What are Metered Dose Inhalers?
The parts of the MDI (metered dose inhaler) include the canister, medication/propellant, metering valve, actuator (or boot), and usually a dose counter. A picture below shows the MDI with its parts.(1)
Different types of medications are used in MDIs. One includes a short acting beta-agonist, which binds to the smooth muscle in your lungs, and opens the airways. The other are corticosteroid medications that suppress airway inflammation.
How do I use my Metered Dose Inhaler?
You will know when your MDI is empty because some have a dose counter. Make sure to read your medication guide for your MDI to determine how many puffs are available. Some devices will show you that there are 20 puffs available by having the counter box turn red.For ones that do not have a dose counter, you will have to manually count and record on paper including both priming and the therapy doses. This number is then subtracted from the number of puffs provided by the inhaler, which is shown in your medication guide.(1)
The Addition of A Spacer
1. Becker E, Holt TO, Wiles K, Myers T. A Patient’s Guide to Aerosol Medication Delivery, 3rd Edition, 2017. American Association for Respiratory Care. Aerosol medication delivery devices: pressurized metered dose inhalers. Available from: http://www.aarc.org/wp-content/uploads/2018/01/aerosol-guides-for-patients-3rd.pdf .
Accessed November 1, 2018
2. Newman SP. Principles of metered-dose inhaler design. Respiratory Care. 2005;50(9). 1177-1190. Available from: http://www.rcjournal.com/contents/09.05/09.05.1177.pdf .
Accessed November 1, 2018
My name is Artur Dzhurinskiy and I graduated from St. Louis College of Pharmacy in 2014 with a doctor of pharmacy degree. Through my academics I gained valuable experience learning about various medications that are used to treat disease states. I took pathophysiology, which helped me learn about how diseases in the body progress. I also took four different therapeutics courses, which helped me understand not only disease states, but how to select the proper medications for a disease based on guidelines. My favorite course while at college was pharmacology. I love learning about how medications work and how they affect the body (pharmacodynamics).
I am passionate writing about medications and disease states. I decided to get started with SB Medical because I have the opportunity to educate patients by writing about disease states and medications or medical devices. Hopefully through my writing I can educate patients about their disease states, medications, and medical devices.
I also have an interest in the drug development process and clinical trials. Primary literature is very important because new medications are being developed that could revolutionize the way we treat certain conditions. My main goal in the future is to hopefully write clinical trials and other regulatory documents relating to the drug approval process.
My main hobby includes playing chess. I play chess primarily online. Chess teaches you how to think strategically. Also, chess teaches you how to have a plan or goal in mind, which helps me in writing. The reason for this is because you need an explanation for every move you make in chess; just like you need an explanation for every sentence you write.