Generic Name: Triamterene

  • What is Dyrenium?

    Dyrenium is a diuretic (water pill) used to treat edema (swelling) caused by congestive heart failure. Dyrenium can also be used to treat other conditions, as determined by your doctor.

  • What is the most important information I should know about Dyrenium?

    Dyrenium can cause high blood potassium levels. This effect may be greater in people with diabetes or kidney problems, the elderly, or severely ill. Your doctor will monitor you for increased blood potassium levels.

  • Who should not take Dyrenium?

    Do not use Dyrenium if you have severe kidney or liver disease, high blood potassium levels, are unable to urinate, are taking potassium supplements, spironolactone, amiloride, or other medications that contain triamterene. Do not use Dyrenium if you are allergic to it or any of its ingredients.

  • What should I tell my doctor before I take the first dose of Dyrenium?

    Tell your doctor about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with Dyrenium. Also, talk to your doctor about your complete medical history, especially if you have diabetes, high blood potassium levels, kidney or liver problems.

  • What is the usual dosage?

    The information below is based on the dosage guidelines your doctor uses. Depending on your condition and medical history, your doctor may prescribe a different regimen. Do not change the dosage or stop taking your medication without your doctor's approval.

    Adults: If used alone, the usual starting dose is 100 milligrams (mg) twice a day after meals. Your doctor will adjust your dose based on your condition and needs. If used with another water pill or high blood pressure medication, the total daily dose of each medication is usually lowered initially, as determined by your doctor.

  • How should I take Dyrenium?

    Take Dyrenium as prescribed by your doctor. To minimize stomach upset, you can take this medication after you eat.

  • What should I avoid while taking Dyrenium?

    Do not take other medications that can increase your potassium levels, such as spironolactone.

  • What are possible food and drug interactions associated with Dyrenium?

    If Dyrenium is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining Dyrenium with the following: blood pressure/heart medications in a class called angiotensin-converting enzyme (ACE) inhibitors (such as lisinopril); lithium; nonsteroidal anti-inflammatory drugs (NSAIDs) (such as indomethacin); other potassium-sparing diuretics (such as spironolactone); or potassium-containing medications (such as penicillin G potassium).

  • What are the possible side effects of Dyrenium?

    Side effects cannot be anticipated. If any develop or change in intensity, tell your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking this drug.

    Side effects may include: allergic reactions, changes in blood potassium levels, diarrhea, dizziness, dry mouth, headache, kidney or liver problems, nausea, tiredness, vomiting, weakness

  • Can I receive Dyrenium if I am pregnant or breastfeeding?

    The effects of Dyrenium during pregnancy and breastfeeding are unknown. Tell your doctor immediately if you are pregnant, plan to become pregnant, or are breastfeeding.

  • What should I do if I miss a dose of Dyrenium?

    If you miss a dose of Dyrenium, take it as soon as you remember. However, if it is almost time for your next dose, skip the one you missed and return to your regular dosing schedule. Do not take two doses at once.

  • How should I store Dyrenium?

    Store at room temperature.