Skip to main content

How is the new Primatene Mist different to the old formulation?

Medically reviewed by Drugs.com. Last updated on Nov 21, 2024.

Official Answer by Drugs.com

Why was the old Primatene Mist removed from the market?

The new Primatene Mist is a metered dose inhaler (MDI) of epinephrine containing hydrofluoroalkane (HFA) propellants instead of CFC propellants.

In 2011, OTC Primatene Mist (epinephrine) was removed from U.S. pharmacy shelves due to international agreements to phase out products worldwide containing ozone-depleting chlorofluorocarbons (CFCs). However, in 2018 Primatene Mist returned to the U.S. market with a newly patented formulation.

If you have used Primatene Mist for asthma symptoms, see a doctor if:

These may be signs that your asthma is getting worse. Asthma can be a life threatening condition if not properly treated.

Primatene Mist Instructions

Read next

Can you use an expired EpiPen in an emergency?

If someone is having an anaphylactic reaction, and all you have on hand is a recently expired EpiPen, then use it so long as it is not discolored and does not contain any particles. There is minimal risk in using a recently expired EpiPen, but the benefits are significant. But check the clear viewing window of the pen and if you notice it is discolored or contains particles then don’t use it as the solution may have oxidized, making it less effective. Continue reading

What's the mechanism of action for epinephrine?

Epinephrine works by activating both alpha and beta receptors found in your body in response to a severe allergy (called anaphylaxis). By acting on alpha receptors, it helps to maintain your blood pressure and heart function, and by acting on beta receptors, it relaxes your lung airways to help relieve shortness of breath and wheezing. Continue reading

Can you bring an EpiPen on a plane?

You can bring your EpiPen onto a plane – they are a common medical device and they should not cause any fuss when you are going through airport security. You can carry them in your handbag, laptop bag, or other carry-on luggage. It is a very good idea to take your EpiPen with you on the plane because the small confines of an aircraft increase your odds of being exposed to a trigger allergen while you are flying and having an anaphylactic reaction. Continue reading

See also:

Related medical questions

Drug information

Related support groups