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Levo-Dromoran (Oral)

Generic name: levorphanol

Last updated December 25, 2025 0 views
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Uses for Levo-Dromoran

Levorphanol is used to relieve pain that is severe enough to need opioid treatment, especially when other pain medications have not worked well or cannot be tolerated. It is part of a group of medicines known as narcotic analgesics (pain medicines). It works on the central nervous system (CNS) to help relieve pain.

Using levorphanol for a long time may lead to habit-forming issues, causing mental or physical dependence. However, people with ongoing pain should not let the fear of dependence stop them from using narcotics to manage their pain. Mental dependence (addiction) is unlikely when narcotics are used for this reason. Physical dependence could result in withdrawal side effects if treatment is stopped suddenly. However, severe withdrawal side effects can typically be avoided by gradually lowering the dose over time before stopping treatment completely.

This medicine is available only through a restricted distribution program called the Opioid Analgesic REMS (Risk Evaluation and Mitigation Strategy) program.

This section was rewritten for readability and reviewed for meaning.

Precautions while using Levo-Dromoran

It is very important for your doctor to check your progress while you are using Levo-Dromoran (Oral), especially in the first 24 to 72 hours of treatment. This will help your doctor see if the medicine is working properly and decide if you should keep taking it. Blood and urine tests may be needed to check for unwanted effects.

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

Levo-Dromoran (Oral) will add to the effects of alcohol and other 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 medicines for allergies or colds, sedatives, tranquilizers, or sleeping medicine, other prescription pain medicine or narcotics, medicines for seizures or barbiturates, muscle relaxants, or anesthetics, including some dental anesthetics. Check with your doctor before taking any of these medicines while using Levo-Dromoran (Oral).

Levo-Dromoran (Oral) 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.

If you think you or someone else may have taken an overdose of Levo-Dromoran (Oral), get emergency help at once. Signs of an overdose include: dark urine, difficult or troubled breathing, irregular, fast or slow, or shallow breathing, nausea or vomiting, pain in the upper stomach, pale or blue lips, fingernails, or skin, pinpoint pupils of the eyes, or yellow eyes or skin.

Dizziness, lightheadedness, or fainting may occur 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 dizziness or lightheadedness.

Levo-Dromoran (Oral) 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.

Do not change your dose or suddenly stop using Levo-Dromoran (Oral) without first 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 with sleeping.

Using Levo-Dromoran (Oral) while you are pregnant may cause neonatal withdrawal syndrome in your newborn baby. Tell your doctor right away if your child has the following symptoms: abnormal sleep pattern, diarrhea, high-pitched cry, irritability, shakiness or tremor, weight loss, vomiting, or failure to gain weight.

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

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.

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.

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.

This section was rewritten for readability and reviewed for meaning.

Before using Levo-Dromoran

In deciding to use a drug, the risks of using the drug must be weighed against the good it will do. This is a decision you and your physician 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. Additionally inform 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 levorphanol in the pediatric population. 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 levorphanol in the elderly. Nevertheless, elderly patients are more likely to have age-related liver, kidney, heart, or lung issues, which may require caution and an adjustment in the dose for patients receiving levorphanol.

Breast Feeding

There are no adequate studies in women for determining infant chance when using this drug during breastfeeding. Weigh the potential benefits against the potential risks prior to using this drug while breastfeeding.

Interactions with Medications

Although certain medicines should not be used together at all, in other cases two different medications 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 taking this medication, it is especially important that your healthcare professional know if you are using 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 medication with any of the following medications is not recommended. Your physician may decide not to treat you with this drug or change some of the other medicines you take.

  • Nalmefene
  • Naltrexone
  • Safinamide
  • Samidorphan

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

  • Acepromazine
  • Alfentanil
  • Almotriptan
  • Alprazolam
  • Amifampridine
  • Amineptine
  • Amitriptyline
  • Amitriptylinoxide
  • Amobarbital
  • Amoxapine
  • Amphetamine
  • Anileridine
  • Aripiprazole
  • Asenapine
  • Baclofen
  • Benperidol
  • Benzhydrocodone
  • Benzphetamine
  • Bromazepam
  • Bromopride
  • Brompheniramine
  • Buprenorphine
  • Bupropion
  • Buspirone
  • Butabarbital
  • Butorphanol
  • Calcium Oxybate
  • Cannabidiol
  • Cannabis
  • Carbamazepine
  • Carbinoxamine
  • Carisoprodol
  • Carphenazine
  • Cetirizine
  • Chloral Hydrate
  • Chlordiazepoxide
  • Chlorpheniramine
  • Chlorpromazine
  • Chlorzoxazone
  • Citalopram
  • Clobazam
  • Clomipramine
  • Clonazepam
  • Clopidogrel
  • Clorazepate
  • Clozapine
  • Cocaine
  • Codeine
  • Cyclobenzaprine
  • Daridorexant
  • Desipramine
  • Desmopressin
  • Desvenlafaxine
  • Dexmedetomidine
  • Dextroamphetamine
  • Dextromethorphan
  • Dezocine
  • Diazepam
  • Dibenzepin
  • Dichloralphenazone
  • Difenoxin
  • Dihydrocodeine
  • Diphenhydramine
  • Diphenoxylate
  • Dolasetron
  • Donepezil
  • Doxepin
  • Doxylamine
  • Droperidol
  • Duloxetine
  • Eletriptan
  • Enflurane
  • Escitalopram
  • Esketamine
  • Estazolam
  • Eszopiclone
  • Ethchlorvynol
  • Ethopropazine
  • Ethylmorphine
  • Fenfluramine
  • Fentanyl
  • Flibanserin
  • Fluoxetine
  • Fluphenazine
  • Flurazepam
  • Fluspirilene
  • Fluvoxamine
  • Fospropofol
  • Frovatriptan
  • Furazolidone
  • Gabapentin
  • Gabapentin Enacarbil
  • Gepirone
  • Granisetron
  • Halazepam
  • Haloperidol
  • Halothane
  • Hexobarbital
  • Hydrocodone
  • Hydromorphone
  • Hydroxytryptophan
  • Hydroxyzine
  • Imipramine
  • Iproniazid
  • Isocarboxazid
  • Isoflurane
  • Ketamine
  • Ketazolam
  • Ketobemidone
  • Lacosamide
  • Lasmiditan
  • Lemborexant
  • Levocetirizine
  • Levomilnacipran
  • Linezolid
  • Lisdexamfetamine
  • Lithium
  • Lofepramine
  • Lofexidine
  • Lorazepam
  • Lorcaserin
  • Loxapine
  • Magnesium Oxybate
  • Meclizine
  • Melitracen
  • Melperone
  • Meperidine
  • Mephobarbital
  • Meprobamate
  • Meptazinol
  • Mesoridazine
  • Metaxalone
  • Methadone
  • Methamphetamine
  • Methdilazine
  • Methocarbamol
  • Methohexital
  • Methotrimeprazine
  • Methylene Blue
  • Metoclopramide
  • Midazolam
  • Milnacipran
  • Mirtazapine
  • Moclobemide
  • Molindone
  • Moricizine
  • Morphine
  • Morphine Sulfate Liposome
  • Nalbuphine
  • Naratriptan
  • Nefazodone
  • Nialamide
  • Nicomorphine
  • Nitrazepam
  • Nitrous Oxide
  • Nortriptyline
  • Olanzapine
  • Ondansetron
  • Opipramol
  • Opium
  • Opium Alkaloids
  • Orphenadrine
  • Oxazepam
  • Oxycodone
  • Oxymorphone
  • Ozanimod
  • Palonosetron
  • Papaveretum
  • Paregoric
  • Paroxetine
  • Pentazocine
  • Pentobarbital
  • Perampanel
  • Perazine
  • Periciazine
  • Perphenazine
  • Phenelzine
  • Phenobarbital
  • Pimozide
  • Piperacetazine
  • Pipotiazine
  • Piritramide
  • Potassium Oxybate
  • Prazepam
  • Pregabalin
  • Primidone
  • Procarbazine
  • Prochlorperazine
  • Promazine
  • Promethazine
  • Propofol
  • Protriptyline
  • Quazepam
  • Quetiapine
  • Ramelteon
  • Rasagiline
  • Remifentanil
  • Remimazolam
  • Rizatriptan
  • Ropeginterferon Alfa-2b-njft
  • Scopolamine
  • Secobarbital
  • Selegiline
  • Sertindole
  • Sertraline
  • Sibutramine
  • Sodium Oxybate
  • St John's Wort
  • Sufentanil
  • Sulpiride
  • Sumatriptan
  • Suvorexant
  • Tapentadol
  • Temazepam
  • Thiethylperazine
  • Thiopental
  • Thiopropazate
  • Thioridazine
  • Tianeptine
  • Tilidine
  • Tizanidine
  • Tolonium Chloride
  • Topiramate
  • Tramadol
  • Tranylcypromine
  • Trazodone
  • Triazolam
  • Trifluoperazine
  • Trifluperidol
  • Triflupromazine
  • Trimeprazine
  • Trimipramine
  • Tryptophan
  • Venlafaxine
  • Vilazodone
  • Vortioxetine
  • Zaleplon
  • Ziprasidone
  • Zolmitriptan
  • Zolpidem
  • Zopiclone
  • Zotepine
  • Zuranolone

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

  • Risperidone

Interactions with Food/Tobacco/Alcohol

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 advised, 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

Other Medical Issues

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

  • Addison's disease (adrenal gland issue) or
  • Alcohol abuse, history of or
  • Brain tumor or
  • Breathing or lung problems (eg, chronic obstructive pulmonary disease [COPD], hypoxia) or
  • Congestive heart failure or
  • Cor pulmonale (severe heart condition) or
  • Drug dependence, especially narcotic abuse or dependence, or history of or
  • Enlarged prostate (BPH, prostatic hypertrophy) or
  • Gallbladder problems or
  • Head injuries or
  • Hypothyroidism (an underactive thyroid) or
  • Increased pressure in your head or
  • Infection, serious or
  • Mental illness, history of or
  • Issues with passing urine or
  • Stomach or bowel problems—Use with caution. May increase risk for more serious adverse effects.
  • Gallbladder surgery or
  • Lung or breathing issues (eg, asthma, respiratory depression), serious or
  • Stomach or bowel blockage (eg, paralytic ileus), known or suspected—Should not be used in patients with these conditions.
  • Heart disease or
  • Hypotension (low blood pressure) or
  • Myocardial infarction (heart attack) or
  • Pancreatitis (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 medication from the body.

This section was rewritten for readability and reviewed for meaning.

Side Effects of Levo-Dromoran

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

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

Incidence not known

  • Agitation
  • attempts at killing oneself
  • bluish lips or skin
  • blurred vision
  • change in consciousness
  • cold, clammy skin
  • confusion
  • darkening of the skin
  • decrease in the frequency of urination
  • decreased awareness or responsiveness
  • decreased urine output
  • depression
  • diarrhea
  • difficulty in passing urine (dribbling)
  • difficulty swallowing
  • dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
  • extra heartbeat
  • extremely shallow or slow breathing
  • fast, slow, irregular, pounding, or racing heartbeat or pulse
  • fast, weak pulse
  • fever
  • hostility
  • hives or welts, itching, skin rash
  • lightheadedness
  • loss of appetite
  • loss of consciousness
  • muscle twitching
  • nausea
  • no blood pressure or pulse
  • not breathing
  • overactive reflexes
  • painful urination
  • poor coordination
  • puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  • rapid weight gain
  • restlessness
  • seizures
  • severe sleepiness
  • shivering
  • stopping of the heart
  • sweating
  • swelling of the face, ankles, or hands
  • talking or acting with excitement you cannot control
  • tightness in the chest
  • trembling or shaking
  • twitching
  • unusual drowsiness, dullness, tiredness, weakness, or feeling of sluggishness
  • vomiting

Get emergency help immediately if any of the following symptoms of overdose occur:

Symptoms of overdose

  • Chest pain or discomfort
  • constricted, pinpoint, or small pupils (black part of the eye)
  • decreased awareness or responsiveness
  • difficult or troubled breathing
  • difficulty with sleeping
  • dilated neck veins
  • disorientation
  • drowsiness to profound loss of consciousness
  • extreme tiredness or weakness
  • headache
  • irregular, fast or slow, or shallow breathing
  • no muscle tone or movement
  • not breathing
  • pale or blue lips, fingernails, or skin
  • seeing, hearing, or feeling things that are not there
  • sleepiness or unusual drowsiness
  • swelling of the face, fingers, feet, or lower legs
  • weight gain

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, are bothersome, or if you have any questions about them:

Incidence not known

  • Abnormal dreams
  • absence of or decrease in body movement
  • belching
  • change in personality
  • changes in vision
  • discouragement
  • double vision
  • dry mouth
  • false beliefs that cannot be changed by facts
  • feeling sad or empty
  • heartburn
  • increase in body movements
  • indigestion
  • irritability
  • loss of interest or pleasure
  • loss of memory
  • nervousness
  • poor insight and judgment
  • problems with memory or speech
  • redness of the skin
  • seeing double
  • stomach discomfort, upset, or pain
  • sweating
  • trouble concentrating
  • trouble recognizing objects
  • trouble sleeping
  • trouble thinking and planning
  • trouble walking
  • twitching, twisting, uncontrolled repetitive movements of the tongue, lips, face, arms, or legs
  • upper abdominal or stomach pain

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.

In the U.S.

  • Levo-Dromoran

Available Dosage Forms:

  • Tablet

Therapeutic Class: Analgesic

Chemical Class: Opioid

This section was rewritten for readability and reviewed for meaning.

Proper use of Levo-Dromoran

Take this medicine only as directed by your doctor. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered. This is especially important for elderly patients, who may be more sensitive to the effects of pain medicines. If too much of this medicine is taken for a long time, it may become habit-forming (causing mental or physical dependence) or cause an overdose.

It is very important that you understand the rules of the Opioid Analgesic REMS program to prevent addiction, abuse, and misuse of levorphanol. This medicine should also come with a Medication Guide. Read and follow these instructions carefully. Read it again each time you refill your prescription in case there is new information. Ask your doctor if you have any questions.

Dosing

The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

  • For oral dosage form (tablets):For moderate to severe pain: Adults—At first, 1 to 2 milligrams (mg) every 6 to 8 hours as needed. Your doctor may increase your dose as needed. However, the dose is usually not more than 6 to 12 mg per day. Children—Use and dose must be determined by your doctor.

Missed Dose

If you miss a dose of this medicine, skip the missed dose and go back to your regular dosing schedule. Do not double doses.

Storage

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.

Keep out of the reach of children.

Do not keep outdated medicine or medicine no longer needed.

Ask your healthcare professional how you should dispose of any medicine you do not use.

Levorphanol can cause serious unwanted effects or fatal overdose if taken by children, pets, or adults who are not used to strong narcotic pain medicines. Make sure you store the medicine in a safe and secure place to prevent others from getting it.

Do not throw unused medicine in the trash. Flush unused tablets down the toilet.

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Before you take this medicine: the information on this page is general and may not cover your personal circumstances. Read the label supplied with your medicine and ask a pharmacist or doctor if you are unsure, especially if you are pregnant, breastfeeding, taking other medicines or managing a long-term condition.
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