Serevent Evohaler should be used regularly. The full benefits of treatment will be apparent after several doses It helps the airways in the lungs to stay open. This makes it easier for air to get in and out. The effects are usually felt within 10 to 20 minutes and last for 12 hours or more.

How to use Serevent evohaler

  • Make sure the canister fits firmly in the actuator. The counter should show through the
    window in the actuator.
  • Shake the inhaler well before each spray.
  • Take the cap off the mouthpiece of the actuator. Look inside the mouthpiece for foreign objects, and take out any you see.
  • Hold the inhaler with the mouthpiece down.
  • Breathe out through your mouth and push as much air from your lungs as you can. Put the mouthpiece in your mouth and close your lips around it.
  • Push the top of the canister all the way down while you breathe in deeply and slowly through your mouth.
  • After the spray comes out, take your finger off the canister. After you have breathed in all the way, take the inhaler out of your mouth and close your mouth.
  • Hold your breath for about 10 seconds, or for as long as is comfortable. Breathe out slowly as long as you can.
  • Put the cap back on the mouthpiece after every time you use the inhaler. Make sure it snaps firmly into place.

Serevent common side effects include feeling shaky or nervous, headaches, muscle cramps, and palpitations.


These product images are for illustrative purposes only.


See Patient leaflet information here

Additional information

Pack Size



25mcg, 50mcg