Having an irregular heartbeat (which would be of concern if it was rapid heartbeat as well) is a serious side effect of triamterene. Please see your doctor as soon as possible.
Other side effects of Triamterene are stated below:
Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Triamterene:
Diarrhea; headache; loss of appetite; nausea; weakness.
Seek medical attention right away if any of these SEVERE side effects occur when using Triamterene:
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); dry mouth; excessive thirst; slow or irregular heart rate; unusual muscle weakness; unusual tiredness; vomiting; yellowing of the skin or eyes.
- Triamterene Information for Consumers
- Triamterene Information for Healthcare Professionals (includes dosage details)
- Side Effects of Triamterene (detailed)
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