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Important: This site presents data from the FDA Adverse Event Reporting System (FAERS). A report does not mean the drug caused the event. Full disclaimer.

Toxic encephalopathy: Which Medications Cause It? (3,761 Reports Across 256 Drugs)

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Toxic encephalopathy has been reported as an adverse event with 256 different drugs in the FDA's FAERS database, with 3,761 total reports. 327 of these reports resulted in death.The drugs most commonly associated with Toxic encephalopathy are METRONIDAZOLE, VALACYCLOVIR, and BACLOFEN.

3,761
Total Reports
256
Drugs Involved
327
Deaths
2,556
Hospitalizations
55.2 yrs
Average Patient Age
52.0% / 48.0%
Female / Male

Which Drugs Cause Toxic encephalopathy Most Often?

Drug Reports % of Drug Reports Deaths Hosp. Life-Threat.
METRONIDAZOLE 548 2.4% 49 315 32
VALACYCLOVIR 384 2.9% 20 292 30
BACLOFEN 182 0.7% 1 136 22
ACYCLOVIR 168 1.2% 5 114 14
METHOTREXATE 142 0.1% 17 73 15
METFORMIN 137 0.2% 0 111 6
VALPROIC ACID 124 0.6% 1 81 13
TACROLIMUS 118 0.1% 11 58 10
IFOSFAMIDE 116 0.7% 14 56 6
DIAZEPAM 91 0.2% 1 82 20
PREGABALIN 88 0.1% 4 72 17
LEVETIRACETAM 87 0.1% 0 38 4
QUETIAPINE 86 0.1% 1 71 7
CLONAZEPAM 83 0.2% 0 72 9
CEFEPIME 82 1.5% 22 49 7
MIDAZOLAM 66 0.6% 12 49 0
ACETAMINOPHEN 64 0.1% 5 51 24
FLUOROURACIL 64 0.1% 8 27 18
DOXORUBICIN 61 0.1% 4 39 7
FENTANYL 61 0.1% 3 55 4

View all 256 drugs →

Top 3 Drugs Associated With Toxic encephalopathy

548 reports
384 reports
182 reports

Related Side Effects

Drug ineffective (1,049,718) Off label use (762,782) Death (660,423) Fatigue (599,248) Nausea (562,301) Diarrhoea (491,550) Pain (471,975) Headache (460,069) Dyspnoea (409,496) Dizziness (352,922)