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Keflex (Cephalexin) - Side Effect Reports to FDA

 
 



This is an index of side effect / adverse reaction reports (a.k.a. adverse event reports) related to Keflex (Cephalexin) and submitted to the FDA during the sample period of about a year. The information is not vetted and should not be considered as verified clinical evidence.

Reports by Event Outcome

All Cases (95)
Death (1)
Life Threatening Events (3)

Reports by Reaction Type

Drug Hypersensitivity (41)Rash (10)Drug Ineffective (9)Hypersensitivity (8)Nausea (7)Cellulitis (5)Staphylococcal Infection (5)Arthralgia (5)Adverse Drug Reaction (4)Urticaria (4)Headache (4)Intentional Drug Misuse (4)

Below are a few examples of reports where side effects / adverse reactions may be related to Keflex (Cephalexin). For a complete list or a specific selection of reports, please use the links above.

Possible Keflex side effects in 46 year old female

Reported by a health professional (non-physician/pharmacist) from United States on 2012-08-27

Patient: 46 year old female

Reactions: Drug Hypersensitivity

Drug(s) suspected as cause:
Benadryl
    Dosage: unk

Codeine Sulfate
    Dosage: unk

Demerol
    Dosage: unk

Keflex
    Dosage: unk

Prevacid
    Dosage: unk

Prilosec
    Dosage: unk

Tobramycin
    Dosage: unk



Possible Keflex side effects in 61 year old female

Reported by a physician from United States on 2012-08-24

Patient: 61 year old female, weighing 91.0 kg (200.2 pounds)

Reactions: Drug Hypersensitivity

Drug(s) suspected as cause:
Celebrex
    Dosage: unk

Keflex
    Dosage: unk



Possible Keflex side effects in 71 year old

Reported by a physician from United States on 2012-08-21

Patient: 71 year old

Reactions: NO Adverse Event

Drug(s) suspected as cause:
Allopurinol
    Dosage: unk

Flagyl
    Dosage: unk

Keflex
    Dosage: unk



Possible Keflex side effects in 71 year old

Reported by a physician from United States on 2012-08-20

Patient: 71 year old

Reactions: NO Adverse Event

Drug(s) suspected as cause:
Allopurinol
    Dosage: unk

Flagyl
    Dosage: unk

Keflex
    Dosage: unk



Possible Keflex side effects in 71 year old

Reported by a physician from United States on 2012-08-06

Patient: 71 year old

Reactions: Drug Hypersensitivity

Drug(s) suspected as cause:
Allopurinol
    Dosage: unk

Flagyl
    Dosage: unk

Keflex
    Dosage: unk



Possible Keflex side effects in 57 year old female

Reported by a physician from United States on 2012-08-06

Patient: 57 year old female

Reactions: Urticaria, Drug Hypersensitivity

Drug(s) suspected as cause:
Doxycycline Hyclate
    Dosage: unk

Ilosone
    Dosage: unk

Keflex
    Dosage: unk

Vioxx
    Dosage: unk



Possible Keflex side effects in male

Reported by a physician from United States on 2012-08-01

Patient: male, weighing 108.0 kg (237.6 pounds)

Reactions: Blood Creatine Phosphokinase Increased, Drug Ineffective, Joint Hyperextension, Urinary Tract Infection, Blood Triglycerides Increased, Prostatomegaly, Fall, Hepatic Enzyme Increased

Drug(s) suspected as cause:
Humira
    Indication: Crohn's Disease
    Start date: 2008-02-02

Keflex
    Indication: Urinary Tract Infection
    Start date: 2011-06-01

Trilipix
    Indication: Dyslipidaemia
    End date: 2011-01-01

Other drugs received by patient: Vitamin B-12; Bupropion Hydrochloride; Singulair; Calcium Citrate; Claritin; Asmanex Twisthaler; Proventil-HFA; Allopurinol; Lisinopril; Protonix; Aspirin; Vitamin D; Questran; Lovaza; Multi-Vitamins; Foradil; Tramadol Hydrochloride



Possible Keflex side effects in female

Reported by a consumer/non-health professional from United States on 2012-07-25

Patient: female

Reactions: Drug Hypersensitivity

Drug(s) suspected as cause:
Abilify
    Dosage: unk

Aspirin
    Dosage: unk

Benadryl
    Dosage: unk

Demerol
    Dosage: unk

Keflex
    Dosage: unk

Lisinopril
    Dosage: unk

Morphine Sulfate
    Dosage: unk

Ranitidine
    Dosage: unk

Ropinirole
    Dosage: unk

Seroquel
    Dosage: unk

Tetracycline HCL
    Dosage: unk



Possible Keflex side effects in male

Reported by a physician from United States on 2012-07-10

Patient: male

Reactions: NO Adverse Event

Drug(s) suspected as cause:
Bactrim
    Dosage: unk

Codeine Sulfate
    Dosage: unk

Keflex
    Dosage: unk

PEN-VEE K
    Dosage: unk

Potassium Penicillin G
    Dosage: unk



Possible Keflex side effects in female

Reported by a consumer/non-health professional from United States on 2012-07-09

Patient: female, weighing 127.0 kg (279.4 pounds)

Reactions: Drug Hypersensitivity

Drug(s) suspected as cause:
Bacitracin
    Dosage: unk

Keflex
    Dosage: unk



Possible Keflex side effects in male

Reported by a physician from United States on 2012-07-09

Patient: male

Reactions: NO Adverse Event

Drug(s) suspected as cause:
Bactrim
    Dosage: unk

Codeine Sulfate
    Dosage: unk

Keflex
    Dosage: unk

PEN-VEE K
    Dosage: unk

Potassium Penicillin G
    Dosage: unk



Possible Keflex side effects in female

Reported by a consumer/non-health professional from United States on 2012-07-06

Patient: female

Reactions: Drug Hypersensitivity

Drug(s) suspected as cause:
Amoxapine
    Indication: Product Used FOR Unknown Indication

AN Unknown Medication
    Indication: Product Used FOR Unknown Indication

Augmentin '125'
    Indication: Product Used FOR Unknown Indication

Benadryl
    Indication: Product Used FOR Unknown Indication

Betamethasone
    Indication: Product Used FOR Unknown Indication

Biaxin XL
    Indication: Product Used FOR Unknown Indication

Ceftin
    Indication: Product Used FOR Unknown Indication

Ciprofloxacin HCL
    Indication: Product Used FOR Unknown Indication

Claritin
    Indication: Product Used FOR Unknown Indication

Cleocin Hydrochloride
    Indication: Product Used FOR Unknown Indication

Clindamycin
    Indication: Product Used FOR Unknown Indication

Codeine Sulfate
    Indication: Product Used FOR Unknown Indication

Darvocet
    Indication: Product Used FOR Unknown Indication

Darvon
    Indication: Product Used FOR Unknown Indication

Demadex
    Indication: Product Used FOR Unknown Indication

Demerol
    Indication: Product Used FOR Unknown Indication

Erythromycin
    Indication: Product Used FOR Unknown Indication

Flexeril
    Indication: Product Used FOR Unknown Indication

Floxin
    Indication: Product Used FOR Unknown Indication

Fosamax
    Indication: Product Used FOR Unknown Indication

Gantrisin
    Indication: Product Used FOR Unknown Indication

Gentamicin
    Indication: Product Used FOR Unknown Indication

Geocillin
    Indication: Product Used FOR Unknown Indication

Hismanal
    Indication: Product Used FOR Unknown Indication

Intravenous Pyelogram DYE
    Indication: Product Used FOR Unknown Indication

Keflex
    Indication: Product Used FOR Unknown Indication

Ketoconazole
    Indication: Product Used FOR Unknown Indication

Ketoprofen
    Indication: Product Used FOR Unknown Indication

Konsyl
    Indication: Product Used FOR Unknown Indication

Levaquin
    Indication: Product Used FOR Unknown Indication

Levsinex
    Indication: Product Used FOR Unknown Indication

Lopid
    Indication: Product Used FOR Unknown Indication

Macrobid
    Indication: Product Used FOR Unknown Indication

Macrodantin
    Indication: Product Used FOR Unknown Indication

Mandelamine
    Indication: Product Used FOR Unknown Indication

Maxaquin
    Indication: Product Used FOR Unknown Indication

Metronidazole
    Indication: Product Used FOR Unknown Indication

Monistat

Monistat
    Indication: Product Used FOR Unknown Indication

Negram Powder
    Indication: Product Used FOR Unknown Indication

Nilstat
    Indication: Product Used FOR Unknown Indication

Noroxin
    Indication: Product Used FOR Unknown Indication

Norpramin
    Indication: Product Used FOR Unknown Indication

Omniflox
    Indication: Product Used FOR Unknown Indication

Orphenadrine Citrate
    Indication: Product Used FOR Unknown Indication

Pentazocine Lactate
    Indication: Product Used FOR Unknown Indication

Persantine
    Indication: Product Used FOR Unknown Indication

Premarin
    Indication: Product Used FOR Unknown Indication

Propantheline Bromide
    Indication: Product Used FOR Unknown Indication

Quinolone
    Indication: Product Used FOR Unknown Indication

Sinequan
    Indication: Product Used FOR Unknown Indication

SLO-BID
    Indication: Product Used FOR Unknown Indication

Sulfur
    Indication: Product Used FOR Unknown Indication

Suprax
    Indication: Product Used FOR Unknown Indication

TAO
    Indication: Product Used FOR Unknown Indication

Tavist-D
    Indication: Product Used FOR Unknown Indication

Tetracycline
    Indication: Product Used FOR Unknown Indication

Theo-DUR
    Indication: Product Used FOR Unknown Indication

Trimpex
    Indication: Product Used FOR Unknown Indication

Urised
    Indication: Product Used FOR Unknown Indication

Valium
    Indication: Product Used FOR Unknown Indication



Possible Keflex side effects in

Reported by a physician from United States on 2012-07-06

Patient:

Reactions: Drug Hypersensitivity

Drug(s) suspected as cause:
Keflex
    Dosage: unk

Septra
    Dosage: unk

Zithromax
    Dosage: unk



Possible Keflex side effects in

Reported by a physician from United States on 2012-07-05

Patient:

Reactions: Drug Hypersensitivity

Drug(s) suspected as cause:
Amoxicillin
    Dosage: unk

Keflex
    Dosage: unk

Potassium Penicillin G
    Dosage: unk

Tetanus Antitoxin
    Dosage: unk

Tetracycline Hydrochloride
    Dosage: unk



Possible Keflex side effects in female

Reported by a physician from United States on 2012-07-03

Patient: female

Reactions: Drug Hypersensitivity

Drug(s) suspected as cause:
Aleve
    Dosage: unk

Colchicine
    Dosage: unk

Keflex
    Dosage: unk

Minocin
    Dosage: unk

Naproxen Sodium
    Dosage: unk

Potassium Penicillin G
    Dosage: unk



Possible Keflex side effects in female

Reported by a physician from United States on 2012-07-03

Patient: female, weighing 54.4 kg (119.7 pounds)

Reactions: Hypersensitivity, Drug Hypersensitivity

Drug(s) suspected as cause:
Clindamycin HCL
    Dosage: unk

Keflex
    Dosage: unk

Potassium Penicillin G
    Dosage: unk

Vancomycin Hychloride
    Dosage: unk



Possible Keflex side effects in 59 year old male

Reported by a consumer/non-health professional from United States on 2012-07-02

Patient: 59 year old male

Reactions: Blood Creatine Phosphokinase Increased, Drug Ineffective, Joint Hyperextension, Urinary Tract Infection, Blood Triglycerides Increased, Fall, Hepatic Enzyme Increased, Prostatomegaly

Drug(s) suspected as cause:
Humira
    Indication: Crohn's Disease
    Start date: 2009-03-01

Keflex
    Indication: Urinary Tract Infection
    Start date: 2011-06-01

Trilipix
    Indication: Product Used FOR Unknown Indication
    End date: 2011-01-01

Other drugs received by patient: Allopurinol; Questran; Bupropion Hydrochloride; Vitamin D; Asmanex Twisthaler; Foradil; Proventil-HFA; Lovaza; Vitamin B-12; Tramadol HCL; Aspirin; Singulair; Claritin; Multi-Vitamins; Calcium Citrate; Lisinopril; Protonix



Possible Keflex side effects in female

Reported by a physician from United States on 2012-06-26

Patient: female

Reactions: Drug Hypersensitivity

Drug(s) suspected as cause:
Ceclor
    Dosage: unk

Keflex
    Dosage: unk

Morphine Sulfate
    Dosage: unk

Potassium Penicillin G
    Dosage: unk



Possible Keflex side effects in female

Reported by a health professional (non-physician/pharmacist) from United States on 2012-06-25

Patient: female

Reactions: Drug Hypersensitivity

Drug(s) suspected as cause:
Keflex
    Dosage: unk

Lyrica
    Dosage: unk

Potassium Penicillin G
    Dosage: unk



Possible Keflex side effects in female

Reported by a consumer/non-health professional from United States on 2012-06-22

Patient: female

Reactions: Drug Hypersensitivity

Drug(s) suspected as cause:
Augmentin '125'
    Dosage: unk

Benadryl
    Dosage: 2% spray

Butorphanol
    Dosage: unk

Celebrex
    Dosage: unk

Ciprofloxacin HCL
    Dosage: unk

Clindamycin HCL
    Dosage: unk

Cyproheptadine HCL
    Dosage: unk

Dihydroergotamine Mesylate
    Dosage: unk

Doxycycline Monohydrate
    Dosage: unk

Frova
    Dosage: unk

Keflex
    Dosage: unk

Ketorolac Tromethamine
    Dosage: unk

Lidocaine Hydrochloride
    Dosage: unk

Lovenox
    Dosage: unk

Lyrica
    Dosage: unk

Naproxen
    Dosage: unk

Prochlorperazine
    Dosage: unk

Reglan
    Dosage: unk

Scopolamine
    Dosage: unk

Skelaxin
    Dosage: unk

Talwin
    Dosage: unk

Tramadol HCL
    Dosage: unk

Valium
    Dosage: unk

Zomig
    Dosage: unk



Possible Keflex side effects in male

Reported by a physician from United States on 2012-06-21

Patient: male

Reactions: Drug Hypersensitivity

Drug(s) suspected as cause:
Bactrim
    Dosage: unk

Codeine Sulfate
    Dosage: unk

Keflex
    Dosage: unk

PEN-VEE K
    Dosage: unk

Potassium Penicillin G
    Dosage: unk



Possible Keflex side effects in male

Reported by a physician from United States on 2012-06-19

Patient: male

Reactions: Drug Hypersensitivity

Drug(s) suspected as cause:
Ambien
    Dosage: unk

Keflex
    Dosage: unk

Septra
    Dosage: unk

Vicodin
    Dosage: unk

Vioxx
    Dosage: unk

Wellbutrin
    Dosage: unk



Possible Keflex side effects in 50 year old female

Reported by a consumer/non-health professional from United States on 2012-06-14

Patient: 50 year old female, weighing 61.2 kg (134.7 pounds)

Reactions: Abdominal Pain, Spinal Pain, Vomiting, Nausea, Headache, Burning Sensation, Arthralgia, Diarrhoea, Neck Pain, Feeling Abnormal, Pain in JAW

Drug(s) suspected as cause:
Keflex



Possible Keflex side effects in female

Reported by a consumer/non-health professional from United States on 2012-06-14

Patient: female

Reactions: Drug Hypersensitivity

Drug(s) suspected as cause:
Keflex
    Dosage: unk

Lyrica
    Dosage: unk

Potassium Penicillin G
    Dosage: unk



Possible Keflex side effects in

Reported by a consumer/non-health professional from United States on 2012-06-14

Patient:

Reactions: Drug Hypersensitivity

Drug(s) suspected as cause:
Keflex
    Dosage: unk

Potassium Penicillin G
    Dosage: unk



Possible Keflex side effects in male

Reported by a physician from United States on 2012-06-08

Patient: male

Reactions: Drug Hypersensitivity

Drug(s) suspected as cause:
Allegra-D 12 Hour
    Dosage: unk

Ceclor
    Dosage: unk

Erythromycin
    Dosage: unk

Keflex
    Dosage: unk

Levaquin
    Dosage: unk

Penicillin G Potassium
    Dosage: unk

Septra DS
    Dosage: unk

Toradol
    Dosage: unk



Possible Keflex side effects in male

Reported by a physician from United States on 2012-06-06

Patient: male

Reactions: Bedridden, Product Substitution Issue, Product Quality Issue, Adverse Drug Reaction, Drug Hypersensitivity, Inadequate Analgesia, Intentional Drug Misuse, Joint Injury, Cardiac Disorder, Tremor, Staphylococcal Infection, Arthralgia, Viral Pericarditis, Unevaluable Event, Withdrawal Syndrome, Neuralgia

Adverse event resulted in: hospitalization

Drug(s) suspected as cause:
Cephalexin
    Indication: Product Used FOR Unknown Indication

Duragesic-100

Duragesic-100

Duragesic-100

Duragesic-100

Duragesic-100

Duragesic-100
    Indication: Nerve Injury

Duragesic-100

Duragesic-100

Duragesic-100
    Indication: Pain in Extremity

Duragesic-100

Duragesic-100

Keflex
    Administration route: Oral
    Indication: Product Used FOR Unknown Indication
    Start date: 2008-01-01
    End date: 2008-01-01

Other drugs received by patient: Simavastatin; Furosemide; Celebrex; Cymbalta; Warfarin Sodium; Metformin HCL; Lasix; Prevacid; Diltiazem; Unknown Medication; Topamax; Cartia XT; Baclofen; Topamax; Hydrocodone; Singulair; Glucosamine Sulfate; Lisinopril



Possible Keflex side effects in female

Reported by a consumer/non-health professional from United States on 2012-05-29

Patient: female, weighing 65.8 kg (144.7 pounds)

Reactions: Weight Decreased, Cellulitis, Nausea, Laceration, Headache, Fibromyalgia, Oral Candidiasis, Impaired Healing, Basal Cell Carcinoma, Dizziness, Feeling Abnormal, Cough, Decreased Appetite, Infection

Drug(s) suspected as cause:
Keflex
    Indication: Infection
    Start date: 2012-04-11

Remicade
    Indication: Rheumatoid Arthritis
    Start date: 2007-01-01
    End date: 2012-02-01

Other drugs received by patient: Methotrexate



Possible Keflex side effects in female

Reported by a consumer/non-health professional from United States on 2012-05-25

Patient: female

Reactions: Drug Hypersensitivity

Drug(s) suspected as cause:
Ceclor
    Dosage: unk

Keflex
    Dosage: unk

Morphine Sulfate
    Dosage: unk

Potassium Penicillin G
    Dosage: unk



Possible Keflex side effects in female

Reported by a consumer/non-health professional from United States on 2012-05-24

Patient: female

Reactions: Drug Hypersensitivity

Drug(s) suspected as cause:
Bactrim
    Dosage: unk

Codeine Sulfate
    Dosage: unk

Ibuprofen
    Dosage: unk

Keflex
    Dosage: unk

Lipitor
    Dosage: unk

Ultram
    Dosage: unk

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