Metered dose inhalers (MDI) are commonly used for asthma treatment. An MDI should never be put in the mouth but held two fingerwidths in FRONT of the mouth. However, if the MDI has a spacer, it can be placed in between the lips.
Take a deep breath before use
Breathe for 5 seconds with the inhaler activated
Hold breath for 10-15 seconds before slowly breathing out
If second dose is needed, wait 1-2 minutes before repeating
MDI medications can include Albuterol, Theophylline, Salmeterol, Advair, Fluticasone, Montelukast. These are a few of the more commonly used medications, be sure to look up side effects and contraindications.
Theophylline: toxicity can occur when serum level is higher than 20 mcg/nl. Look for early signs such as restlessness, nervousness, tremors, palpitations, and tachycardia.