Description and Brand Names

Drug information provided by: Micromedex

US Brand Name

  1. Midamor

Descriptions


Amiloride is used in combination with other medicines to treat high blood pressure (hypertension). High blood pressure adds to the workload of the heart and arteries. If it continues for a long time, the heart and arteries may not function properly. This can damage the blood vessels of the brain, heart, and kidneys, resulting in a stroke, heart failure, or kidney failure. High blood pressure may also increase the risk of heart attacks. These problems may be less likely to occur if blood pressure is controlled .

Amiloride is also used to treat water retention (edema) in patients with congestive heart failure .

Amiloride is a type of diuretic (water pill) that helps prevent your body from losing too much potassium. It reduces the amount of water in the body by increasing the flow of urine, which helps lower the blood pressure .

This medicine is available only with your doctor's prescription .

This product is available in the following dosage forms:

  • Tablet

Before Using

In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:

Allergies

Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

Pediatric

Appropriate studies have not been performed on the relationship of age to the effects of amiloride in the pediatric population. Safety and efficacy have not been established .

Geriatric

Appropriate studies performed to date have not demonstrated geriatrics-specific problems that would limit the usefulness of amiloride in the elderly. However, elderly patients are more likely to have age-related liver, kidney, or heart problems, which may require an adjustment in the dose for patients receiving amiloride .

Pregnancy

Information about this amiloride-oral-route
Pregnancy Category Explanation
All Trimesters B Animal studies have revealed no evidence of harm to the fetus, however, there are no adequate studies in pregnant women OR animal studies have shown an adverse effect, but adequate studies in pregnant women have failed to demonstrate a risk to the fetus.

Breastfeeding

Studies suggest that this medication may alter milk production or composition. If an alternative to this medication is not prescribed, you should monitor the infant for side effects and adequate milk intake.

Drug Interactions

Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.

  • Eplerenone
  • Triamterene

Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

  • Alacepril
  • Arginine
  • Arsenic Trioxide
  • Benazepril
  • Captopril
  • Cilazapril
  • Delapril
  • Dofetilide
  • Droperidol
  • Enalaprilat
  • Enalapril Maleate
  • Fosinopril
  • Imidapril
  • Levomethadyl
  • Lisinopril
  • Moexipril
  • Pentopril
  • Perindopril
  • Potassium
  • Quinapril
  • Ramipril
  • Sotalol
  • Spirapril
  • Tacrolimus
  • Temocapril
  • Trandolapril
  • Zofenopril

Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

  • Aceclofenac
  • Acemetacin
  • Amtolmetin Guacil
  • Aspirin
  • Bromfenac
  • Bufexamac
  • Carbenoxolone
  • Celecoxib
  • Choline Salicylate
  • Clonixin
  • Dexibuprofen
  • Dexketoprofen
  • Diclofenac
  • Diflunisal
  • Dipyrone
  • Etodolac
  • Etofenamate
  • Etoricoxib
  • Felbinac
  • Fenoprofen
  • Fepradinol
  • Feprazone
  • Floctafenine
  • Flufenamic Acid
  • Flurbiprofen
  • Gossypol
  • Ibuprofen
  • Ibuprofen Lysine
  • Indomethacin
  • Ketoprofen
  • Ketorolac
  • Licorice
  • Lornoxicam
  • Loxoprofen
  • Lumiracoxib
  • Meclofenamate
  • Mefenamic Acid
  • Meloxicam
  • Morniflumate
  • Nabumetone
  • Naproxen
  • Nepafenac
  • Niflumic Acid
  • Nimesulide
  • Oxaprozin
  • Oxyphenbutazone
  • Parecoxib
  • Phenylbutazone
  • Piketoprofen
  • Piroxicam
  • Pranoprofen
  • Proglumetacin
  • Propyphenazone
  • Proquazone
  • Quinidine
  • Rofecoxib
  • Salicylic Acid
  • Salsalate
  • Sodium Salicylate
  • Sulindac
  • Tenoxicam
  • Tiaprofenic Acid
  • Tolfenamic Acid
  • Tolmetin
  • Valdecoxib

Other Interactions

Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

Using this medicine with any of the following may cause an increased risk of certain side effects but may be unavoidable in some cases. If used together, your doctor may change the dose or how often you use this medicine, or give you special instructions about the use of food, alcohol, or tobacco.

  • Potassium Containing Food

Other Medical Problems

The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:

  • Diabetes or
  • Hyperkalemia (high potassium in the blood) or
  • Kidney disease (e.g., anuria or diabetic nephropathy)—Should not be used in patients with these conditions .
  • Heart disease or
  • Liver disease, severe (e.g., cirrhosis or hepatic encephalopathy) or
  • Lung disease—Use with caution. May increase the chance of side effects .

Proper Use

In addition to the use of this medicine, treatment for your high blood pressure may include weight control and changes in the types of foods you eat, especially foods high in sodium. Your doctor will tell you which of these are most important for you. You should check with your doctor before changing your diet .

Many patients who have high blood pressure will not notice any signs of the problem. In fact, many may feel normal. It is very important that you take your medicine exactly as directed and that you keep your appointments with your doctor even if you feel well .

Remember that this medicine will not cure your high blood pressure, but it does help control it. You must continue to take it as directed if you expect to lower your blood pressure and keep it down. You may have to take high blood pressure medicine for the rest of your life. If high blood pressure is not treated, it can cause serious problems such as heart failure, blood vessel disease, stroke, or kidney disease .

It is best to take this medicine with food .

Dosing

The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

  • For oral dosage form (tablets):
    • For hypertension or edema:
      • Adults—5 milligrams (mg) once a day. Your doctor may increase your dose if needed.
      • Children—Use and dose must be determined by your doctor .

Missed Dose

If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.

Storage

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.

Keep out of the reach of children.

Do not keep outdated medicine or medicine no longer needed.

Ask your healthcare professional how you should dispose of any medicine you do not use.

Precautions

It is very important that your doctor check your progress at regular visits to make sure this medicine is working properly and to decide if you should continue to take it. Blood tests may be needed to check for unwanted effects .

Do not take other medicines unless they have been discussed with your doctor. This especially includes potassium supplements or salt substitutes containing potassium .

This medicine may increase the amount of potassium in your blood. Check with your doctor right away if you are having abdominal pain; confusion; difficulty breathing; irregular heartbeats; nausea or vomiting; nervousness; numbness or tingling in the hands, feet, or lips; shortness of breath; or weakness or heaviness of the legs .

Side Effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

More common

  1. Abdominal pain
  2. confusion
  3. difficulty with breathing
  4. irregular heartbeat
  5. nausea or vomiting
  6. nervousness
  7. numbness or tingling in the hands, feet, or lips
  8. shortness of breath
  9. weakness or heaviness of the legs

Less common

  1. Agitation
  2. back pain
  3. blurred vision
  4. coma
  5. dizziness
  6. drowsiness
  7. fever
  8. hallucinations (seeing things that aren't there)
  9. headache
  10. irritability
  11. labored breathing
  12. mood or mental changes
  13. seizures (convulsions)
  14. stiff neck
  15. tightness in the chest
  16. unusual tiredness or weakness
  17. vomiting
  18. wheezing

Rare

  1. Arm or jaw pain
  2. bloody or black, tarry stools
  3. burning while urinating
  4. burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
  5. change in vision
  6. chest pain, discomfort, or heaviness
  7. chills
  8. clay-colored stools
  9. cold sweats
  10. constipation
  11. dark urine
  12. difficult or painful urination
  13. dizziness, faintness, or lightheadedness when getting up from a lying or sitting position suddenly
  14. fainting
  15. fast, pounding, racing, or slow heartbeat or pulse
  16. itching
  17. light-colored stools
  18. loss of appetite
  19. loss of vision
  20. rash
  21. shakiness in the legs, arms, hands, or feet
  22. stomach pain, severe
  23. sweating
  24. trembling or shaking of the hands or feet
  25. unpleasant breath odor
  26. vomiting of blood or material that looks like coffee grounds
  27. yellow eyes or skin

Incidence not known

  1. Continuing stomach pain
  2. cough
  3. lower back or side pain
  4. pale skin
  5. sore throat
  6. sores, ulcers, or white spots on the lips or in the mouth
  7. swollen or painful glands
  8. unusual bleeding or bruising

Get emergency help immediately if any of the following symptoms of overdose occur:

Symptoms of overdose

  1. Decreased urination
  2. dry mouth
  3. increase in heart rate
  4. lightheadedness
  5. muscle cramps or pain
  6. pain or weakness in the hands or feet
  7. rapid breathing
  8. sunken eyes
  9. thirst
  10. wrinkled skin

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

  1. Diarrhea
  2. weight loss

Less common

  1. Changes in appetite
  2. decreased interest in sexual intercourse
  3. inability to have or keep an erection
  4. loss in sexual ability, desire, drive, or performance

Rare

  1. Acid or sour stomach
  2. belching
  3. continuing ringing or buzzing or other unexplained noise in the ears
  4. discouragement
  5. disturbed color perception
  6. double vision
  7. excess air or gas in the stomach or intestines
  8. feeling of constant movement of self or surroundings
  9. feeling sad or empty
  10. frequent urination
  11. full or bloated feeling
  12. hair loss or thinning of hair
  13. hearing loss
  14. increased need to urinate
  15. increased volume of pale, dilute urine
  16. indigestion
  17. joint pain
  18. leg ache or pain
  19. loss of interest or pleasure
  20. neck or shoulder ache
  21. night blindness
  22. overbright appearance of lights
  23. pain in the chest below the breastbone
  24. passing of gas
  25. passing urine more often
  26. pressure in the stomach
  27. seeing halos around lights
  28. sensation of spinning
  29. sleepiness or unusual drowsiness
  30. sleeplessness
  31. stomach fullness, discomfort, or upset
  32. stuffy nose
  33. swelling of abdominal or stomach area
  34. swelling of the breasts or breast soreness in both females and males
  35. trouble concentrating
  36. trouble sleeping
  37. tunnel vision
  38. unable to sleep

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.