give you this medicine.
You may be taught how to give your medicine at home. Make sure you understand all instructions before giving yourself an injection. Do not use more medicine or use it more often than your doctor tells you to.
Look at the medicine before injecting it. If it has changed color, or has particles in it, do not use it. Call your doctor or pharmacist.
It may take as long as 15 minutes after injection for you to feel any pain relief. Do not use more medicine than your doctor has ordered.
If a dose is missed:
Use your medicine as soon as possible unless it is almost time for your next dose.
Skip the missed dose if it is almost time for your next regular dose.
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
Make sure your doctor knows if you are also using alcohol, other pain killers, or other medicines that make you sleepy such as sleeping pills, cold and allergy medicine, or medicines for depression or nervousness.