Side effects across medicines
Medicines whose labels list neutropenia
450 medicines have an FDA label that names neutropenia 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 neutropenia name clozapine (18,898), cyclophosphamide (10,581) and lenalidomide (9,298), 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 neutropenia?
Ordered by where the label names it, the boxed warning first, then by FAERS reports. The first 150 of the 450 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 neutropenia |
|---|---|---|
| Cabazitaxel | boxed warning | 170 |
| Methotrexate | warnings and precautions (subcutaneous label) | 6,289 |
| Paclitaxel | precautions | 5,421 |
| Fluorouracil | warnings (topical label) | 5,177 |
| Cisplatin | precautions | 4,876 |
| Olanzapine | warnings and precautions (intramuscular label) | 2,158 |
| Fludarabine | precautions | 2,012 |
| Obinutuzumab | warnings and precautions | 1,355 |
| Piperacillin and tazobactam | warnings and precautions (intravenous/ | 945 |
| Azathioprine | precautions | 854 |
| Posaconazole | warnings and precautions (intravenous label) | 747 |
| Prochlorperazine | precautions | 551 |
| Haloperidol | precautions | 550 |
| Ruxolitinib | warnings and precautions (topical label) | 528 |
| Isatuximab | warnings and precautions (subcutaneous label) | 515 |
| Topotecan | warnings and precautions (oral label) | 484 |
| Busulfan | precautions (oral label) | 430 |
| Enalapril | precautions | 392 |
| Blinatumomab | warnings and precautions | 319 |
| Chlorambucil | precautions | 275 |
| Chlorpromazine | precautions | 271 |
| Aflibercept | warnings and precautions (intravenous label) | 220 |
| Carmustine | warnings and precautions | 206 |
| Foscarnet | precautions | 194 |
| Cefotaxime | precautions | 149 |
| Ibritumomab tiuxetan | warnings and precautions | 141 |
| Rifabutin | precautions | 119 |
| Mosunetuzumab | warnings and precautions (intravenous label) | 82 |
| Pentostatin | precautions | 76 |
| Tamoxifen | precautions | 67 |
| Romidepsin | warnings and precautions (intravenous label) | 61 |
| Hydrochlorothiazide and lisinopril | precautions | 56 |
| Loxapine | precautions | 40 |
| Abemaciclib | warnings and precautions | none in the top 1,000 |
| Amitriptyline and perphenazine | precautions | none in the top 1,000 |
| Asciminib | warnings and precautions | none in the top 1,000 |
| Asenapine | warnings and precautions (transdermal label) | none in the top 1,000 |
| Benazepril and hydrochlorothiazide | precautions | none in the top 1,000 |
| Cefdinir | precautions | none in the top 1,000 |
| Daratumumab | warnings and precautions | none in the top 1,000 |
| Deuruxolitinib | warnings and precautions | none in the top 1,000 |
| Enalapril and hydrochlorothiazide | precautions | none in the top 1,000 |
| Fluphenazine | precautions | none in the top 1,000 |
| Fosfomycin | warnings and precautions (intravenous label) | none in the top 1,000 |
| Fosinopril | precautions | none in the top 1,000 |
| Fosinopril and hydrochlorothiazide | precautions | none in the top 1,000 |
| Hyaluronidase and pertuzumab and trastuzumab | warnings and precautions | none in the top 1,000 |
| Hyaluronidase and trastuzumab | warnings and precautions | none in the top 1,000 |
| Hydrochlorothiazide and quinapril | precautions | none in the top 1,000 |
| Lurbinectedin | warnings and precautions | none in the top 1,000 |
| Moexipril | precautions | none in the top 1,000 |
| Molindone | precautions | none in the top 1,000 |
| Perphenazine | precautions | none in the top 1,000 |
| Pimozide | precautions | none in the top 1,000 |
| Quinapril | precautions | none in the top 1,000 |
| Sonrotoclax | warnings and precautions | none in the top 1,000 |
| Tarlatamab-dlle | warnings and precautions | none in the top 1,000 |
| Thioridazine | precautions | none in the top 1,000 |
| Thiothixene | precautions | none in the top 1,000 |
| Trastuzumab-strf | warnings and precautions | none in the top 1,000 |
| Trifluoperazine | precautions | none in the top 1,000 |
| Zanubrutinib | warnings and precautions | none in the top 1,000 |
| Ziprasidone | warnings and precautions (intramuscular label) | none in the top 1,000 |
| Clozapine | adverse reactions | 18,898 |
| Cyclophosphamide | adverse reactions | 10,581 |
| Lenalidomide | adverse reactions | 9,298 |
| Rituximab | adverse reactions | 8,271 |
| Carboplatin | adverse reactions | 7,436 |
| Palbociclib | adverse reactions | 6,728 |
| Oxaliplatin | adverse reactions | 4,206 |
| Ribociclib | adverse reactions | 4,093 |
| Bevacizumab | adverse reactions | 4,015 |
| Venetoclax | adverse reactions | 3,427 |
| Omeprazole | adverse reactions | 3,374 |
| Docetaxel | adverse reactions | 3,371 |
| Pomalidomide | adverse reactions | 3,342 |
| Gemcitabine | adverse reactions | 3,294 |
| Capecitabine | adverse reactions | 3,111 |
| Bortezomib | adverse reactions | 2,717 |
| Sulfamethoxazole and trimethoprim | adverse reactions | 2,652 |
| Mycophenolate mofetil | adverse reactions | 2,583 |
| Fulvestrant | adverse reactions | 2,485 |
| Pembrolizumab | adverse reactions | 2,336 |
| Trastuzumab | adverse reactions | 2,240 |
| Azacitidine | adverse reactions | 1,916 |
| Fluconazole | adverse reactions | 1,906 |
| Ifosfamide | adverse reactions | 1,905 |
| Pemetrexed | adverse reactions | 1,745 |
| Valacyclovir | adverse reactions | 1,620 |
| Quetiapine | adverse reactions | 1,554 |
| Ibrutinib | adverse reactions | 1,510 |
| Vancomycin | adverse reactions | 1,502 |
| Tocilizumab | adverse reactions | 1,275 |
| Ribavirin | adverse reactions | 1,273 |
| Melphalan | adverse reactions | 1,234 |
| Cetuximab | adverse reactions | 1,225 |
| Metoclopramide | adverse reactions | 1,218 |
| Bendamustine | adverse reactions | 1,169 |
| Valganciclovir | adverse reactions | 1,147 |
| Peginterferon alfa 2a | adverse reactions | 1,118 |
| Carfilzomib | adverse reactions | 1,114 |
| Risperidone | adverse reactions | 1,080 |
| Temozolomide | adverse reactions | 1,035 |
| Pertuzumab | adverse reactions | 1,007 |
| Etanercept | adverse reactions | 962 |
| Meropenem | adverse reactions | 936 |
| Nivolumab | adverse reactions | 905 |
| Adalimumab | adverse reactions | 894 |
| Aripiprazole | adverse reactions | 892 |
| Metronidazole | adverse reactions | 882 |
| Thalidomide | adverse reactions | 834 |
| Atezolizumab | adverse reactions | 833 |
| Ceftriaxone | adverse reactions | 797 |
| Diazepam | adverse reactions | 732 |
| Doxycycline | adverse reactions | 722 |
| Leflunomide | adverse reactions | 704 |
| Aprepitant | adverse reactions | 694 |
| Ixazomib | adverse reactions | 671 |
| Vinorelbine | adverse reactions | 668 |
| Everolimus | adverse reactions | 667 |
| Alemtuzumab | adverse reactions | 644 |
| Infliximab | adverse reactions | 641 |
| Irinotecan | adverse reactions | 618 |
| Polatuzumab vedotin | adverse reactions | 609 |
| Ganciclovir | adverse reactions | 597 |
| Mercaptopurine | adverse reactions | 596 |
| Venlafaxine | adverse reactions | 589 |
| Brentuximab vedotin | adverse reactions | 586 |
| Pegaspargase | adverse reactions | 572 |
| Cefepime | adverse reactions | 554 |
| Valsartan | adverse reactions | 538 |
| Eribulin | adverse reactions | 537 |
| Sacituzumab govitecan | adverse reactions | 510 |
| Mitoxantrone | adverse reactions | 465 |
| Fosaprepitant | adverse reactions | 460 |
| Sunitinib | adverse reactions | 459 |
| Sulfasalazine | adverse reactions | 432 |
| Zidovudine | adverse reactions | 414 |
| Ocrelizumab | adverse reactions | 413 |
| Thiotepa | adverse reactions | 412 |
| Imatinib | adverse reactions | 411 |
| Azithromycin | adverse reactions | 390 |
| Tofacitinib | adverse reactions | 353 |
| Clarithromycin | adverse reactions | 346 |
| Tipiracil and trifluridine | adverse reactions | 340 |
| Ceftazidime | adverse reactions | 327 |
| Ritonavir | adverse reactions | 312 |
| Itraconazole | adverse reactions | 300 |
| Fish oil | adverse reactions | 292 |
| Decitabine | adverse reactions | 287 |
Source: FDA drug labels via openFDA, read October 8, 2026; FAERS via openFDA, reports through July 30, 2026
Which of them have the most neutropenia 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 “Neutropenia”
What next?
- Side effects across medicines
- every reaction on PlainMeds
- Report a side effect to the FDA
- MedWatch