Drug

Zafirlukast

21 flagged reaction(s) · 400 total co-reports · max PRR 58.0

Important: Reactions below are the flagged terms from this drug’s FAERS report history (min. 3 co-reports per term) — PRR/ROR indicate disproportionality in spontaneous reporting, not causation. Data from FDA FAERS via openFDA. Last recalculated: 2026-09-14.

	Reaction	Co-reports (a)	PRR	ROR	Signal
1	Sputum Discoloured	23	58.0	59.6	signal
2	Emphysema	19	44.8	45.7	signal
3	Aphonia	22	37.6	38.5	signal
4	Pulmonary Mass	23	36.9	37.8	signal
5	Hiatus Hernia	19	34.9	35.7	signal
6	Impaired Quality Of Life	14	23.2	23.5	signal
7	Asthma	94	20.0	22.2	signal
8	Dyspnoea Exertional	31	19.7	20.4	signal
9	Wheezing	47	18.9	19.9	signal
10	Seasonal Allergy	10	16.9	17.1	signal
11	Respiratory Disorder	21	16.7	17.1	signal
12	Productive Cough	31	15.6	16.1	signal
13	Nerve Compression	5	12.9	13.0	signal
14	Increased Tendency To Bruise	4	10.3	10.4	signal
15	Spinal Operation	4	7.9	7.9	signal
16	Sleep Disorder Due To A General Medical Condition	5	7.4	7.4	signal
17	Dermatitis Atopic	13	6.2	6.3	signal
18	Injection Site Urticaria	4	3.9	3.9	signal
19	Device Delivery System Issue	4	3.6	3.7	signal
20	Injection Site Rash	4	3.1	3.1	no signal
21	Drug Dose Omission By Device	3	0.9	0.9	no signal