Alfenta; Alfentanil Injection, USP
- This drug is a strong pain drug that can put your child at risk for addiction, abuse, and misuse. Misuse or abuse of this drug can lead to overdose and death. Talk with your child’s doctor.
If your child is pregnant:
- Using this drug for a long time during pregnancy may lead to withdrawal in the newborn baby. This can be life-threatening. Talk with the doctor.
- It is used to put your child to sleep for surgery.
- It is used to ease pain.
- If your child has an allergy to this drug or any part of this drug.
- If your child is allergic to any drugs like this one or any other drugs, foods, or other substances. Tell the doctor about the allergy and what signs your child had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
- Tell all of your child’s health care providers that your child is taking this drug. This includes your child’s doctors, nurses, pharmacists, and dentists.
- This drug may cause your child to be less alert.
- This drug may be habit-forming with long-term use.
- If your child has been taking this drug for a long time or at high doses, it may not work as well and your child may need higher doses to get the same effect. This is known as tolerance. Call the doctor if this drug stops working well. Do not give more than ordered.
- If your child has been taking this drug on a regular basis and stops taking it all of a sudden, your child may have signs of withdrawal. Do not stop giving this drug all of a sudden without calling the doctor. Tell the doctor if your child has any bad effects.
If your child is pregnant or breast-feeding a baby:
- Talk with the doctor if your child is pregnant, becomes pregnant, or is breast-feeding a baby. You will need to talk about the benefits and risks of using this drug.
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Very bad dizziness or passing out.
- Fast or slow heartbeat.
- A heartbeat that does not feel normal.
- Trouble breathing, slow breathing, or shallow breathing.
- Feeling confused.
- A very bad and sometimes deadly health problem called serotonin syndrome may happen if your child takes this drug with drugs for depression, migraines, or certain other drugs. Call the doctor right away if your child has agitation; change in balance; confusion; hallucinations; fever; fast or abnormal heartbeat; flushing; muscle twitching or stiffness; seizures; shivering or shaking; sweating a lot; very bad diarrhea, upset stomach, or throwing up; or very bad headache.
- Taking an opioid pain drug like this drug may lead to a rare but very bad adrenal gland problem. Call your child’s doctor right away if your child has very bad dizziness or passing out, very bad upset stomach or throwing up, or if your child feels less hungry, very tired, or very weak.
- Long-term use of an opioid drug like this drug may lead to lower sex hormone levels. This may lead to signs like change in sex ability in males, no menstrual period in females, lowered interest in sex, or fertility problems. If any of these apply to your child, call your child’s doctor.
- Feeling sleepy.
- Upset stomach or throwing up.
- It is given as an infusion into a vein over a period of time.
- It may be given as a shot into a vein.
- Call your doctor to find out what to do.
- If you need to store this drug at home, talk with your child’s doctor, nurse, or pharmacist about how to store it.
- If your child’s symptoms or health problems do not get better or if they become worse, call your child’s doctor.
- Do not share your child’s drug with others and do not give anyone else’s drug to your child.
- Keep a list of all your child’s drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your child’s doctor.
- Talk with your child’s doctor before giving your child any new drug, including prescription or OTC, natural products, or vitamins.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Check with your pharmacist about how to throw out unused drugs.
- Some drugs may have another patient information leaflet. If you have any questions about this drug, please talk with your child’s doctor, nurse, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.