Common questions about Flovent HFA (FAQ)
Q: How long does it usually take to feel the effects of Flovent HFA?
According to official product information, corticosteroids do not provide immediate relief from asthma symptoms. The time it takes to experience the full benefit can vary significantly among individuals. Maximum control may not be achieved for 1 to 2 weeks or longer after beginning the regular use of the medicine.
Q: What is the key difference between Flovent HFA and Flovent Diskus?
Both products contain the same active ingredient, fluticasone propionate, but they use different delivery devices. Flovent HFA is a pressurized metered-dose inhaler (MDI) that uses a propellant to deliver the medication. Flovent Diskus is a dry powder inhaler (DPI) that does not use a propellant.
Q: What is the role of a spacer device when using the Flovent HFA inhaler?
A spacer, or Valved Holding Chamber (VHC), is a device that can be used with the inhaler to help ensure proper delivery of the medication to the lungs. Using a spacer may also help reduce the potential for local side effects, such as developing a fungal infection (thrush) in the mouth or throat, by limiting medicine residue.
Q: Is Flovent HFA known to interact with common anti-depressant medications?
Official information indicates that the medicine is cleared from the body primarily through a specific enzyme in the liver (CYP3A4). The use of strong inhibitors of this enzyme—which may include certain anti-depressant or other prescription medications—can increase the levels of fluticasone in the blood. The potential for increased drug levels is noted in official warnings.
Q: What is the difference between the ingredients fluticasone propionate and fluticasone furoate?
These are two distinct chemical forms of inhaled corticosteroids. While both work to control inflammation, regulatory documents differentiate them primarily based on the official instructions for use. Fluticasone propionate is typically prescribed for twice-daily dosing, whereas fluticasone furoate is generally formulated for once-daily dosing.
Q: Is a generic version of Flovent HFA currently available in the US?
Yes, an authorized generic version of fluticasone propionate inhalation aerosol is available in the United States. This generic product contains the same active ingredient as Flovent HFA.
Q: What is the shelf life of an unopened Flovent HFA inhaler?
The official period during which an unopened inhaler can be used, known as the 'Beyond Use Date' or expiration date, is determined by the manufacturer. For products used past this date, official guidelines recommend discarding the product.
Q: How can a user reliably check the remaining number of puffs in the Flovent HFA canister?
The Flovent HFA inhaler device features an integrated dose counter on the canister that displays the number of metered sprays remaining. The device is designed to be replaced once the counter displays zero.
Q: Why is Flovent HFA administered as an inhaler and not a pill or tablet?
The medication is delivered through inhalation to allow it to work locally on the inflamed tissues in the lungs and airways. This delivery method provides high anti-inflammatory effects where they are needed most while resulting in negligible absorption into the body through the mouth or stomach.
Q: Is Flovent HFA used to treat Chronic Obstructive Pulmonary Disease (COPD) as well as asthma?
Official indications state that Flovent HFA is only intended for the maintenance treatment of asthma in patients aged 4 years and older. The product information does not include an indication for the treatment of Chronic Obstructive Pulmonary Disease (COPD).
Q: What is the meaning of the abbreviation 'HFA' in the drug name Flovent HFA?
The abbreviation HFA stands for Hydrofluoroalkane. This is the non-chlorofluorocarbon (CFC) propellant used inside the pressurized metered-dose inhaler (pMDI) to help spray the medication out of the device.
Q: What happens if the inhaler is dropped or exposed to extreme heat?
The canister is pressurized. Regulatory warnings indicate the canister must be protected from extreme heat, open flame, or temperatures above 120 F (49 C) due to a potential risk of explosion. Additionally, regulatory information states that if the inhaler is dropped, it needs to be re-primed before its next use.
Q: Is it normal to not feel or taste anything when using Flovent HFA?
Official information does not define what a user should typically feel or taste during a normal inhalation. While some reports of changes in taste or smell have been noted as potential adverse effects, a lack of strong sensation may be common due to the medication being locally targeted.
Q: Is Flovent HFA available in different strengths, and what do the numbers mean?
Yes, Flovent HFA is available in several different strengths, such as 44 micrograms, 110 micrograms, and 220 micrograms. These numbers represent the amount of the active ingredient, fluticasone propionate, delivered from the mouthpiece during a single spray, or actuation.