See also Warning section.
Before taking this product, tell your doctor or pharmacist if you are allergic to amiloride or hydrochlorothiazide; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using Moduretic (Amiloride/HCTZ) 5/50mg, tell your doctor or pharmacist your medical history, especially of: untreated salt/mineral imbalance (such as high potassium, low sodium level), kidney disease, liver disease, diabetes, loss of too much body water (dehydration), lupus, gout, high levels of fats in the blood (cholesterol/triglycerides).
Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
Moduretic (Amiloride/HCTZ) 5/50mg may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic beverages.
To reduce the risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position. Significant loss of body water from too much sweating, vomiting, or diarrhea can also lower your blood pressure and worsen dizziness. Drink plenty of fluids to prevent these effects and dehydration. If you are on restricted fluid intake, consult your doctor for further instructions. Contact your doctor if you are unable to drink fluids or if you have persistent diarrhea/vomiting.
Moduretic (Amiloride/HCTZ) 5/50mg may make you more sensitive to the sun. Avoid prolonged sun exposure, tanning booths, and sunlamps. Use a sunscreen and wear protective clothing when outdoors.
If you have diabetes, this product may make it harder to control your blood sugar levels. Check your blood sugar levels regularly as directed by your doctor. Tell your doctor immediately if you have symptoms of high blood sugar such as increased thirst and urination. Your anti-diabetic medication or diet may need to be adjusted.
This product may affect the potassium levels in your blood. Before using potassium supplements or salt substitutes that contain potassium, consult your doctor or pharmacist.
During pregnancy, Moduretic (Amiloride/HCTZ) 5/50mg should be used only when clearly needed. Discuss the risks and benefits with your doctor.
Hydrochlorothiazide passes into breast milk. It is unknown if amiloride passes into breast milk. Discuss the risks and benefits with your doctor before breast-feeding.
Store at room temperature between 59-86 degrees F (15-30 degrees C) away from light and moisture. Do not store in the bathroom. Keep all medicines away from children and pets.
Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company for more details about how to safely discard your product.
This product is used to treat high blood pressure (hypertension), heart failure, or extra fluid in the body (edema). Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems.
This product contains two medications: amiloride and hydrochlorothiazide. Both medications are "water pills" (diuretics) and cause your body to get rid of extra salt and water. This effect may increase the amount of urine you make when you first start the product. Amiloride also helps to treat or prevent low blood potassium levels.
Take Moduretic (Amiloride/HCTZ) 5/50mg by mouth with food, usually once or twice daily or as directed by your doctor.
If you take Moduretic (Amiloride/HCTZ) 5/50mg too close to bedtime, you may need to wake up to urinate. Therefore, it is best to take Moduretic (Amiloride/HCTZ) 5/50mg at least 4 hours before your bedtime. If you have any questions about how and when to take Moduretic (Amiloride/HCTZ) 5/50mg, ask your doctor or pharmacist.
The dosage is based on your medical condition and response to treatment.
Use Moduretic (Amiloride/HCTZ) 5/50mg regularly in order to get the most benefit from it. To help you remember, take it at the same time(s) each day. It is important to continue taking Moduretic (Amiloride/HCTZ) 5/50mg even if you feel well. Most people with high blood pressure do not feel sick.
If you also take certain drugs to lower your cholesterol (bile acid-binding resins such as cholestyramine or colestipol), take this product at least 4 hours before or at least 4 to 6 hours after these medications.
Tell your doctor if your condition does not improve or if it worsens (such as your blood pressure readings remain high or increase).
See also Warning section.
Headache, dizziness, nausea, vomiting, loss of appetite, stomach/abdominal pain, gas, or diarrhea may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
Remember that your doctor has prescribed Moduretic (Amiloride/HCTZ) 5/50mg because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using Moduretic (Amiloride/HCTZ) 5/50mg do not have serious side effects.
This product may cause a loss of too much body water (dehydration) and salt/minerals. Tell your doctor immediately if you have any of these unlikely but serious symptoms of dehydration or mineral loss: very dry mouth, extreme thirst, muscle cramps, weakness, fast heartbeat, severe dizziness, confusion, unusual decrease in the amount of urine, fainting, seizures.
Tell your doctor immediately if this unlikely but serious side effect occurs: joint pain.
Tell your doctor immediately if any of these rare but serious side effects occur: yellowing eyes/skin, dark urine, persistent nausea/vomiting, unusual change in the amount of urine (not including the normal increase in urine when you first start Moduretic (Amiloride/HCTZ) 5/50mg), decrease in vision, eye pain.
A very serious allergic reaction to Moduretic (Amiloride/HCTZ) 5/50mg is rare. However, seek immediate medical attention if you notice any of the following symptoms of a serious allergic reaction: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Click here to view a more detailed list of Moduretic side effects.
If you miss a dose of Moduretic (Amiloride/HCTZ) 5/50mg, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.
See also How To Use and Precautions section.
The effects of some drugs can change if you take other drugs or herbal products at the same time. This can increase your risk for serious side effects or may cause your medications not to work correctly. These drug interactions are possible, but do not always occur. Your doctor or pharmacist can often prevent or manage interactions by changing how you use your medications or by close monitoring.
To help your doctor and pharmacist give you the best care, be sure to tell your doctor and pharmacist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products) before starting treatment with this product. While using this product, do not start, stop, or change the dosage of any other medicines you are using without your doctor's approval.
Some products that may interact with Moduretic (Amiloride/HCTZ) 5/50mg include: cisapride, dofetilide, lithium, sodium phosphate products, other products that may affect potassium levels (such as eplerenone, tacrolimus, cyclosporine, birth control pills containing drospirenone, other diuretics like spironolactone/triamterene, ACE inhibitors like benazepril/captopril, angiotensin receptor antagonists like losartan/valsartan).
Check the labels on all your medicines (such as cough-and-cold products, diet aids, nonsteroidal anti-inflammatory drugs-NSAIDs for pain/fever reduction) because they may contain ingredients that could increase your blood pressure (such as pseudoephedrine, phenylephrine) or reduce the effect of Moduretic (Amiloride/HCTZ) 5/50mg (such as ibuprofen, naproxen). Ask your pharmacist about using those products safely.
Moduretic (Amiloride/HCTZ) 5/50mg may interfere with certain laboratory tests (including glucose tolerance testing, parathyroid test, protein-bound iodide test), possibly causing false test results. Make sure laboratory personnel and all your doctors know you use Moduretic (Amiloride/HCTZ) 5/50mg.
This document does not contain all possible drug interactions. Keep a list of all the products you use. Share this list with your doctor and pharmacist to lessen your risk for serious medication problems.