The 4 Stages of COPD

If you are diagnosed with COPD, your stage is determined by your symptoms and your lung function. Your doctor can determine your lung function using a machine called a spirometer, which tests how well you can breathe air in and out of your lungs.

Since the symptoms of COPD worsen over time, your stage is likely to progress as well. Talk to your doctor to find out which medications are best for you.

Stage 1: Mild
Mild COPD is usually characterized by mild airflow limitation. Chronic cough and mucus production are some of the possible symptoms, but often a person with mild COPD is unaware that his/her lung function is abnormal. TUDORZA has not been studied in patients with mild COPD.

Stage 2: Moderate
With moderate COPD, the airflow limitation worsens. Shortness of breath can also occur, typically after exertion. At this stage, patients typically begin to seek medical attention because of their symptoms.

Stage 3: Severe
At stage 3, patients experience more limited breathing during the day and night, along with greater shortness of breath, and increased mucus while coughing. They can also have difficulty recovering from lung infections or colds and may need oxygen therapy. It is estimated that about 71% of severe patients have chronic bronchitis.

Stage 4: Very Severe
In the case of very severe COPD, patients will experience all of the previously mentioned symptoms along with very limited airflow and possible respiratory failure, which can lead to heart failure.

To find out how these symptoms can be treated, visit Treating COPD   


TUDORZA PRESSAIR is a prescription medicine used long term, 2 times each day to treat symptoms of chronic obstructive pulmonary disease (COPD), including chronic bronchitis and emphysema.

TUDORZA is not a rescue medicine and should not be used for treating sudden breathing problems. Your doctor may give you other medicine to use for sudden breathing problems.


What important information should I know about TUDORZA?

TUDORZA is not a rescue medication and does not relieve sudden breathing problems. Always have a rescue inhaler medicine with you to treat sudden symptoms.

What should I tell my doctor before using TUDORZA?

Before you use TUDORZA, tell your doctor about all your medical conditions, including if you have eye problems (especially glaucoma), prostate or bladder problems, or problems passing urine. TUDORZA may make these problems worse. You should also let your doctor know if you have a severe allergy to milk proteins.

Tell your doctor about all the medicines you take, including prescription and non-prescription medicines and eyedrops. Especially tell your doctor if you take anticholinergics (including tiotropium, ipratropium) and atropine.

Do not use TUDORZA more often than prescribed or take more medicine than prescribed for you.

Seek immediate medical help if your breathing problems worsen with TUDORZA, you need to use your rescue inhaler more often than usual, or your rescue inhaler does not work as well for you.

What are the possible side effects of TUDORZA?

TUDORZA can cause serious side effects. Stop taking TUDORZA and seek medical help right away if you experience:

  • Sudden shortness of breath immediately after use of TUDORZA
  • New or worsened symptoms of increased pressure in your eyes (acute narrow-angle glaucoma), which may include eye pain, nausea or vomiting, blurred vision, seeing halos or bright colors around lights, or red eyes. Using only eyedrops to treat these symptoms may not work and if not treated, this could lead to permanent loss of vision
  • Symptoms of new or worsened urinary retention (difficult, painful, or frequent urination, or urination in a weak stream or drips)
  • Serious allergic reactions including rash, hives, swelling of the face, lips, tongue, or throat; breathing problems; and itching

What are the most common side effects of TUDORZA?

The most common side effects of TUDORZA include headache, common cold symptoms, and cough. These are not all the possible side effects with TUDORZA.

Please also see the full Prescribing Information, including Patient Information.