What is Quinidine?

Category: Prescription Drugs


Quinidine is an anti-arrhythmic drug used to prevent atrial fibrillation/flutter and ventricular arrhythmias. The use of quinidine has largely been replaced by more effective and safer antiarrhythmic agents and procedures, such as radioablation. It is also used in severe cases of malaria.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Myotonia congenita 1 0
Pain in leg(s) 1 1
Support heart health 1 0
Ventricular tachycardia 1 1
Weakness in leg(s) 1 1

  • Major
  • Moderate
  • Slight
  • None
  • Can't tell

Side effects

Side effects as an overall problem

Side effects as an overall problem
Severity Evaluations
Severe 0
Moderate 1
Mild 0
None 1

Commonly reported side effects and conditions associated with Quinidine

Side effect Patients
Decreased appetite 1


Based on patients currently taking Quinidine

Dosage Patients
200 mg daily 1

Why patients stopped taking Quinidine

Multiple reasons could be selected

Reason Patients
Change in health plan coverage 1
Course of treatment ended 1
Doctor's advice 1
See all 3 patients who've stopped taking Quinidine


Currently taking Quinidine

Duration Patients
10 years or more 1

Stopped taking Quinidine

Duration Patients
2 - 5 years 1
10 years or more 2
Adherence Evaluations
Always 1
Usually 1
Sometimes 0
Never taken as prescribed 0
Burden Evaluations
Very hard to take 1
Somewhat hard to take 0
A little hard to take 1
Not at all hard to take 0
Cost per month
Cost per month Evaluations
$200+ 0
$100-199 0
$50-99 1
$25-49 0
< $25 1
Not specified 0

What people switch to and from

Patients stopped taking Quinidine and switched to:

Treatment Patients
Baclofen (Mylan-Baclofen) 1
Gabapentin (Neurontin) 1
Phenytoin (Dilantin) 1
Last updated:
There are no evaluations for Quinidine.