Brand Name

    US Brand Name

    Sublimaze


    Description

    Fentanyl injection is used to relieve severe pain during and after surgery. It is also used with other medicines just before or during an operation to help the anesthetic (numbing medicine) work better.

    Fentanyl belongs to the group of medicines called opioid analgesics (pain medicines). It acts in the central nervous system (CNS) or brain to relieve pain. Some of its side effects are also caused by actions in the CNS such as drowsiness or dizziness.

    This medicine is to be given only by or under the immediate supervision of your doctor.

    This product is available in the following dosage forms:

    • Solution

    Before Using

    In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:

    Allergies

    Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

    Pediatric

    Appropriate studies have not been performed on the relationship of age to the effects of fentanyl injection in children younger than 2 years of age. Safety and efficacy have not been established.

    Geriatric

    Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of fentanyl injection in the elderly. However, elderly patients are more likely to have age-related lung, kidney, liver, or heart problems, which may require caution and an adjustment in the dose for patients receiving fentanyl injection.

    Breastfeeding

    There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.

    Drug Interactions

    Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are receiving this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

    Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.

    • Levoketoconazole
    • Mifepristone
    • Naltrexone
    • Safinamide
    • Samidorphan

    Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

    • Abametapir
    • Acepromazine
    • Aclidinium
    • Alefacept
    • Alfentanil
    • Almotriptan
    • Alprazolam
    • Amantadine
    • Amifampridine
    • Amiloride
    • Amineptine
    • Amiodarone
    • Amitriptyline
    • Amitriptylinoxide
    • Amobarbital
    • Amoxapine
    • Amphetamine
    • Amprenavir
    • Anileridine
    • Apalutamide
    • Aprepitant
    • Aripiprazole
    • Aripiprazole Lauroxil
    • Armodafinil
    • Asciminib
    • Asenapine
    • Atazanavir
    • Atropine
    • Avacopan
    • Baclofen
    • Belladonna
    • Belzutifan
    • Bemetizide
    • Bendroflumethiazide
    • Benperidol
    • Bentazepam
    • Benzhydrocodone
    • Benzphetamine
    • Benzthiazide
    • Benztropine

    Other Interactions

    Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

    Using this medicine with any of the following is usually not recommended, but may be unavoidable in some cases. If used together, your doctor may change the dose or how often you use this medicine, or give you special instructions about the use of food, alcohol, or tobacco.

    • Ethanol
    • Grapefruit Juice

    Other Medical Problems

    The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:

    • Adrenal problems or
    • Brain tumor, history of or
    • Breathing or lung problems (eg, COPD, respiratory depression, sleep apnea) or
    • Cor pulmonale (serious heart condition) or
    • Drug dependence, especially opioid use disorder, or history of or
    • Head injury, history of or
    • Heart disease or
    • Hypokalemia (low potassium levels in the blood) or
    • Hypomagnesemia (low magnesium levels in the blood)—Use with caution. May increase risk for more serious side effects.
    • Bradycardia (slow heart rhythm) or
    • Gallbladder problems or
    • Heart rhythm problems (eg, QT prolongation) or
    • Hypertension (high blood pressure) or
    • Hypotension (low blood pressure) or
    • Pancreatitis (inflammation or swelling of the pancreas) or
    • Seizures, history of—Use with caution. May make these conditions worse.
    • Kidney disease or
    • Liver disease—Use with caution. The effects may be increased because of slower removal of the medicine from the body.

    Proper Use

    A doctor or other trained health professional will give you or your child this medicine in a hospital. This medicine is given as a shot into a muscle or vein.


    Precautions

    It is very important that your doctor check you closely while you or your child are receiving this medicine. This will allow your doctor to see if the medicine is working properly and to decide if you should continue to receive it.

    This medicine may cause a serious allergic reaction called anaphylaxis, which can be life-threatening and require immediate medical attention. Call your doctor right away if you or your child have a rash, itching, hoarseness, trouble breathing, trouble swallowing, or any swelling of your hands, face, or mouth while you are using this medicine.

    Do not use too much of this medicine or use it more often than your doctor tells you to. This can be life-threatening. Signs of an overdose include: change or loss of consciousness, cold, clammy skin, coughing that sometimes produces a pink frothy sputum, decreased awareness or responsiveness, extreme dizziness or weakness, increased sweating, irregular, fast, or slow, or shallow breathing, pale or blue lips, fingernails, or skin, sleepiness or unusual drowsiness, slow heartbeat, seizures, swelling in legs and ankles, or trouble breathing. Call your doctor right away if you notice these symptoms.

    Dizziness, lightheadedness, or fainting may occur with this medicine, especially when you get up suddenly from a lying or sitting position. Getting up slowly may help lessen this problem. Also, lying down for a while may relieve the dizziness or lightheadedness.

    This medicine will add to the effects of alcohol and other central nervous system (CNS) depressants. CNS depressants are medicines that slow down the nervous system, which may cause drowsiness or make you less alert. Some examples of CNS depressants are antihistamines or medicine for hay fever, allergies, or colds, sedatives, tranquilizers, or sleeping pills, prescription pain medicine or opioids, barbiturates or seizure medicines, muscle relaxants, or anesthetics (numbing medicines), including some dental anesthetics. This effect may last for a few days after you stop using this medicine. Check with your medical doctor or dentist before taking any of the above while you or your child are receiving this medicine.

    This medicine may cause sleep-related breathing problems (eg, sleep apnea, sleep-related hypoxemia). Your doctor may decrease your dose if you have sleep apnea (stop breathing for short periods during sleep) while using this medicine.

    This medicine may make you dizzy, drowsy, confused, or disoriented. 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 not alert.

    This medicine may be habit-forming. If you feel that the medicine is not working as well, do not use more than your prescribed dose. Call your doctor for instructions.

    Using opioids for a long time can cause severe constipation. To prevent this, your doctor may direct you to take laxatives, drink a lot of fluids, or increase the amount of fiber in your diet. Be sure to follow the directions carefully, because continuing constipation can lead to more serious problems.

    If you have been using this medicine regularly for several weeks or more, do not change your dose or suddenly stop using it without checking with your doctor. Your doctor may want you to gradually reduce the amount you are using before stopping it completely. This may help prevent worsening of your condition and reduce the possibility of withdrawal symptoms, such as abdominal or stomach cramps, anxiety, fever, nausea, runny nose, sweating, tremors, or trouble sleeping.

    If you think you have, or someone else has, taken an overdose of this medicine, get emergency help at once. Your healthcare provider may prescribe naloxone to treat an overdose. Naloxone is a medicine that can temporarily reverse the effects of an overdose. If you have been prescribed naloxone, or purchased it over-the-counter, make sure your household members know how to use it in the event of an overdose. Emergency help is still needed after naloxone is used because the reversal effects are only temporary. Signs of an overdose include: change or loss of consciousness, cold, clammy skin, coughing that sometimes produces a pink frothy sputum, decreased awareness or responsiveness, extreme dizziness or weakness, increased sweating, irregular, fast, or slow, or shallow breathing, pale or blue lips, fingernails, or skin, sleepiness or unusual drowsiness, slow heartbeat, seizures, swelling in legs and ankles, or trouble breathing. Call your doctor right away if you notice these symptoms.

    This medicine may increase risk for muscle rigidity and movement. Tell your doctor if you or your child have stiff or rigid muscles after using this medicine.

    Call your doctor right away if you have worsening of pain, increased sensitivity to pain, or new pain after taking this medicine. These may be symptoms of opioid-induced hyperalgesia and allodynia.

    Check with your doctor right away if you have anxiety, restlessness, a fast heartbeat, fever, sweating, muscle spasms, twitching, nausea, vomiting, diarrhea, or see or hear things that are not there. These may be symptoms of a serious condition called serotonin syndrome. Your risk may be higher if you also take certain other medicines that affect serotonin levels in your body.

    This medicine may cause adrenal gland problems. Check with your doctor right away if you have darkening of the skin, diarrhea, dizziness, fainting, loss of appetite, mental depression, nausea, skin rash, unusual tiredness or weakness, or vomiting.

    Using this medicine while you are pregnant may cause neonatal withdrawal syndrome in your newborn babies. Tell your doctor right away if your baby has an abnormal sleep pattern, diarrhea, a high-pitched cry, irritability, shakiness or tremors, weight loss, vomiting, or fails to gain weight.

    Using too much of this medicine may cause infertility (unable to have children). Talk with your doctor before using this medicine if you plan to have children.

    Do not eat grapefruit or drink grapefruit juice while you are using this medicine.

    Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.


    Side Effects

    Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

    Check with your doctor or nurse immediately if any of the following side effects occur:

    More common

    • Chest pain or discomfort
    • difficult or troubled breathing
    • irregular, fast or slow, or shallow breathing
    • lightheadedness, dizziness, or fainting
    • pale or blue lips, fingernails, or skin
    • severe muscle stiffness
    • slow or irregular heartbeat
    • unusual tiredness

    Incidence not known

    • Blurred vision
    • change in consciousness
    • chest tightness
    • chills
    • confusion
    • cough
    • difficulty with swallowing
    • fast heartbeat
    • feeling cold
    • headache
    • hives, itching, or skin rash
    • inability to move the eyes
    • inability to sit still
    • increased blinking or spasms of the eyelid
    • increased sensitivity to pain
    • nervousness
    • pounding in the ears
    • puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
    • restlessness
    • seeing, hearing, or feeling things that are not there
    • sticking out the tongue when not meaning to
    • sweating
    • uncontrolled twisting movements of the neck, trunk, arms, or legs
    • unusual facial expressions
    • worsening of pain

    Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

    Incidence not known

    • Bleeding, blistering, burning, coldness, discoloration of the skin, feeling of pressure, hives, infection, inflammation, itching, lumps, numbness, pain, rash, redness, scarring, soreness, stinging, swelling, tenderness, tingling, ulceration, or warmth at the injection site
    • increased sweating
    • redness of the skin
    • vomiting
    • welts

    Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

    Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.






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