Side effects across medicines
Medicines whose labels list fever
1,120 medicines have an FDA label that names fever 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 fever name adalimumab (19,339), methotrexate (18,857) and etanercept (13,380), 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 fever?
Ordered by where the label names it, the boxed warning first, then by FAERS reports. The first 150 of the 1,120 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 fever |
|---|---|---|
| Methotrexate | warnings and precautions (intra-arterial/ | 18,857 |
| Dexamethasone | warnings and precautions (intramuscular/ | 10,995 |
| Methylprednisolone | precautions (intra-articular/ | 7,139 |
| Diclofenac | precautions (oral label) | 6,362 |
| Sulfamethoxazole and trimethoprim | precautions | 6,295 |
| Sulfasalazine | precautions | 5,364 |
| Levetiracetam | warnings and precautions (intravenous label) | 3,028 |
| Fludarabine | precautions | 2,930 |
| Carbamazepine | precautions | 2,729 |
| Olanzapine | warnings and precautions (intramuscular label) | 2,575 |
| Budesonide | warnings (nasal label) | 2,213 |
| Ceftriaxone | precautions | 2,054 |
| Triamcinolone | precautions (intra-articular/ | 1,374 |
| Clonidine | warnings (epidural label) | 1,350 |
| Hydroxyzine | precautions | 1,188 |
| Melphalan | precautions | 1,174 |
| Blinatumomab | warnings and precautions | 1,160 |
| Prochlorperazine | warnings (intramuscular/ | 1,078 |
| Obinutuzumab | warnings and precautions | 994 |
| Nitrofurantoin | precautions | 844 |
| Haloperidol | warnings (intramuscular label) | 824 |
| Busulfan | precautions (oral label) | 816 |
| Trimethoprim | precautions | 741 |
| Progesterone | warnings (intramuscular label) | 720 |
| Mesna | warnings and precautions (oral label) | 693 |
| Phenytoin | warnings and precautions (intramuscular/ | 686 |
| Tobramycin | precautions (intravenous label) | 685 |
| Amikacin | precautions | 648 |
| Indomethacin | warnings and precautions (rectal label) | 625 |
| Basiliximab | precautions | 618 |
| Rifampin | precautions | 571 |
| Ceftazidime | precautions | 542 |
| Heparin | precautions | 485 |
| Carbidopa and levodopa | warnings and precautions (enteral label) | 433 |
| Betamethasone | precautions (intra-articular/ | 419 |
| Glyburide | precautions | 407 |
| Minocycline | precautions | 392 |
| Ampicillin | precautions | 375 |
| Glycopyrrolate | warnings and precautions (oral label) | 311 |
| Aztreonam | precautions | 294 |
| Cladribine | precautions (intravenous label) | 287 |
| Cefotaxime | precautions | 281 |
| Isatuximab | warnings and precautions (subcutaneous label) | 281 |
| Zonisamide | precautions | 253 |
| Chlorambucil | precautions | 238 |
| Ofloxacin | precautions (oral label) | 211 |
| Abemaciclib | warnings and precautions | none in the top 1,000 |
| Acarbose | precautions | none in the top 1,000 |
| Acetazolamide | precautions | none in the top 1,000 |
| Alanine, arginine and 15 other ingredients | warnings and precautions | none in the top 1,000 |
| Amoxapine | precautions | none in the top 1,000 |
| Amoxicillin and clarithromycin and lansoprazole | precautions | none in the top 1,000 |
| Ampicillin and sulbactam | precautions | none in the top 1,000 |
| Anti-inhibitor coagulant complex | warnings and precautions | none in the top 1,000 |
| Aspirin and butalbital and caffeine | precautions | none in the top 1,000 |
| Aspirin and caffeine and orphenadrine | precautions | none in the top 1,000 |
| Aspirin and oxycodone | precautions | none in the top 1,000 |
| Axatilimab | warnings and precautions | none in the top 1,000 |
| Bacillus calmette-guerin substrain tice live antigen | precautions | none in the top 1,000 |
| Benztropine | warnings (intramuscular/ | none in the top 1,000 |
| Cabotegravir and rilpivirine | warnings and precautions | none in the top 1,000 |
| Camphor | warnings (respiratory (inhalation) label) | none in the top 1,000 |
| Carboprost | precautions | none in the top 1,000 |
| Cefadroxil | precautions | none in the top 1,000 |
| Cefotetan | precautions | none in the top 1,000 |
| Cefoxitin | precautions | none in the top 1,000 |
| Cefpodoxime | precautions | none in the top 1,000 |
| Cerliponase alfa | warnings and precautions | none in the top 1,000 |
| Chlorpromazine | warnings (intramuscular label) | none in the top 1,000 |
| Clindamycin | precautions | none in the top 1,000 |
| Clomipramine | precautions | none in the top 1,000 |
| Colistimethate | precautions | none in the top 1,000 |
| Daratumumab | warnings and precautions | none in the top 1,000 |
| Demeclocycline | precautions | none in the top 1,000 |
| Desipramine | precautions | none in the top 1,000 |
| Desmopressin | precautions | none in the top 1,000 |
| Dicloxacillin | precautions | none in the top 1,000 |
| Diflunisal | precautions | none in the top 1,000 |
| Dyclonine | warnings (oral label) | none in the top 1,000 |
| Entacapone | precautions | none in the top 1,000 |
| Etodolac | precautions | none in the top 1,000 |
| Flurbiprofen | warnings and precautions (oral label) | none in the top 1,000 |
| Fosfomycin | precautions | none in the top 1,000 |
| Hydrochlorothiazide and quinapril | precautions | none in the top 1,000 |
| Hydrocodone and ibuprofen | precautions | none in the top 1,000 |
| Hydrogen peroxide | warnings (oral label) | none in the top 1,000 |
| Imipramine | precautions | none in the top 1,000 |
| Ketorolac | precautions | none in the top 1,000 |
| Lincomycin | precautions | none in the top 1,000 |
| Mecamylamine | precautions | none in the top 1,000 |
| Methazolamide | precautions | none in the top 1,000 |
| Methimazole | precautions | none in the top 1,000 |
| Methsuximide | precautions | none in the top 1,000 |
| Miglitol | precautions | none in the top 1,000 |
| Mogamulizumab | warnings and precautions | none in the top 1,000 |
| Nabumetone | precautions | none in the top 1,000 |
| Nafcillin | precautions | none in the top 1,000 |
| Nalmefene | warnings and precautions (nasal label) | none in the top 1,000 |
| Naloxone | warnings (intramuscular/ | none in the top 1,000 |
| Oxacillin | precautions | none in the top 1,000 |
| Penicillamine | precautions | none in the top 1,000 |
| Penicillin g benzathine and penicillin g procaine | precautions | none in the top 1,000 |
| Phenobarbital | warnings and precautions (intravenous label) | none in the top 1,000 |
| Polymyxin b | precautions | none in the top 1,000 |
| Procainamide | precautions | none in the top 1,000 |
| Propylthiouracil | precautions | none in the top 1,000 |
| Quinapril | precautions | none in the top 1,000 |
| Rifabutin | precautions | none in the top 1,000 |
| Sevoflurane | precautions | none in the top 1,000 |
| Streptomycin | precautions | none in the top 1,000 |
| Sulfadiazine | precautions | none in the top 1,000 |
| Sulindac | precautions | none in the top 1,000 |
| Temsirolimus | warnings and precautions (intravenous label) | none in the top 1,000 |
| Thioguanine | precautions | none in the top 1,000 |
| Tolmetin | precautions | none in the top 1,000 |
| Trastuzumab-strf | warnings and precautions | none in the top 1,000 |
| Trientine | precautions | none in the top 1,000 |
| Trifluoperazine | precautions | none in the top 1,000 |
| Trihexyphenidyl | precautions | none in the top 1,000 |
| Trimethobenzamide | precautions | none in the top 1,000 |
| Triptorelin | warnings and precautions | none in the top 1,000 |
| Vinblastine | precautions | none in the top 1,000 |
| Ziprasidone | warnings and precautions (intramuscular label) | none in the top 1,000 |
| Adalimumab | adverse reactions | 19,339 |
| Etanercept | adverse reactions | 13,380 |
| Rituximab | adverse reactions | 11,717 |
| Pantoprazole | adverse reactions | 11,595 |
| Omeprazole | adverse reactions | 11,073 |
| Furosemide | adverse reactions | 10,062 |
| Infliximab | adverse reactions | 9,445 |
| Cyclophosphamide | adverse reactions | 9,242 |
| Levothyroxine | adverse reactions | 7,809 |
| Gabapentin | adverse reactions | 7,523 |
| Lenalidomide | adverse reactions | 7,264 |
| Oxycodone | adverse reactions | 6,649 |
| Allopurinol | adverse reactions | 6,074 |
| Tofacitinib | adverse reactions | 5,920 |
| Esomeprazole | adverse reactions (intravenous label) | 5,742 |
| Abatacept | adverse reactions | 5,736 |
| Mycophenolate mofetil | adverse reactions | 5,697 |
| Ondansetron | adverse reactions | 5,613 |
| Lisinopril | adverse reactions | 5,496 |
| Certolizumab | adverse reactions | 5,412 |
| Alendronate | adverse reactions | 5,207 |
| Simvastatin | adverse reactions | 5,192 |
| Interferon beta 1a | adverse reactions | 5,008 |
| Quetiapine | adverse reactions | 4,932 |
| Acyclovir | adverse reactions | 4,900 |
| Tacrolimus | adverse reactions | 4,878 |
| Carboplatin | adverse reactions | 4,848 |
Source: FDA drug labels via openFDA, read October 8, 2026; FAERS via openFDA, reports through July 30, 2026
Which of them have the most fever 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 “Pyrexia”
What next?
- Side effects across medicines
- every reaction on PlainMeds
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- MedWatch