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Doctor insights on: What Is The Mechanism Involved In Pressurised Metered Dose Inhaler

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How do I use a metered-dose inhaler?

Inhaler: I would recommend to go to the manufacture's website and get a handout or watch a video if they have one to learn how to use the device. Sometimes devices have different ways of using them. Alternatively go to your pharmacist and they can go over how to use the device. ...Read more

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Dr. Shah Chowdhury
630 doctors shared insights

Inhaler (Definition)

It is a type of medication delivery system used to inhale aerosolized medications. The most well know of this is ...Read more


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Can I use one metered dose inhaler to administer fluticasone and albuterol, one at a time? Or should I get separate inhalers?

Can I use one metered dose inhaler to administer fluticasone and albuterol, one at a time? Or should I get separate inhalers?

Separate: Since each MDI device is customized to the unique product, I don't know any study showing that they can be interchanged. If you have lost one of them and it is an emergency, by all means go ahead. However ideally, one should not use a part devised for one device on another unless otherwise specified ( for example - Aerochambers) ...Read more

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Can you tell me if there are fast-acting inhalers that are safe for people with high blood pressure?

Can you tell me if there are fast-acting inhalers that are safe for people with high blood pressure?

Xopenex (levalbuterol): Xopenex (levalbuterol) is a type of inhaler which was designed to stimulate the heart less than with standard albuterol which can make the heart rate increase. ...Read more

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I'm taking dulera (formoterol and mometasone) as directed, .But i've been needing to take my albuteral inhaler daily and i been having mild pressure chest area need i go in?

I'm  taking dulera (formoterol and mometasone) as directed, .But i've been needing to take my albuteral inhaler daily and i been having mild pressure chest area need i go in?

Yes: This means that your asthma is not under control and you may need a modification or change in your medication. See ab allergist who may be able to help you on avoiding d triggers for your asthma as well ...Read more

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Its hard to breathe out easier to breathe in, I have a dry cough, pressure in my chest.I use inhaler but it works after an hour or so. Is it asthma?

Its hard to breathe out easier to breathe in, I have a dry cough, pressure in my chest.I use inhaler but it works after an hour or so. Is it asthma?

Smoking related?: You may have asthma, and/or be affected by your smoking. First, try quitting smoking and see if that makes a difference. You can also see your primary care provider or a lung specialist and have a test called spirometry, which can measure your lung capacity and make a diagnosis of asthma, if that is what you have. ...Read more

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I took one tablet of sudafed pe two hours ago and one puff of my albuterol inhaler 5 minutes ago. Except for sinus pressure I am otherwise healthy Wil?

I took one tablet of sudafed pe two hours ago and one puff of my albuterol inhaler 5 minutes ago. Except for sinus pressure I am otherwise healthy Wil?

Cold and flu?: Not sure exactly what you are asking but if you have upper respiratory symptoms and you are an asthmatic those are reasonable steps. If you are congested adding an anti-histamine may help also but decongestants do work better. ...Read more

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What is cough variant asthma? And do you prefer dry powder inhalers or metered dose inhalers for albuterol treatment of this condition?Which is Better

What is cough variant asthma? And do you prefer dry powder inhalers or metered dose inhalers for albuterol treatment of this condition?Which is Better

Cough variant asthma: Is type of asthma where cough is the most salient symptom, dry cough, but still have other asthma signs, at times it might be the only symptom and hard to diagnose. As for the albuterol form: whichever works, so long it is taken in the right way and produces the desired effect, but albuterol is just a quick fix, you need comprehensive treatment as any other asthmatic, see an allergist/pulmonol ...Read more

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How long should an EOE patient use Flovent inhaler? I have used it for 3 Years, one dose a day. Cost has doubled so I feel I must stop, if I can.

How long should an EOE patient use Flovent inhaler?  I have used it for 3 Years, one dose a day.  Cost has doubled so I feel I must stop, if I can.

See your Doctor: often times there are other medicines, coupons, patient assistance programs and even samples of similar medicines that we can help you with. If possible bring in your formulary from your insurance company so we can see what medications that are similar we can use. Between the two of us usually we can find something that will work and not break the bank. ...Read more

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Accidentally blew inside the symbicort inhaler. When I do my dose next will it affect it or increase it if some is left inside ?

Accidentally blew inside the symbicort inhaler. When I do my dose next will it affect it or increase it if some is left inside ?

No. You're okay!: I assume you mean you discharged it without meaning to. Or you exhaled instead of inhaled. The particles deposit within seconds and are no longer in the chamber unless you have a spacer attached. Even then, the particles only stay suspended in the chamber for a few minutes. ...Read more

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What will happen when high dose of aspirin is given to mi patients... Mechanism of action ?

What will happen when high dose of aspirin is given to mi patients... Mechanism of action  ?

Anti platelet action: Giving more then 325mg of Aspirin is not recommend in the usa. Aspirin is anti platelets drug that prevents blood clot formation. In mi patients it does that to minimize blood clot within blocked coronary artery. Mostly it is a cholesterol plaque that cracks leading to blood clot formation that further narrows the vessel limiting blood flow to the myocardium. ...Read more

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My Proair albuterol inhaler just reached zero on the dose counter. There is medicine left, can I still use it?

My Proair albuterol inhaler just reached zero on the dose counter. There is medicine left, can I still use it?

Maybe: It might be that when you reach ZERO on the counter, there is a little bit left, but not a reliable amount per puff. Therefore, when an inhaler is needed, if one has a new one, use the new one. If one has no new one, using the old one would be better than using nothing. One can get a refill when the pharmacy opens. ...Read more

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How dose imipramine incrases heart rate?Whats the mechanism?

How  dose imipramine incrases heart rate?Whats the mechanism?

Anticholinergic: It has a vagolytic effect i.e., it antagonizes the vagus nerve which would otherwise exert a slowing effect on heart rate so the net effect is for the heart to speed up ...Read more

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What are the most popular brands of metered dosed inhalers?

Albutero/combivent: Albuterol is a bronchodilator working through beta two receptors. Ipratropium in Combivent (albuterol and ipratropium) works through muscuranic recptors as an antiinflammatory. Albuterol is usally more of a rescue inhalier. It is short acting. You would benefit from being on something like advair or symbacort with albuterol to use in between those times when breathing is difficult. ...Read more

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How the mechanism when large doses of vitamin D injections will lead to tetany?

How the mechanism when large doses of vitamin D injections will lead to tetany?

Vit D deficiency: Tetany is caused by vitamin D deficiency, not overdose. Adverse effects associated with excessive vitamin D injection include weakness, headache, nausea, vomiting, muscle and bone pain. Later, frequent urination, thirst, weight loss, kidney problems, cardiac arrhythmias and, rarely, psychosis can occur. ...Read more

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No matter how, many home nebulizer treatments I do or doses off my rescue inhaler i still have had breathing difficulty last week, ER or my internist?

No matter how, many home nebulizer treatments I do or doses off my rescue inhaler i still have had breathing difficulty last week, ER or my internist?

ER: It sounds like the Er is the safest place for you. When your usual medications and rescue medications don't work, you need a close evaluation of your oxygen levels as well as a look at blood work and your lungs. You may need intravenous medicines as well. Most doctors offices are not equipped for this and if you are seriously ill the ER is the best place. ...Read more

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