Some of the terms on this site may be unfamiliar to you. Here is a glossary for your reference.

Antibiotic [an-ti-bi-ott-ik]

A drug that kills bacteria or slows bacterial growth. Antibiotics are often used to treat lung infections.

Bacteria [bak-teer-ee-uh] (sometimes referred to as "bacterium" in the singular)

Very small, single-celled organisms that can reproduce quickly and are capable of causing an infection.

Chronic lung infection

A lung infection that lasts for a long time.


Forced expiratory volume in 1 second (FEV1), or the amount of air you can blow out in 1 second. FEV1 is used to measure lung function.

Genetic [je-ne-tik]

Inherited from your parents through their genes.

Inhalation [in-hale-ay-shun]

The breathing in of an airborne substance that may be in the form of a gas, mist, vapor, powder, or aerosol.

Lung function [luhng fuhngk-shun]

When evaluating efficacy of TOBI Podhaler, measured by FEV1. After FEV1 is measured, it is expressed as a percentage of the predicted normal FEV1 value for the patient, or FEV1% predicted.

Mucus [myu-kus]

A slippery substance secreted by cells and glands in the mucous membrane. People with cystic fibrosis produce thicker mucus than healthy people do, which can clog their lungs.

Nebulizer [neb-u-lye-zer]

A device for creating and administering an aerosol spray.


Following the on-cycle, the 28 days when you are off treatment.


The 28 days when you are on treatment.

Pseudomonas aeruginosa (soo-doh-MOH-nass ah-ru-ji-NOH-sa)

A type of bacteria that can cause lung infections in people with cystic fibrosis. Pa is the abbreviation.

PulmoSphere [pul-moh-sfeere]

Developed by Novartis Pharmaceuticals Corporation, PulmoSphere particles allow the necessary amount of antibiotic to be delivered in a dry-powder form.