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Medicine side effects in cats

149,564 reports to the FDA about cats, covering 179 medicines with enough reports to analyse. Pick a medicine to see what was reported.

Flea and tick treatment

Spinosad (Comfortis)11,584 reports Nitenpyram (Capstar)8,744 reports Imidacloprid + Moxidectin (Advantage Multi)8,157 reports Lufenuron1,108 reports Flumethrin + Imidacloprid (Seresto)674 reports Imidacloprid + Pyriproxyfen655 reports Fipronil503 reports Fipronil + S-methoprene (Frontline Plus)367 reports Imidacloprid252 reports

Macrocyclic lactone (heartworm and parasite prevention)

Selamectin (Revolution)21,959 reports Eprinomectin + Esafoxolaner + Praziquantel (NexGard Combo)3,247 reports Ivermectin (Heartgard)965 reports Eprinomectin + Praziquantel585 reports Milbemycin Oxime (Interceptor)405 reports Milbemycin Oxime + Spinosad (Trifexis)300 reports Ivermectin + Pyrantel (Heartgard Plus)66 reports

Antibiotic

Cefovecin (Convenia)8,685 reports Amoxicillin + Clavulanate (Clavamox)2,387 reports Enrofloxacin (Baytril)1,580 reports Amoxicillin513 reports Metronidazole392 reports Doxycycline259 reports Enrofloxacin + Silver Sulfadiazine50 reports

Dewormer

Emodepside + Praziquantel (Profender)5,730 reports Praziquantel1,661 reports Praziquantel + Pyrantel1,260 reports Pyrantel560 reports Fenbendazole285 reports Febantel + Praziquantel + Pyrantel (Drontal Plus)70 reports Pyrantel + Sarolaner (Simparica Trio)50 reports

Isoxazoline flea and tick medicine

Fluralaner (Bravecto)10,635 reports Sarolaner + Selamectin (Revolution Plus)8,227 reports Fluralaner + Moxidectin (Bravecto Plus)3,239 reports Lotilaner (Credelio)901 reports Sarolaner (Simparica)255 reports Afoxolaner (NexGard)80 reports

Non-steroidal anti-inflammatory drug (NSAID)

Meloxicam (Metacam)3,653 reports Robenacoxib (Onsior)3,276 reports Carprofen (Rimadyl)1,709 reports Deracoxib (Deramaxx)101 reports Firocoxib (Previcox)52 reports

Vaccine

Rabies Vaccine2,586 reports Feline Core Vaccine1,553 reports Feline Leukemia Vaccine799 reports Distemper-parvo Vaccine277 reports Chlamydia Psittaci Killed + Feline Core Vaccine56 reports

Hormone or endocrine medicine

Velagliflozin (Senvelgo)4,798 reports Bexagliflozin (Bexacat)4,053 reports Insulin3,747 reports Methimazole1,781 reports

Corticosteroid

Prednisolone1,234 reports Prednisone889 reports Dexamethasone + Neomycin + Thiabendazole802 reports Dexamethasone765 reports

Sedative or anaesthetic

Buprenorphine5,599 reports Dexmedetomidine (Dexdomitor)2,626 reports Butorphanol + Dexmedetomidine + Ketamine128 reports

Stomach and nausea medicine

Maropitant (Cerenia)3,847 reports Mirtazapine (Mirataz)1,878 reports Capromorelin (Entyce)821 reports

Behaviour or anxiety medicine

Gabapentin1,955 reports Fluoxetine242 reports Clomipramine (Clomicalm)123 reports

Anti-itch medicine

Cyclosporine (Atopica)3,039 reports Oclacitinib (Apoquel)463 reports

Monoclonal antibody injection

Frunevetmab (Solensia)8,035 reports

Heart medicine

Pimobendan (Vetmedin)146 reports

Other medicines

Ketamine3,234 reports Butorphanol2,241 reports Isoflurane2,031 reports Tiletamine + Zolazepam1,658 reports Methylprednisolone1,607 reports Propofol1,170 reports Atipamezole1,037 reports Midazolam748 reports Florfenicol + Mometasone + Terbinafine694 reports Orbifloxacin678 reports Molidustat613 reports Acepromazine591 reports Marbofloxacin567 reports Pradofloxacin518 reports Medetomidine492 reports Clindamycin472 reports Alfaxalone471 reports Itraconazole434 reports Polysulfated Glycosaminoglycan428 reports Famotidine406 reports Amlodipine395 reports Sevoflurane387 reports Vitamin B12386 reports Diphenhydramine368 reports Sulfadimethoxine317 reports Furosemide303 reports Ampicillin302 reports Telmisartan295 reports Hydromorphone273 reports Diazepam264 reports Spinetoram261 reports Betamethasone + Florfenicol + Terbinafine259 reports Atropine245 reports Bupivacaine236 reports Chondroitin + Glucosamine219 reports Ondansetron218 reports Pentobarbital + Phenytoin207 reports Epsiprantel204 reports Lactulose203 reports Polymyxin B198 reports Onsior174 reports Xylazine172 reports Triamcinolone157 reports Neomycin + Triamcinolone144 reports Clopidogrel138 reports Lidocaine136 reports Tresaderm Dermatological134 reports Anesthesia Gas134 reports Pregabalin131 reports Phenobarbital130 reports Semintra Telmisartan Ml127 reports Polyethylene Glycol126 reports Cefazolin113 reports Dichlorophene Toluene111 reports Lysine111 reports Enalapril110 reports Penicillin110 reports Budesonide109 reports Cisapride107 reports Oxygen105 reports Toceranib99 reports Methadone98 reports Naloxone96 reports Ketoconazole92 reports Anesthesia92 reports Sucralfate92 reports Rcp Lv90 reports Cephalexin89 reports Atenolol89 reports Potassium Gluconate88 reports Glucosamine87 reports Cefpodoxime87 reports Ketoprofen86 reports Epinephrine86 reports Metoclopramide84 reports L-lysine84 reports Fentanyl83 reports Azithromycin83 reports Neomycin + Polymyxin B82 reports Device Suture82 reports Dextrose81 reports Miconazole79 reports Neomycin77 reports Glycopyrrolate76 reports Benazepril76 reports Unspecified76 reports Liquid Dish Soap76 reports Betamethasone + Clotrimazole + Gentamicin75 reports Clotrimazole + Gentamicin + Mometasone73 reports Chlorambucil73 reports Leukemia71 reports Miralax68 reports Lactated Ringers64 reports Tobramycin63 reports Dasuquin63 reports Megestrol60 reports Pyriproxyfen60 reports Morphine58 reports Chlorpheniramine58 reports Tylosin57 reports Cefadroxil56 reports Amitriptyline56 reports Prazosin56 reports Steroid55 reports Vitamin B Complex55 reports Cetirizine55 reports Cosequin55 reports Potassium55 reports Adequan54 reports Mupirocin53 reports Sedative51 reports Tresaderm50 reports

Most reported reactions in cats

Vomiting 26,521 reports
Lethargy 20,688 reports
Hair loss 20,663 reports
Loss of appetite 20,377 reports
Death 13,354 reports
Itching 13,241 reports
Didn't work as expected 13,039 reports
Didn't stop fleas 12,510 reports
Application site reaction 12,133 reports
Drooling 8,412 reports
Behaviour change 8,143 reports
Diarrhea 7,638 reports
Restlessness or agitation 7,266 reports
Breathing problems 7,064 reports
Wobbliness (ataxia) 6,964 reports
Weight loss 6,818 reports
Kidney problems 6,710 reports
Fever 4,816 reports
Vocalising 4,701 reports
Liver problems 4,207 reports
Accidental exposure 3,913 reports
Seizures 3,906 reports
Tremors 3,859 reports
Hiding 3,568 reports
Eye or vision problems 3,429 reports
Ketosis 3,248 reports
Skin redness 3,239 reports
Dehydration 2,980 reports
Skin rash or irritation 2,972 reports
Swelling 2,912 reports

All reactions › · By breed ›