Alfentanil (Intravenous route)

Pronunciation:

al-FEN-ta-nil

Dosage Forms:

Solution

Warnings:

Intravenous route(Solution)

Alfentanil HCl injection exposes users to risks of addiction, abuse, and misuse, which can lead to overdose and death. Assess patient’s risk before prescribing and monitor regularly for these behaviors and conditions .

Classifications:

Therapeutic—

Analgesic

Chemical—

Opioid

Uses of This Medicine:

Alfentanil injection is given together with other medicines to relieve pain during surgery. It is also used as a primary anesthesia (numbing medicine) for patients undergoing general surgery.

This medicine is to be given only by or under the direct supervision of a doctor.

Before Using This Medicine:

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.

Children—

Appropriate studies performed to date have not demonstrated pediatric-specific problems that would limit the usefulness of alfentanil injection in children 12 years of age and older. However, safety and efficacy have not been established in children younger than 12 years of age.

Older adults—

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

Breast-feeding—

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.

Other medicines—

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
Nalmefene
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.

Acepromazine
Adagrasib
Alefacept
Almotriptan
Alprazolam
Amifampridine
Amineptine
Amiodarone
Amitriptyline
Amitriptylinoxide
Amobarbital
Amoxapine
Amphetamine
Amprenavir
Anileridine
Aprepitant
Aripiprazole
Armodafinil
Asciminib
Asenapine
Atazanavir
Avacopan
Baclofen
Belzutifan
Benperidol
Benzhydrocodone
Benzphetamine
Berotralstat
Boceprevir
Bosentan
Bromazepam
Bromopride
Brompheniramine
Buprenorphine
Bupropion
Buspirone
Butalbital
Butorphanol
Calcium Oxybate
Cannabidiol
Cannabis
Carbamazepine
Carbinoxamine
Carisoprodol
Carphenazine
Ceritinib
Cetirizine
Chloral Hydrate
Chlordiazepoxide
Chlorpheniramine
Chlorpromazine
Chlorzoxazone
Ciprofloxacin
Citalopram
Clarithromycin
Clobazam
Clomipramine
Clonazepam
Clopidogrel
Clorazepate
Clozapine
Cobicistat
Cocaine
Codeine
Conivaptan
Crizotinib
Cyclobenzaprine
Cyclosporine
Dabrafenib
Daridorexant
Darunavir
Delavirdine
Desflurane
Desipramine
Desmopressin
Desvenlafaxine
Dexamethasone
Dexmedetomidine
Dextroamphetamine
Dextromethorphan
Dezocine
Diazepam
Dibenzepin
Dichloralphenazone
Difenoxin
Dihydrocodeine
Diltiazem
Diphenhydramine
Diphenoxylate
Dolasetron
Donepezil
Doxepin
Doxylamine
Dronedarone
Droperidol
Duloxetine
Duvelisib
Efavirenz
Eletriptan
Eluxadoline
Enflurane
Enzalutamide
Erdafitinib
Erythromycin
Escitalopram
Esketamine
Eslicarbazepine Acetate
Estazolam
Eszopiclone
Ethchlorvynol
Ethopropazine
Ethylmorphine
Etravirine
Fedratinib
Fenfluramine
Fentanyl
Fexinidazole
Flibanserin
Fluconazole
Fluoxetine
Fluphenazine
Flurazepam
Fluspirilene
Fluvoxamine
Fosamprenavir
Fosaprepitant
Fosnetupitant
Fosphenytoin
Fospropofol
Frovatriptan
Furazolidone
Gabapentin
Gabapentin Enacarbil
Gepirone
Granisetron
Halazepam
Haloperidol
Halothane
Hexobarbital
Hydrocodone
Hydromorphone
Hydroxytryptophan
Hydroxyzine
Idelalisib
Imatinib
Imipramine
Indinavir
Iproniazid
Isocarboxazid
Isoflurane
Itraconazole
Ivacaftor
Ivosidenib
Ketamine
Ketazolam
Ketobemidone
Ketoconazole
Lacosamide
Lanreotide
Larotrectinib
Lasmiditan
Lefamulin
Lemborexant
Lenacapavir
Levocetirizine
Levomilnacipran
Levorphanol
Linezolid
Lisdexamfetamine
Lithium
Lofepramine
Lofexidine
Lomitapide
Lopinavir
Lorazepam
Lorcaserin
Lorlatinib
Loxapine
Lumacaftor
Magnesium Oxybate
Mavacamten
Meclizine
Melitracen
Melperone
Meperidine
Mephobarbital
Meprobamate
Meptazinol
Mesoridazine
Metaxalone
Methadone
Methamphetamine
Methdilazine
Methocarbamol
Methohexital
Methotrimeprazine
Methoxyflurane
Methylene Blue
Metoclopramide
Mibefradil
Midazolam
Mifepristone
Milnacipran
Mirtazapine
Mitapivat
Mitotane
Mobocertinib
Moclobemide
Modafinil
Molindone
Moricizine
Morphine
Morphine Sulfate Liposome
Nafcillin
Nalbuphine
Naratriptan
Nefazodone
Nelfinavir
Netupitant
Nevirapine
Nialamide
Nicomorphine
Nilotinib
Nitrazepam
Nitrous Oxide
Nortriptyline
Octreotide
Olanzapine
Olutasidenib
Omaveloxolone
Ondansetron
Opipramol
Opium
Opium Alkaloids
Orphenadrine
Oxazepam
Oxcarbazepine
Oxycodone
Oxymorphone
Ozanimod
Pacritinib
Palbociclib
Palonosetron
Papaveretum
Paregoric
Paroxetine
Pazopanib
Pentazocine
Pentobarbital
Perampanel
Perazine
Periciazine
Perphenazine
Phenelzine
Phenobarbital
Phenytoin
Pimozide
Piperacetazine
Pipotiazine
Piritramide
Pirtobrutinib
Posaconazole
Potassium Oxybate
Prazepam
Prednisone
Pregabalin
Primidone
Procarbazine
Prochlorperazine
Promazine
Promethazine
Protriptyline
Quazepam
Quetiapine
Ramelteon
Ranitidine
Ranolazine
Rasagiline
Remifentanil
Remimazolam
Remoxipride
Ribociclib
Rifabutin
Rifampin
Rifapentine
Ritlecitinib
Ritonavir
Rizatriptan
Ropeginterferon Alfa-2b-njft
Saquinavir
Scopolamine
Secobarbital
Selegiline
Selpercatinib
Sertindole
Sertraline
Sevoflurane
Sibutramine
Sodium Oxybate
Sotorasib
St John's Wort
Sufentanil
Sulpiride
Sumatriptan
Suvorexant
Tapentadol
Taurursodiol
Telaprevir
Telithromycin
Temazepam
Thiethylperazine
Thiopental
Thiopropazate
Thioridazine
Tianeptine
Tilidine
Tizanidine
Tocilizumab
Tolonium Chloride
Toloxatone
Topiramate
Tramadol
Tranylcypromine
Trazodone
Triazolam
Trifluoperazine
Trifluperidol
Triflupromazine
Trimeprazine
Trimipramine
Trofinetide
Tryptophan
Tucatinib
Venlafaxine
Verapamil
Vilazodone
Voriconazole
Vortioxetine
Voxelotor
Zaleplon
Ziprasidone
Zolmitriptan
Zolpidem
Zopiclone
Zotepine
Zuranolone

Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

Propofol

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.

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:

Alcohol abuse, or history of or
Brain tumor or
Breathing or lung problems (eg, apnea, COPD, cor pulmonale, respiratory depression, sleep apnea) or
Drug dependence, especially with narcotics, or history of or
Head injury, history of—May increase risk for more serious side effects.

Gallbladder problems or
Heart disease or
Hypotension (low blood pressure) or
Pancreatitis (inflammation of the pancreas) or
Seizures, history of or
Slow heartbeat—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 of This Medicine:

A nurse or other trained health professional will give you this medicine in a hospital. This medicine is given through a needle placed in one of your veins.

Precautions While Using This Medicine:

Your doctor will check your progress 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 allergic reactions, including anaphylaxis. Anaphylaxis can be life-threatening and requires 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.

Check with your doctor before using this medicine with alcohol or other medicines that affect the central nervous system (CNS). The use of alcohol or other medicines that affect the CNS with alfentanil may worsen the side effects of this medicine, such as dizziness, poor concentration, drowsiness, unusual dreams, and trouble with sleeping. Some examples of medicines that affect the CNS are antihistamines or medicine for allergies or colds, sedatives, tranquilizers, or sleeping medicines, medicine for depression, medicine for anxiety, prescription pain medicine or narcotics, medicine for attention deficit and hyperactivity disorder, medicine for seizures or barbiturates, muscle relaxants, or anesthetics, including some dental anesthetics.

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, or lightheaded. Do not drive or do anything else that could be dangerous until you know how this medicine affects you. Sit or lie down if you feel dizzy. Stand up carefully.

Tell your doctor if you or your child have stiffness in the muscles of your neck, chest, hands, or legs after receiving this medicine.

Check with your doctor right away if you or your child 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 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 narcotics 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.

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.

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 of This Medicine:

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: Blurred vision; chest pain or discomfort; confusion; difficult or troubled breathing; dizziness; dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position; fainting; fast, slow, pounding, or irregular heartbeat or pulse; headache; irregular, fast or slow, or shallow breathing; lightheadedness, dizziness, or fainting; nervousness; not breathing; pale or blue lips, fingernails, or skin; pounding in the ears; sweating; trouble breathing; unusual tiredness or weakness

Rare: Cough; noisy breathing; rigid muscles of the neck, arms, and legs; tightness in the chest

Incidence not known: Agitation; cough; darkening of the skin; diarrhea; difficulty with swallowing; fainting; fever; hives, itching, or skin rash; loss of appetite; nausea; overactive reflexes; poor coordination; puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue; restlessness; shivering; sweating; talking or acting with excitement you cannot control; trembling or shaking; twitching; vomiting

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:

More common: Drowsiness; sleepiness

Rare: False or unusual sense of well-being

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.

Last Updated: 11/16/2023

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