Highlights for nalmefene
nalmefene Side Effects
Side effects that you should report to your doctor or health care professional as soon as possible:
- allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
- breathing problems
- fast, irregular heartbeat
- high blood pressure
- pain that was controlled by narcotic pain medicine
- stomach cramps
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
- aches and pains
- fever or chills
- irritable, nervous, restless
- nausea, vomiting
- runny nose
nalmefene May Interact with Other Medications
- narcotic medicines for pain
How to Use nalmefene
This medicine is for injection into a muscle, injection under the skin, or infusion into a vein. It is given by a health care professional in a hospital or clinic setting.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.
They need to know if you have any of these conditions:
- drug abuse or addiction
- an unusual or allergic reaction to nalmefene, other medicines, foods, dyes, or preservatives
- pregnant or trying to get pregnant
This does not apply.
Your condition will be monitored carefully while you are receiving this medicine.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells.
This drug is given in a hospital or clinic and will not be stored at home.
Last Updated: July 10, 2009