propafenone, Rythmol, Rythmol SR (cont.)
Omudhome Ogbru, PharmD
Omudhome Ogbru, PharmD
Dr. Ogbru received his Doctorate in Pharmacy from the University of the Pacific School of Pharmacy in 1995. He completed a Pharmacy Practice Residency at the University of Arizona/University Medical Center in 1996. He was a Professor of Pharmacy Practice and a Regional Clerkship Coordinator for the University of the Pacific School of Pharmacy from 1996-99.
Medical and Pharmacy Editor:
SIDE EFFECTS: Common side effects of propafenone are:
Other important side effects include:
Because of its beta blocking activity, propafenone must be used with caution in patients with weak heart muscle (congestive heart failure), slow heart rate, any form of heart electrical conduction block, low blood pressure, or asthma. The most serious side effect of propafenone is the causing of serious life- threatening irregular heart rhythms (ventricular arrhythmias or pro-arrhythmia) or heart block. It is for this reason that propafenone is started and doses increased while patients are hospitalized in a monitored setting.
GENERIC AVAILABLE: Yes
PREPARATIONS: Tablets: 150, 225, and 300 mg. Capsules (extended Release): 225, 325, and 425 mg
STORAGE: Tablets should be stored at room temperature 15 C to 30 C (59 F to 86 F) in a tightly closed, light-resistant container.
DOSING: The initial dose is 150 mg every 8 hours of immediate release tablets. The dose may be increased at 3 to 4 day intervals to 225 mg every 8 hours and, if needed, to 300 mg every 8 hours.
When using extended release capsules the initial dose is 225 mg every 12 hours. The dose may be increased at minimum 5 day intervals to 325 every 12 hours and if necessary to 425 mg every 12 hours. The dose should be reduced in patients with liver failure. Propafenone is given with or without food.
Medically Reviewed by a Doctor on 4/2/2015
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
Need help identifying pills and medications?
Back to Medications Index
- Allergic Skin Disorders
- Bacterial Skin Diseases
- Bites and Infestations
- Diseases of Pigment
- Fungal Skin Diseases
- Medical Anatomy and Illustrations
- Noncancerous, Precancerous & Cancerous Tumors
- Oral Health Conditions
- Papules, Scales, Plaques and Eruptions
- Scalp, Hair and Nails
- Sexually Transmitted Diseases (STDs)
- Vascular, Lymphatic and Systemic Conditions
- Viral Skin Diseases
- Additional Skin Conditions