The reference site for Fenoterol

Fenoterol is a β2 adrenoreceptor agonist designed to open up the airways to the lungs. It is classed as sympathomimetic β2 agonist and asthma medication.

WHAT IS Fenoterol?

Fenoterol is a bronchodilator. It works by relaxing muscles in the airways to improve breathing.

This medication is used to treat acute asthma and other lung problems such as chronic bronchitis, in which the air passages can become narrowed.


Brand Name(s): Alupent; Bricanyl Turbuhaler; Isuprel; Maxair; Serevent; Ventolin
CAS nº: 1944-12-3


Product Info

The sections below will provide you with more specific information and guidelines related to fenoterol and its correct use. Please read them carefully.

FDA Information

Fenoterol has been approved by the US Food and Drug Administration. A prescription is required for this medicine.

Please visit the official site of the FDA for further information.

Why is this medication prescribed?

Fenoterol is a bronchodilator. It works by relaxing muscles in the airways to improve breathing.

This medication is used to treat acute asthma and other lung problems such as chronic bronchitis, in which the air passages can become narrowed.

Other uses for this medicine

This medication has not been approved for any alternative uses other than those mentioned in the product information section.

Dosage and using this medicine


This medicine comes with patient directions. Read them carefully before using the medicine. If you do not understand the directions or if you are not sure how to use the medicine, ask your health care professional to show you what to do. Also, ask your health care professional to check regularly how you use the medicine to make sure you are using it properly.

Use this medicine only as directed. Do not use more of it and do not use it more often than recommended on the label, unless otherwise directed by your doctor. Using the medicine more often may increase the chance of serious unwanted effects. Deaths have occurred when too much inhalation bronchodilator medicine was used.

To use most inhalers:

– Using your thumb and one or two fingers, hold the inhaler upright, with the mouthpiece end down and pointing toward you.

– Take the cap off the mouthpiece. Check the mouthpiece to make sure it is clear. Then, gently shake the inhaler three or four times.

– Breathe out slowly to the end of a normal breath.

– Use the inhalation method recommended by your doctor:
Open-mouth method
 – Place the mouthpiece about 1 to 2 inches (2 finger widths) in front of your widely opened mouth. Make sure the inhaler is aimed into your mouth so the spray does not hit the roof of your mouth or your tongue.
Closed-mouth method – Place the mouthpiece in your mouth between your teeth and over your tongue with your lips closed tightly around it. Make sure your tongue or teeth are not blocking the opening.

– Start to breathe in slowly through your mouth. At the same time, press the top of the canister one time to get 1 puff of medicine. Continue to breathe in slowly for 3 to 5 seconds. Count the seconds while breathing in. It is important to press the canister and breathe in slowly at the same time so the medicine gets into your lungs. This step may be difficult at first. If you are using the closed-mouth method and you see a fine mist coming from your mouth or nose, the inhaler is not being used correctly.

– Hold your breath as long as you can up to 10 seconds. This gives the medicine time to settle into your airways and lungs.

– Take the mouthpiece away from your mouth and breathe out slowly.

– If your doctor has told you to inhale more than 1 puff of medicine at each dose, gently shake the inhaler again and take the next puff following exactly the same steps you used for the first puff. Press the canister one time for each puff of medicine.

– When you are done, wipe off the mouthpiece and replace the cap.

Your doctor, nurse, or pharmacist may want you to use a spacer or holding chamber with the inhaler. A spacer helps get the medicine into the lungs and reduces the amount of medicine that stays in your mouth and throat.


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

For fenoterol inhalation aerosol dosage form:

For preventing or treating bronchospasm:

Adults and children 12 years of age and older – 100 or 200 micrograms (mcg) , repeated three or four times a day if needed. This medicine should not be taken more often than every four hours. The total dose should not be more than 8 puffs a day of the 100 mcg per spray product or 6 puffs of the 200 mcg per spray product .
Children up to 12 years of age – Dose must be determined by your doctor.

For inhalation solution dosage form:

For preventing or treating bronchospasm:

Adults and children 12 years of age and older – This medicine is used in a nebulizer and is taken by inhalation over ten to fifteen minutes. The usual dose is 0.5 to 1 milligram (mg) of fenoterol taken every six hours if needed.
Children up to 12 years of age – Dose must be determined by your doctor.

What special precautions should I follow?


Inform your doctor about your complete medical history, including: any allergies, heart diseases, blood vessel disorders, high blood pressure, thyroid problems (hyperthyroid), glaucoma, or diabetes.

Tell your doctor of all non-prescription and prescription medication you may use, especially: other adrenaline-like drugs (e.g., pseudoephedrine), anticholinergics (e.g. benztropine), xanthine products (e.g. theophylline, caffeine), corticosteroids (e.g. prednisone), “water pills” (diuretics e.g. furosemide), beta-blockers (e.g. propranolol), MAO inhibitors (e.g. furazolidone, selegiline, phenelzine, moclobemide, linezolid, procarbazine), or certain antidepressants (e.g. amitriptyline). Do not start or stop any medicine without doctor or pharmacist approval.

Limit alcohol intake as it may aggravate drug side effects.

This medication should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor. Moreover, it is not known whether this drug is excreted into breast milk. Consult your doctor before breast-feeding.

Caution is advised when this drug is used in the elderly as this group may be more sensitive to drug side effects.

What should I do if I forget a dose?

If you are using fenoterol regularly and you miss a dose, use it as soon as possible. Then use any remaining doses for that day at regularly spaced intervals.

Do not double dose.

What side effects can this medication cause?

Tell your doctor if any of these symptoms are severe or do not go away:


If you experience any of the following symptoms, call your doctor immediately:

chest pain
fast or slow pulse
muscle cramping
unusual weakness
an allergic reaction (rash, itching, swelling, severe dizziness, trouble breathing)

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

What storage conditions are needed for this medicine?

Always keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom).

Please remember to throw away any medication that is outdated or no longer needed. Talk to your pharmacist about the proper disposal of your medication.

In case of an emergency/overdose

In the case of an overdose, call your local poison control center on 1-800-222-1222. If the victim has collapsed or is not breathing, then please call the local emergency services on 911.

Symptoms of an overdose may include fast or irregular heartbeat.

Product Images


Below you will find images and specific information on the principal types of fenoterol that exist, including their respective brand name(s), strength, inscription codes, manufacturers and/or distributors.

The information below includes general information and guidelines for patients taking this medication and should never be used to substitute professional medical advice that can be provided by a qualified physician or family doctor.

Strength(s): 21 MCG

Strength(s): 90 MCG
Manufacturer: ALLEN & HANBURY

Strength(s): 90 MCG

Strength(s): 0.65 mg/inh 14g

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