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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.

Potassium Channel Antagonists [MoA] — Common Side Effects

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Side Effect Total Reports Drugs Deaths Hosp. Life-Threat.
Gait disturbance 8,902 3 40 851 20
Drug ineffective 7,186 4 31 412 23
Fall 5,824 4 66 1,647 14
Therapy cessation 4,590 2 28 597 8
Fatigue 3,956 3 39 486 10
Balance disorder 3,827 3 10 393 7
Condition aggravated 3,440 3 55 480 35
Multiple sclerosis relapse 3,322 1 29 1,234 15
Dizziness 3,124 4 6 291 9
Urinary tract infection 2,823 3 48 958 12
Asthenia 2,714 3 61 695 16
Insomnia 2,625 3 18 194 6
Mobility decreased 2,537 2 15 270 4
Headache 2,420 3 13 247 9
Multiple sclerosis 2,224 1 89 537 11
Nausea 2,184 3 25 292 4
Muscular weakness 2,083 3 26 439 8
Memory impairment 1,835 2 20 225 2
Drug dose omission 1,729 1 0 173 2
Flushing 1,605 1 3 138 3
Pain 1,587 3 21 290 9
Malaise 1,549 4 19 270 5
Paraesthesia 1,525 3 19 176 6
Hypoaesthesia 1,509 2 16 249 6
Back pain 1,448 3 17 243 7
Depression 1,416 2 17 219 6
Pain in extremity 1,381 3 12 240 6
Diarrhoea 1,362 4 23 292 22
Inappropriate schedule of drug administration 1,331 1 4 119 1
Therapeutic response unexpected 1,273 2 6 131 0
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