How do I use Proventil?

Use Proventil exactly as it was prescribed for you. Do not use the medication in larger amounts, or use it for longer than recommended by your doctor. Follow the instructions on your prescription label. Proventil may increase the risk of asthma-related death. Use only the prescribed dose of this medicine and follow all patient instructions for safe use. Talk with your doctor about your individual risks and benefits of using Proventil.

When using the inhaler device for the first time, prime it by spraying 4 test sprays into the air, away from your face. Shake well before priming. Also prime the inhaler if you have not used it for 2 weeks or longer, or if you have dropped the inhaler.

• bronchospasm (wheezing, chest tightness, trouble breathing), especially after starting a new canister of this medicine;

• chest pain and fast, pounding, or uneven heart beats;

• tremor, nervousness;

• low potassium (confusion, uneven heart rate, extreme thirst, increased urination, leg discomfort, muscle weakness or limp feeling); or

• dangerously high blood pressure (severe headache, blurred vision, buzzing in your ears, anxiety, confusion, chest pain, shortness of breath, uneven heartbeats, seizure).

If you have certain conditions, you may need a dose adjustment or special tests to safely use this medication. Before using Proventil, tell your doctor if you have:

• heart disease, high blood pressure, or congestive heart failure;

• a heart rhythm disorder;

• a seizure disorder such as epilepsy;

• diabetes; or

• overactive thyroid.

What happens if I miss a dose?

Use the medication as soon as you remember. If it is almost time for the next dose, skip the missed dose and use the medicine at the next regularly scheduled time. Do not use extra medicine to make up the missed dose.

What happens if I overdose?