Side effects across medicines

Medicines whose labels list flushing

418 medicines have an FDA label that names flushing in its boxed warning, warnings, adverse reactions, trial table, patient leaflet or Drug Facts “stop use” warning (of the labels PlainMeds reads: each medicine's quoted label and up to eight more, by route and wording). Among them, the most FAERS reports of flushing name dimethyl fumarate (17,099), treprostinil (3,846) and lisinopril (3,785), through July 30, 2026. A label lists what its studies and reports found, and a report does not show that a medicine caused the event.

Check it at the source: the FDA FAERS public dashboard; FDA labels on DailyMed.

Which medicines' labels list flushing?

Ordered by where the label names it, the boxed warning first, then by FAERS reports. The first 150 of the 418 are below; every other one is on its medicine record. A medicine whose own indications name it, because it treats it, is not counted.

Medicine	Where a label names it	FAERS reports of flushing
Furosemide	precautions	2,528
Paclitaxel	precautions	1,630
Enalapril	precautions	335
Metronidazole	precautions	312
Brimonidine	warnings and precautions (topical label)	306
Aprepitant	warnings and precautions (intravenous label)	284
Hydrochlorothiazide and lisinopril	precautions	191
Obinutuzumab	warnings and precautions	134
Quinapril	precautions	109
Atropine and diphenoxylate	precautions	101
Magnesium sulfate	precautions (intramuscular/intravenous label)	97
Ketoconazole	precautions (oral label)	66
Captopril	precautions	62
Clobetasol	precautions	55
Tranexamic acid	warnings and precautions (oral label)	41
Cabotegravir and rilpivirine	warnings and precautions	40
Fosinopril	precautions	38
Temsirolimus	warnings and precautions (intravenous label)	37
Arginine	precautions	none in the top 1,000
Axatilimab	warnings and precautions	none in the top 1,000
Benazepril and hydrochlorothiazide	precautions	none in the top 1,000
Bivalirudin	warnings and precautions (intracavernous label)	none in the top 1,000
Captopril and hydrochlorothiazide	precautions	none in the top 1,000
Cefotetan	precautions	none in the top 1,000
Enalapril and hydrochlorothiazide	precautions	none in the top 1,000
Enalaprilat	precautions	none in the top 1,000
Fosinopril and hydrochlorothiazide	precautions	none in the top 1,000
Hydrochlorothiazide and quinapril	precautions	none in the top 1,000
Mesna	warnings and precautions (oral label)	none in the top 1,000
Moexipril	precautions	none in the top 1,000
Pralidoxime	precautions	none in the top 1,000
Trandolapril and verapamil	precautions	none in the top 1,000
Dimethyl fumarate	adverse reactions	17,099
Treprostinil	adverse reactions (oral label)	3,846
Lisinopril	adverse reactions	3,785
Levothyroxine	adverse reactions	3,435
Simvastatin	adverse reactions	3,010
Tadalafil	adverse reactions	2,834
Sildenafil	adverse reactions	2,785
Ambrisentan	adverse reactions	2,685
Infliximab	adverse reactions	2,529
Amlodipine	adverse reactions	1,641
Diroximel fumarate	adverse reactions	1,611
Macitentan	adverse reactions	1,599
Albuterol	adverse reactions (oral label)	1,490
Methylprednisolone	adverse reactions	1,205
Epoprostenol	adverse reactions	1,169
Escitalopram	adverse reactions	1,166
Selexipag	adverse reactions	1,147
Ondansetron	adverse reactions	1,096
Clonazepam	adverse reactions	1,082
Natalizumab	adverse reactions	1,055
Citalopram	adverse reactions	1,017
Zolpidem	adverse reactions	970
Rituximab	adverse reactions	946
Bupropion	adverse reactions	864
Oxaliplatin	adverse reactions	774
Topiramate	adverse reactions	628
Bosentan	adverse reactions	604
Lamotrigine	adverse reactions	508
Ascorbic acid	adverse reactions	481
Alemtuzumab	adverse reactions	453
Perflutren	adverse reactions	414
Ezetimibe and simvastatin	adverse reactions	407
Bisoprolol	adverse reactions	383
Metoclopramide	adverse reactions (intramuscular/intravenous label)	381
Duloxetine	adverse reactions	376
Lovastatin	adverse reactions	368
Sumatriptan	adverse reactions (subcutaneous label)	362
Monomethyl fumarate	adverse reactions	348
Ciprofloxacin	adverse reactions	339
Nitroglycerin	adverse reactions	314
Cetuximab	adverse reactions	304
Niacin	adverse reactions	297
Vancomycin	adverse reactions (oral label)	284
Etoposide	adverse reactions	283
Nifedipine	adverse reactions	272
Budesonide	adverse reactions (oral label)	261
Capecitabine	adverse reactions	249
Diltiazem	adverse reactions (intravenous label)	245
Ustekinumab	adverse reactions	244
Morphine	adverse reactions	243
Flutemetamol f 18	adverse reactions	242
Cyclosporine	adverse reactions	234
Abatacept	adverse reactions	231
Cyclophosphamide	adverse reactions	215
Oxybutynin	adverse reactions	210
Pegfilgrastim	adverse reactions	204
Hydromorphone	adverse reactions	190
Methocarbamol	adverse reactions	183
Benazepril	adverse reactions	175
Ferric carboxymaltose	adverse reactions	173
Propofol	adverse reactions	163
Risperidone	adverse reactions	156
Oxcarbazepine	adverse reactions	153
Ferric derisomaltose	adverse reactions	149
Human immunoglobulin g	adverse reactions	149
Letrozole	adverse reactions	147
Iohexol	adverse reactions	137
Carbidopa and levodopa	adverse reactions	133
Iopromide	adverse reactions	132
Granisetron	adverse reactions (subcutaneous label)	129
Buspirone	adverse reactions	123
Rizatriptan	adverse reactions	116
Ceftriaxone	adverse reactions	111
Eptinezumab	adverse reactions	111
Iron dextran	adverse reactions	110
Atomoxetine	adverse reactions	107
Milnacipran	adverse reactions	104
Mepolizumab	adverse reactions	102
Hydrochlorothiazide and irbesartan	adverse reactions	97
Ropinirole	adverse reactions	95
Amlodipine and olmesartan	adverse reactions	93
Indapamide	adverse reactions	92
Buprenorphine	adverse reactions (intramuscular/intravenous label)	90
Iodixanol	adverse reactions	89
Liothyronine	adverse reactions	86
Methadone	adverse reactions	84
Telmisartan	adverse reactions	79
Felodipine	adverse reactions	78
Acetylcysteine	adverse reactions	74
Desmopressin	adverse reactions	74
Isosorbide mononitrate	adverse reactions	74
Sorafenib	adverse reactions	74
Bremelanotide	adverse reactions	72
Ioversol	adverse reactions	71
Cromolyn	adverse reactions (oral label)	70
Piperacillin and tazobactam	adverse reactions	68
Vortioxetine	adverse reactions	68
Regadenoson	adverse reactions	67
Amlodipine and atorvastatin	adverse reactions	65
Doxepin	adverse reactions	64
Panitumumab	adverse reactions	64
Irinotecan	adverse reactions	62
Indomethacin	adverse reactions	60
Isotretinoin	adverse reactions	59
Lutetium oxodotreotide lu 177	adverse reactions	58
Phytonadione	adverse reactions	55
Sodium ferric gluconate complex	adverse reactions	55
Acetaminophen and oxycodone	adverse reactions	54
Amiodarone	adverse reactions	52
Eletriptan	adverse reactions	51
Labetalol	adverse reactions (intravenous label)	51
Midodrine	adverse reactions	50
Carfilzomib	adverse reactions	47
Flecainide	adverse reactions	47
Tramadol	adverse reactions	47
Etodolac	adverse reactions	45
Nortriptyline	adverse reactions	45
Nilotinib	adverse reactions	44

Source: FDA drug labels via openFDA, read October 8, 2026; FAERS via openFDA, reports through July 30, 2026

Which of them have the most flushing reports in FAERS?

Counts follow how widely a medicine is used and watched, and they are not a measure of how risky it is.

Source: FDA Adverse Event Reporting System (FAERS) via openFDA, reports through July 30, 2026; MedDRA preferred term “Flushing”

What next?

Side effects across medicines: every reaction on PlainMeds
Report a side effect to the FDA: MedWatch