Drug
Albendazole
Important: Reactions below are the flagged terms from this drug’s
FAERS report history (min. 3 co-reports per term) — PRR/ROR indicate
disproportionality in spontaneous reporting, not causation.
Data from FDA FAERS via openFDA. Last recalculated: 2026-09-14.
| Reaction | Co-reports (a) | PRR | ROR | Signal | |
|---|---|---|---|---|---|
| 1 | Impaired Quality Of Life | 132 | 102.9 | 110.6 | signal |
| 2 | Tubulointerstitial Nephritis | 132 | 78.9 | 84.8 | signal |
| 3 | Impaired Work Ability | 141 | 73.6 | 79.4 | signal |
| 4 | Frequent Bowel Movements | 153 | 63.6 | 69.1 | signal |
| 5 | Swollen Tongue | 131 | 46.8 | 50.2 | signal |
| 6 | Systemic Lupus Erythematosus | 135 | 42.6 | 45.8 | signal |
| 7 | Nightmare | 132 | 42.4 | 45.5 | signal |
| 8 | Accidental Overdose | 134 | 40.9 | 44.0 | signal |
| 9 | Rectal Haemorrhage | 157 | 40.6 | 44.2 | signal |
| 10 | Colitis Ulcerative | 157 | 39.3 | 42.7 | signal |
| 11 | Loss Of Personal Independence In Daily Activities | 147 | 34.5 | 37.3 | signal |
| 12 | Haematochezia | 164 | 33.2 | 36.2 | signal |
| 13 | Tinnitus | 135 | 32.7 | 35.2 | signal |
| 14 | Medication Error | 151 | 30.3 | 32.9 | signal |
| 15 | Eczema | 134 | 29.7 | 31.9 | signal |
| 16 | Vertigo | 150 | 27.4 | 29.7 | signal |
| 17 | Deep Vein Thrombosis | 154 | 26.3 | 28.5 | signal |
| 18 | Stress | 155 | 24.0 | 26.1 | signal |
| 19 | Dysgeusia | 134 | 20.0 | 21.4 | signal |
| 20 | Intentional Product Use Issue | 154 | 19.5 | 21.1 | signal |
| 21 | Arthritis | 137 | 19.4 | 20.8 | signal |
| 22 | Adverse Drug Reaction | 133 | 16.6 | 17.7 | signal |
| 23 | Toxic Epidermal Necrolysis | 22 | 16.2 | 16.4 | signal |
| 24 | Gastroenteritis | 21 | 16.0 | 16.2 | signal |
| 25 | Migraine | 135 | 15.8 | 17.0 | signal |
| 26 | Pulmonary Embolism | 133 | 15.5 | 16.6 | signal |
| 27 | Transaminases Increased | 30 | 15.0 | 15.3 | signal |
| 28 | Palpitations | 147 | 14.0 | 15.1 | signal |
| 29 | Septic Shock | 53 | 13.6 | 14.0 | signal |
| 30 | Stevens-johnson Syndrome | 27 | 13.5 | 13.7 | signal |
| 31 | Encephalopathy | 29 | 13.2 | 13.4 | signal |
| 32 | Gastritis | 31 | 13.1 | 13.3 | signal |
| 33 | Drug Ineffective For Unapproved Indication | 63 | 12.6 | 13.0 | signal |
| 34 | Deformity | 10 | 11.9 | 11.9 | signal |
| 35 | Abortion Induced | 10 | 11.8 | 11.9 | signal |
| 36 | Generalised Oedema | 13 | 11.7 | 11.8 | signal |
| 37 | Eosinophilia | 18 | 11.5 | 11.6 | signal |
| 38 | Brain Oedema | 13 | 11.5 | 11.5 | signal |
| 39 | Emphysema | 10 | 11.0 | 11.0 | signal |
| 40 | Product Use In Unapproved Indication | 234 | 10.7 | 12.0 | signal |
| 41 | Skin Laceration | 10 | 10.3 | 10.4 | signal |
| 42 | Confusional State | 149 | 10.2 | 11.0 | signal |
| 43 | Abdominal Discomfort | 151 | 10.1 | 10.8 | signal |
| 44 | Foot Deformity | 10 | 10.0 | 10.1 | signal |
| 45 | Hepatic Cytolysis | 11 | 10.0 | 10.1 | signal |
| 46 | Blood Bilirubin Increased | 24 | 9.9 | 10.0 | signal |
| 47 | Inappropriate Schedule Of Product Administration | 156 | 9.8 | 10.6 | signal |
| 48 | Somnolence | 167 | 9.2 | 10.0 | signal |
| 49 | Pneumothorax | 13 | 9.1 | 9.2 | signal |
| 50 | Cerebrovascular Accident | 137 | 9.0 | 9.6 | signal |
| 51 | Helicobacter Infection | 8 | 8.7 | 8.8 | signal |
| 52 | Covid-19 | 138 | 8.7 | 9.3 | signal |
| 53 | Bacteraemia | 9 | 8.5 | 8.5 | signal |
| 54 | Joint Range Of Motion Decreased | 10 | 8.3 | 8.4 | signal |
| 55 | Jaundice | 20 | 8.2 | 8.3 | signal |
| 56 | Condition Aggravated | 223 | 8.2 | 9.2 | signal |
| 57 | Cholestasis | 14 | 8.2 | 8.2 | signal |
| 58 | Cytomegalovirus Infection | 12 | 8.0 | 8.1 | signal |
| 59 | Drug-induced Liver Injury | 22 | 7.9 | 8.0 | signal |
| 60 | Pyrexia | 243 | 7.8 | 8.8 | signal |
| 61 | Oral Candidiasis | 9 | 7.7 | 7.7 | signal |
| 62 | Exposure During Pregnancy | 43 | 7.7 | 7.8 | signal |
| 63 | Premature Delivery | 11 | 7.6 | 7.7 | signal |
| 64 | Abasia | 17 | 7.5 | 7.6 | signal |
| 65 | Hepatotoxicity | 15 | 7.5 | 7.6 | signal |
| 66 | Therapy Non-responder | 30 | 7.5 | 7.6 | signal |
| 67 | Abortion Spontaneous | 27 | 7.5 | 7.6 | signal |
| 68 | Acute Hepatic Failure | 9 | 7.4 | 7.4 | signal |
| 69 | Pancytopenia | 36 | 7.2 | 7.3 | signal |
| 70 | Depression | 145 | 7.1 | 7.6 | signal |
| 71 | Hepatocellular Injury | 9 | 7.0 | 7.1 | signal |
| 72 | Weight Decreased | 174 | 6.9 | 7.5 | signal |
| 73 | Spinal Fracture | 12 | 6.7 | 6.7 | signal |
| 74 | Eyelid Oedema | 7 | 6.7 | 6.7 | signal |
| 75 | Agranulocytosis | 11 | 6.6 | 6.7 | signal |
| 76 | Product Taste Abnormal | 8 | 6.6 | 6.6 | signal |
| 77 | Neutrophil Count Increased | 6 | 6.5 | 6.5 | signal |
| 78 | Sedation | 15 | 6.4 | 6.4 | signal |
| 79 | Coma | 27 | 6.3 | 6.4 | signal |
| 80 | Cyst | 7 | 6.3 | 6.3 | signal |
| 81 | Drug Level Increased | 9 | 6.0 | 6.1 | signal |
| 82 | Dermatitis | 11 | 5.9 | 5.9 | signal |
| 83 | Drug Exposure During Pregnancy | 18 | 5.8 | 5.8 | signal |
| 84 | Neurotoxicity | 9 | 5.8 | 5.8 | signal |
| 85 | Acute Respiratory Distress Syndrome | 9 | 5.7 | 5.7 | signal |
| 86 | Inability To Afford Medication | 5 | 5.7 | 5.7 | signal |
| 87 | Pain In Extremity | 144 | 5.4 | 5.8 | signal |
| 88 | Hyperbilirubinaemia | 5 | 5.4 | 5.4 | signal |
| 89 | Skin Lesion | 13 | 5.3 | 5.3 | signal |
| 90 | Poisoning | 6 | 5.3 | 5.3 | signal |
| 91 | Platelet Count Increased | 6 | 5.1 | 5.1 | signal |
| 92 | Pruritus Generalised | 10 | 5.1 | 5.1 | signal |
| 93 | Cyanosis | 7 | 4.9 | 5.0 | signal |
| 94 | Renal Failure Acute | 19 | 4.9 | 4.9 | signal |
| 95 | Abscess | 7 | 4.9 | 4.9 | signal |
| 96 | Depressed Level Of Consciousness | 17 | 4.8 | 4.8 | signal |
| 97 | Grand Mal Convulsion | 4 | 4.7 | 4.8 | signal |
| 98 | Gamma-glutamyltransferase Increased | 9 | 4.5 | 4.5 | signal |
| 99 | Leukopenia | 20 | 4.5 | 4.5 | signal |
| 100 | Hypotonia | 4 | 4.4 | 4.4 | signal |
| 101 | Chromaturia | 9 | 4.4 | 4.4 | signal |
| 102 | Eye Discharge | 4 | 4.4 | 4.4 | signal |
| 103 | Bone Marrow Failure | 8 | 4.3 | 4.4 | signal |
| 104 | Tuberculosis | 5 | 4.3 | 4.3 | signal |
| 105 | Anorexia | 5 | 4.3 | 4.3 | signal |
| 106 | Disease Recurrence | 18 | 4.2 | 4.2 | signal |
| 107 | Convulsion | 21 | 4.0 | 4.1 | signal |
| 108 | Dystonia | 7 | 4.0 | 4.0 | signal |
| 109 | Gastric Haemorrhage | 4 | 3.8 | 3.8 | signal |
| 110 | Haematotoxicity | 3 | 3.6 | 3.6 | no signal |
| 111 | Inappropriate Antidiuretic Hormone Secretion | 3 | 3.3 | 3.3 | no signal |
| 112 | Drug Level Decreased | 3 | 3.3 | 3.3 | no signal |
| 113 | Blindness Unilateral | 4 | 3.2 | 3.2 | no signal |
| 114 | Osteonecrosis | 9 | 3.0 | 3.0 | signal |
| 115 | Premature Baby | 8 | 2.9 | 3.0 | signal |
| 116 | Foetal Exposure During Pregnancy | 18 | 2.5 | 2.5 | signal |
| 117 | Palmar-plantar Erythrodysaesthesia Syndrome | 5 | 2.4 | 2.4 | no signal |
| 118 | Pregnancy | 4 | 2.2 | 2.2 | no signal |
| 119 | Tooth Loss | 4 | 2.1 | 2.1 | no signal |
| 120 | Incorrect Drug Administration Duration | 3 | 1.2 | 1.2 | no signal |
| 121 | Myelosuppression | 3 | 1.0 | 1.0 | no signal |