Table 3.

Other medications prior to and at start of pirfenidone treatment

	n (%)
IPF-related treatment
Immediately before treatment start
Corticosteroids	6 (18.2%)
N-acetylcysteine	13 (39.4%)
Oxygen therapy	4 (12.1%)
Immediately after treatment start
Corticosteroids	7 (21.2%)
N-acetylcysteine	10 (30.3%)
Oxygen therapy	5 (15.2%)
Other	1 (3.0%)
Gastrointestinal treatment
Immediately before treatment start
Proton-pump inhibitors	14 (42.4%)
Immediately after treatment start
Proton-pump inhibitors	14 (42.4%)
Other	1 (3.0%)