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Generic Name: racepinephrine (RAYSE ep i NEF rin)
Brand Name:Asthmanefrin, S2 Inhalant
Medically reviewed by Holevn.org on Dec 2, 2019 – Written by Cerner Multum
What is S2 Inhalant?
S2 Inhalant is a bronchodilator. It works by relaxing muscles in the airways to improve breathing.
S2 Inhalant is used to relieve occasional symptoms of asthma, such as wheezing, chest tightness, and feeling short of breath.
S2 Inhalant may also be used for purposes not listed in this medication guide.
Do not use S2 Inhalant if you have used an MAO inhibitor in the past 14 days, such as isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, or tranylcypromine.
Before taking this medicine
Do not use S2 Inhalant unless you have asthma that has been confirmed by a doctor.
You should not use S2 Inhalant if you are allergic to it.
Do not use S2 Inhalant if you have used an MAO inhibitor in the past 14 days. A dangerous drug interaction could occur. MAO inhibitors include isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, tranylcypromine, and others.
Ask a doctor or pharmacist if it is safe for you to use this medicine if you have other medical conditions, especially:
high blood pressure;
a thyroid disorder;
mental illness or an emotional disorder;
seizures or epilepsy;
narrow-angle glaucoma; or
an enlarged prostate and urination problems.
It is not known whether S2 Inhalant will harm an unborn baby. Do not use this medicine without a doctor’s advice if you are pregnant.
It is not known whether racepinephrine passes into breast milk or if it could harm a nursing baby. Do not use this medicine without a doctor’s advice if you are breast-feeding a baby.
Do not give this medicine to a child younger than 4 years old without medical advice.
How should I use S2 Inhalant?
Use exactly as directed on the label, or as prescribed by your doctor. Do not take more than the recommended dose. Using too much S2 Inhalant or using it too often can increase your risk of heart attack or stroke, which can cause death.
S2 Inhalant is a liquid solution that must be placed into a hand-held bulb nebulizer. You will inhale the medicine from the nebulizer.
Any child using S2 Inhalant should be supervised by an adult while using this medicine.
After using S2 Inhalant, your symptoms should improve within 20 minutes.
Call your doctor right away if your symptoms do not improve within 20 minutes, or if they get worse after using S2 Inhalant.
Asthma is usually treated with a combination of drugs. Use all medications as directed by your doctor. Read the medication guide or patient instructions provided with each medication. Do not change your doses or medication schedule without your doctor’s advice.
Seek medical attention if you think your medications are not working as well.
Signs that your asthma symptoms may be getting worse include:
having to use more than 12 inhalations of S2 Inhalant in a 24-hour period;
having to use more than 9 inhalations in 24 hours for 3 or more days in 1 week; or
having more than 2 asthma attacks in 1 week.
Store at room temperature away from moisture, heat, and light. Do not freeze.
Do not use S2 Inhalant if it looks brown or cloudy. Throw it out and get a new supply of racepinephrine.
What happens if I miss a dose?
Since S2 Inhalant is used when needed, you may not be on a dosing schedule. If you are on a schedule, use the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not use extra medicine to make up the missed dose.
Do not use more than 12 inhalations of racepinephrine in a 24-hour period.
What happens if I overdose?
Seek emergency medical attention or call 115.
What should I avoid while using S2 Inhalant?
Avoid getting S2 Inhalant in your eyes.
Avoid eating or drinking products that contain caffeine, such as coffee, tea, soft drinks, or energy drinks. Taking caffeine while you are using S2 Inhalant can increase your blood pressure.
S2 Inhalant side effects
Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have:
new or worsening asthma symptoms;
fast heart rate, tremors or a nervous feeling;
sleep problems (insomnia);
a seizure (convulsions); or
dangerously high blood pressure–severe headache, blurred vision, pounding in your neck or ears, nosebleed, anxiety, confusion, severe chest pain, shortness of breath, irregular heartbeats.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What other drugs will affect S2 Inhalant?
Tell your doctor about all your current medicines and any you start or stop using, especially:
other asthma medications;
diet pills, an appetite suppressant, or stimulant medicine;
cold or allergy medicine that contains a decongestant; or
an antidepressant or medicine to treat mental illness.
This list is not complete. Other drugs may interact with racepinephrine, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed in this medication guide.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
Copyright 1996-2018 Cerner Multum, Inc. Version: 1.01.
The content of Holevn is solely for the purpose of providing information about Thuốc S2 Inhalant and is not intended to be a substitute for professional medical advice, diagnosis or treatment. Please contact your nearest doctor or clinic, hospital for advice. We do not accept liability if the patient arbitrarily uses the drug without following a doctor’s prescription.
Reference from: https://www.drugs.com/mtm/s2-inhalant.html