Drug

Acetaminophen, Dextromethorphan Hydrobromide, Guaifenesin, And Phenylephrine Hydrochloride

21 flagged reaction(s) · 468 total co-reports · max PRR 50.4

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	Disease Recurrence	107	50.4	56.8	signal
2	Covid-19	131	16.6	19.2	signal
3	Brain Fog	8	12.3	12.4	signal
4	Sars-cov-2 Test Positive	7	11.8	11.8	signal
5	Nasal Congestion	28	10.7	11.0	signal
6	Respiratory Tract Congestion	7	9.9	9.9	signal
7	Nasopharyngitis	78	9.5	10.2	signal
8	Anosmia	6	9.3	9.3	signal
9	Choking	8	9.2	9.3	signal
10	Product Administration Error	8	9.0	9.1	signal
11	Dysgeusia	29	8.7	9.0	signal
12	Aphonia	5	8.0	8.1	signal
13	Product Packaging Issue	3	7.3	7.3	signal
14	Mydriasis	4	7.0	7.0	signal
15	Dysmenorrhoea	4	6.9	6.9	signal
16	Drug Administration Error	9	6.5	6.5	signal
17	Drug Effect Less Than Expected	4	6.4	6.4	signal
18	Expired Product Administered	7	4.7	4.8	signal
19	Incorrect Product Administration Duration	4	4.4	4.4	signal
20	Completed Suicide	8	2.1	2.1	no signal
21	Drug Dose Omission By Device	3	0.9	0.9	no signal