Asthnefrin (Racepinephrine) Inhalation: Uses, Side Effects, Dosage (2023)

What is nephrine for asthma?

asmafrina(Racepinefrina) is an inhalationbronchodilator(a type of medicine used to make breathing easier) to relieve the symptoms ofintermittent asthmain adults and children over 4 years of age.

Asmaphrine is classified as a non-selective beta-agonist (a group of drugs that lower blood and venous pressure) and also as a short-acting bronchodilator that can temporarily relieve the mild symptoms of intermittent asthma.

Asthmanefrin works by stimulating the beta-receptors in the smooth muscles of the airways, leading to the opening of the airways, which can subsequently reduce wheezing, shortness of breath, and shortness of breath.Angina(chest tightness) after an asthma diagnosis.

Asthmanefrin, a brand-name drug, contains the active ingredient racepinephrine. However, racepinephrine is not available as a generic drug.

Instead, asmanephrine is available without a prescription as an over-the-counter (OTC) inhalation solution.

This medication requires the use of the short-acting inhaled bronchodilator racepinephrine, which is classified as portableVernebler. For context, the nebulizer turns liquid medication into a fine mist that you breathe into your lungs.

drug facts

generic name: Racepinefrina

brand names): Asmafrina

drug availability: OTC

Therapeutic Classification: bronchodilator

generic available: Not

controlled substance: N / D

administrative route: Inspire

active ingredient: Racepinefrina

dosage forms): solution for inhalation

What is asmanephrine used for?

The Food and Drug Administration (FDA) has approved asmanephrine for the treatment of symptoms associated with intermittent asthma in adults and children aged 4 years and older. Mild symptoms of intermittent asthma include wheezing, angina and shortness of breath.

Asthmanefrin is not the same asshort-acting beta agonists(and SEVEN),such assalbutamol, an oral medication that provides quick reliefasthma cases.

For context, intermittent asthma is the occurrence of asthma symptoms that occur no more than two days a week, along with nighttime symptoms that occur no more than twice a month.

However, it should be noted that the FDA does not approve this drug to treat asthma.

(Video) Athsma Treatment:2013 Athsma asthmanefrin Vs.Primatene Vs.The Prescription Inhaler

How to take nephrin for asthma

Inhale asmanephrine using a nebulizer. Do not use more than 12 puffs in 24 hours. Do not use more asmanephrine than recommended.

An adult must supervise the use of this product by children.

If using the portable rubber ball nebulizer, infuse 0.5 milliliters (contents of one vial) of the solution into the nebulizer.

How to use the manual nebulizer:

  1. wash the hands
  2. Remove the plastic vial from its foil pouch.
  3. Open the bottle and pour the medicine into the medicine cup.
  4. Place mouthpiece in mouth and hold lips firmly to create a seal.
  5. Turn on the nebulizer (if using a balloon nebulizer, squeeze the rubber bulb to pump the nebulized medication into your lungs).
  6. Inhale only through the mouth.
  7. Inhale until all the medicine has been released.
  8. Turn off the machine.
  9. Rinse the medicine cup and mouthpiece with water and allow them to air dry.


Store asmanephrine vials in their protective pouches in the refrigerator or at room temperature (36 F to 77 F).

Also, keep it away from excessive heat, direct light or freezing temperatures and, if necessary, keep it out of the reach of children and pets.

How long does it take for asmanephrine to work?

Asthmanefrin should start relieving your asthma symptoms within minutes. If there is no relief within 20 minutes, contact a doctor.

What are the side effects of Asthmanefrin?

This is not a complete list of side effects and others may occur. A doctor can advise you about side effects. If you notice other effects, contact your doctor. You can report side effects to the FDA 1-800-FDA-1088.

frequent side effects

The most common side effects of taking asmanephrine include:

  • Highblood pressure
  • Increased heart rate
  • Anguish
  • Agitation
  • Shake
  • insomnia(inability to fall asleep)
  • nausea

serious side effects

Contact your doctor immediately if you experience any serious side effects. Call 911 if your symptoms seem life-threatening or if you think you have a medical emergency.

Serious side effects and their symptoms associated with the use of asmanephrine can include:

  • Angina
  • High blood pressure orTachycardia(fast heartbeat), side effects that may increase your riskHerzattackeorleakand possibly death.
  • Numbness or weakness in the arm or leg or on one side of the body
  • Allergic reactions such as rash, fever, flushing or rapid heartbeat

As asthma can be fatal, see a doctor if you:

  • Not better in 20 minutes
  • get worse or need more than 12 puffs in 24 hours
  • Use more than nine puffs in 24 hours, three or more days a week
  • having more than two asthma attacks in a week

report side effects

Asthmanefrin can cause other side effects. Call your doctor if you have any unusual problems while taking this medication.

If you have a serious side effect, you or your doctor can send a report toThe FDA's MedWatch adverse event reporting programor by phone (800-332-1088).

(800) 332-1088

Dosage: How much asmanephrine should I take?

Drug content Provided and reviewed byIBM Micromedex®

(Video) Croup There It Is

The dose of this medicine is different for different patients. Follow your doctor's or label instructions. The information below only includes the average doses of this medication. If your dose is different, do not change it unless your doctor tells you to.

The amount of medicine you take depends on the strength of the medicine. Also, the number of doses you take each day, the time interval between doses, and how long you take the medicine will depend on the medical condition you are using the medicine for.

  • For the inhalation dosage form:
    • To relieve asthma symptoms:
      • Adults and children over 4 years of age - 1 to 3 inhalations for each dose. Wait at least 3 hours between doses. Do not use more than 12 puffs in 24 hours.
      • Children under 4 years - the use and dose must be determined by your doctor.


The following factors can affect whether you take asmanephrine or how you take it:

pregnancy: The safe use of asmanephrine in pregnancy has not been established; Therefore, the decision to use it during pregnancy must consider the potential benefits and risks for the mother and fetus. Consult a doctor before using this medication during pregnancy.

breast-feeding: It is not known whether asmanephrine is present in human milk. However, most experts agree that inhaled bronchodilators, including epinephrine, are compatible with breastfeeding because they are poorly absorbed by ingestion and have low maternal serum levels after use.

Kinder: The safety and efficacy of asmanephrine in children less than 4 years of age have not been established.

missed dose

If you forget to take a dose of asmanephrine, take it as soon as you remember. If it is almost time for the next dose, skip the missed dose and take the next dose at the usual time.

Do not take an extra dose to make up for a missed dose.

Because this medication should only be used when needed in response to asthma symptoms, missed doses are usually not a problem.

Overdose: what happens if I take too much asmanephrine?

Symptoms associated with asmanephrine overdose may include tachycardia, hypercardia, or tachycardialow blood pressure, nervousness, tremors, heartpalpitations(abnormal heart rhythm),hyperglycemia(high blood sugar), feeling or being sick.

Also, injecting this medication intravenously (into a vein) can cause serious heart problems, including heart attack and death.

Treatment of overdose should be symptomatic and supportive. Cardiac monitoring is recommended in patients with cardiac symptoms. Medications may be needed to treat severe high blood pressure.

What happens if I take an overdose of asmanephrine?

If you think you or someone else has overdosed on nephrin for asthma, call a doctor or the Center for Poison Control (800-222-1222).

If someone passes out or is not breathing after taking asmanefrin, call 911 immediately.


Drug content Provided and reviewed byIBM Micromedex®

It is very important that your doctor check your or your child's progress at regular make sure this medicine is working properly and to check for any unwanted effects.

Contact your doctor if your symptoms do not improve or get worse. Your asthma may get worse if:

  • You won't feel better in 20 minutes.
  • You need more than 12 puffs in 24 hours.
  • You use more than 9 puffs in 24 hours, 3 or more days a week.
  • You have more than 2 asthma attacks in a week.

Contact your doctor immediately if you have trouble sleeping, rapid heartbeat, tremors, nervousness or seizures.

Do not use this medication if you are using or have taken an MAOI (MAOI) such as isocarboxazid [Marplan®], linezolid [Zyvox®], phenelzine [Nardil®], selegiline [Eldepryl®], tranylcypromine [Parnate®]. have. in the last 14 days.

This medication can cause high blood pressure, which can increase your risk of heart attack or stroke. Contact your doctor immediately if you experience chest pain or discomfort, nausea or vomiting, pain or discomfort in your arms, jaw, back or neck, slurred speech or weakness.

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

(Video) How to treat a Rat with respiratory infection - Baytril + Racepinephrine nebulizer

What are the reasons why I should not use asmanephrine?

You should not take this medication if the following apply:

  • You have not been diagnosed with asthma by a healthcare professional
  • are taking or have recently taken within the last two weeks a prescribed monoamine oxidase inhibitor (MAOI) (medicines usedtreat depression, psychiatric disorders orParkinson disease)
  • If the product is brown or cloudy

Also, before starting treatment with asmanephrine, you should consult a doctor if:

  • They were hospitalized for asthma
  • You have a history of heart disease
  • you have a history of high blood pressure
  • you use aDiabetesTo diagnose
  • you use athyroid diseaseTo diagnose
  • You have or have had seizures
  • you use aEngwinkelglaukomTo diagnose
  • Do you have difficulty urinating because of aprostate enlargement

What other drugs interact with asmanephrine?

Some medications should not be taken with asmanephrine. Make sure your doctor has an up-to-date list of all the medications you take, including prescription and over-the-counter (OTC) medications, vitamins, and herbal supplements.

Medications that may interact with asmanephrine include:

  • anticonvulsants, asNeurontin (Gabapentina)
  • antihistamines, such as Allegra-D 12 hours (Fexofenadina) or cerviate (cetirizine)
  • beta blockers, asTenormina (Atenolol)
  • heartburn medications, asPrilosec (Omeprazol)
  • Tetracycline-AntibioticsCourtsVibramycin (Doxycycline)

Diet pills, stimulants (eg.Caffeine), edecongestants, such as Sudafed 12 Hour (pseudoephedrine), may increase the risk of side effects when used with asmanephrine.

What drugs are similar?

Asthmanefrin belongs to a family of inhaled medications known as short-acting bronchodilators, commonly used to treat asthma.

Other drugs in this family include:

  • Primatennebel (Adrenaline)
  • Proair HFA (Albuterol)
  • Xopenex (Levalbuterol)

People with asthma should only use one short-acting bronchodilator at a time.

The prescription bronchodilator albuterol is available as a multidose inhaler and as a nebulizer solution.

common questions

  • What side effects can I expect when using Asthmanefrin?

    The most common side effects associated with the use of asmanephrine are palpitations, anxiety, tremors, restlessness, nausea and vomiting.

    (Video) How to load a nebulizer with Baytril + Racepinephrine for treating respiratory infection
  • How is racepinephrine different from epinephrine?

    Racepinephrine is a blend that contains Dextro-Epinephrine and Levo-Epinephrine, while Epinephrine is made up of Levo-Epinephrine, the stronger form.

  • How do OTC inhalers like asmanephrine compare to prescription inhalers like albuterol?

    There are limited data comparing racepinephrine to albuterol, but one small study showed that albuterol was more effective in protecting against bronchospasm.

    Some people believe that having some asthma medications available over the counter is convenient for people without regular access to health care or insurance. However, there are safety concerns with self-diagnosis and self-treatment of breathing problems.

    It may seem more expensive to see a healthcare professional who will prescribe asthma medications than to buy over-the-counter medications.

    However, many programs offerfree or discounted asthma medicationfor people who qualify based on their finances.

How can I stay healthy while taking Asthmanefrin?

Do not exceed the recommended dose of asmanephrine. Excessive use of asmanephrine does not result in increased therapeutic effect and can lead to serious side effects, including cardiac arrest and possible death.

Do not use caffeine or other stimulants as they can increase the likelihood of side effects.

If your asmanephrine treatment wears off or requires more frequent use, i.e. H. more than nine puffs a day, three days a week, talk to your doctor right away.

These signs may indicate thatYour asthma is not well controlled, and you may need other medications to improve your lung function.

Medical liability waiver

Verywell Health drug information is for educational purposes only and is not a substitute for medical advice, diagnosis or treatment from a healthcare professional. Consult your doctor before taking any new medication.IBM Watson Micromedexcontains part of the drug content as indicated on the website.


Top Articles
Latest Posts
Article information

Author: Merrill Bechtelar CPA

Last Updated: 01/10/2023

Views: 6156

Rating: 5 / 5 (70 voted)

Reviews: 85% of readers found this page helpful

Author information

Name: Merrill Bechtelar CPA

Birthday: 1996-05-19

Address: Apt. 114 873 White Lodge, Libbyfurt, CA 93006

Phone: +5983010455207

Job: Legacy Representative

Hobby: Blacksmithing, Urban exploration, Sudoku, Slacklining, Creative writing, Community, Letterboxing

Introduction: My name is Merrill Bechtelar CPA, I am a clean, agreeable, glorious, magnificent, witty, enchanting, comfortable person who loves writing and wants to share my knowledge and understanding with you.