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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.

Paradoxical drug reaction: Which Medications Cause It? (2,817 Reports Across 233 Drugs)

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Paradoxical drug reaction has been reported as an adverse event with 233 different drugs in the FDA's FAERS database, with 2,817 total reports. 112 of these reports resulted in death.The drugs most commonly associated with Paradoxical drug reaction are RIFAMPIN, ISONIAZID, and ETHAMBUTOL.

2,817
Total Reports
233
Drugs Involved
112
Deaths
886
Hospitalizations
41.9 yrs
Average Patient Age
52.8% / 47.2%
Female / Male

Which Drugs Cause Paradoxical drug reaction Most Often?

Drug Reports % of Drug Reports Deaths Hosp. Life-Threat.
RIFAMPIN 570 4.3% 23 226 6
ISONIAZID 433 5.7% 23 212 7
ETHAMBUTOL 407 5.4% 24 201 6
PYRAZINAMIDE 407 7.4% 23 196 5
LEVETIRACETAM 245 0.4% 0 20 8
PREDNISONE 188 0.1% 11 65 4
ADALIMUMAB 177 0.0% 5 74 0
DEXAMETHASONE 110 0.1% 5 61 4
GABAPENTIN 110 0.2% 0 9 0
INFLIXIMAB 108 0.1% 2 34 0
QUETIAPINE 107 0.2% 35 56 3
OLANZAPINE 103 0.2% 20 56 1
ARIPIPRAZOLE 102 0.2% 28 18 0
CLARITHROMYCIN 98 0.5% 1 20 1
MOXIFLOXACIN 89 0.6% 1 44 1
LORAZEPAM 88 0.3% 15 48 2
VENLAFAXINE 83 0.2% 0 13 2
CLONIDINE 82 0.7% 0 20 1
LAMOTRIGINE 79 0.2% 0 11 1
TRAZODONE 79 0.4% 0 8 0

View all 233 drugs →

Top 3 Drugs Associated With Paradoxical drug reaction

570 reports
433 reports
407 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)