How should you use this medication?
Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. Take your medicine at regular intervals. Do not take it more often than directed. Take all of your medicine as directed even if you think you are better. Do not skip doses or stop your medicine early. Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for children as young as 2 months for selected conditions, precautions do apply.
What are the possible side effects of this medicine?
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions (skin rash, itching or hives; swelling of the face, lips, or tongue)
bloody or watery diarrhea
heartbeat rhythm changes (trouble breathing; chest pain; dizziness; fast, irregular heartbeat; feeling faint or lightheaded, falls,)
high potassium levels (chest pain; fast, irregular heartbeat; muscle weakness)
kidney injury (trouble passing urine or change in the amount of urine)
liver injury (dark yellow or brown urine; general ill feeling or flu-like symptoms; loss of appetite, right upper belly pain; unusually weak or tired, yellowing of the eyes or skin)
low blood pressure (dizziness; feeling faint or lightheaded, falls; unusually weak or tired)
low blood sugar (feeling anxious; confusion; dizziness; increased hunger; unusually weak or tired; increased sweating; shakiness; cold, clammy skin; irritable; headache; blurred vision; fast heartbeat; loss of consciousness)
low red blood cell counts (trouble breathing; feeling faint; lightheaded, falls; unusually weak or tired)
rash, fever, and swollen lymph nodes
redness, blistering, peeling, or loosening of the skin, including inside the mouth
unusual bruising or bleeding Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
lack or loss of appetite
What may interact with this medicine?
Our pharmacists will check to see if this medication will cause any interactions with the information in your profile.
Do not take this medicine with any of the following medications:
dofetilide This medicine may also interact with the following medications:
birth control pills
certain medicines for blood pressure, heart disease
certain medicines for depression, like amitriptyline
certain medicines for diabetes, like glipizide or glyburide
certain medicines that treat or prevent blood clots like warfarin