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Tell your doctor about all the medicines you take including prescription and non-prescription medicines, vitamins, and herbal supplements. Especially tell your doctor if you take:
- ACE inhibitors such as benazepril (Lotensin), captopril (Capoten), enalapril (Vasotec), fosinopril (Monopril), lisinopril (Prinivil, Zestril), quinapril (Accupril), and ramipril (Altace)
- angiotensin receptor II blockers such as azilsartan (Edarbi), candesartan (Atacand), irbesartan (Avapro), losartan (Cozaar), olmesartan (Benicar), telmisartan (Micardis, Twynsta), and valsartan (Diovan)
- medicines that block a substance in the body called aldosterone such as eplerenone (Inspra) and spironolactone (Aldactone)
- heparin (Hemochron, Hep-Lock)
- nonsteroidal anti-inflammatory medications such as ibuprofen (Motrin, Nuprin) or naproxen (Aleve) and salicylates
- corticosteroids such as prednisone, hydrocortisone (Cortef), and dexamethasone (Decadron, Dexone, Hexadrol)
- lithium (Eskalith, Lithobid)
- potassium products including potassium chloride (K-Dur, Klor-Con, Micro-K), potassium citrate (Urocit-K, Polycitra-K), potassium gluconate, potassium phosphate (Neutra-Phos-K, K-Phos)
- salt substitutes that contain potassium
- a group of pain medicines called narcotics such as oxycodone (Roxicodone, Oxycontin, Oxecta)
- barbiturates such as amobarbital (Amytal), butalbital (Fioricet, Fiorinal), phenobarbital (Luminal) and others
- digoxin (Digox, Lanoxin)
- substances that raise blood pressure (pressor amines) such as norepinephrine (Levophed)
- medicines that relax skeletal muscles such as cyclobenzaprine (Flexeril) and carisoprodol (Soma)
- cholestyramine (Questran)
This is not a complete list of Aldactazide drug interactions. Ask your doctor or pharmacist for more information.
Aldactazide Food Interactions
Medications can interact with certain foods. In some cases, this may be harmful and your doctor may advise you to avoid certain foods. In the case of Aldactazide, salt substitutes containing potassium should be avoided.
Aldactazide and Pregnancy
Tell your doctor if you are pregnant or plan to become pregnant.
The FDA categorizes medications based on safety for use during pregnancy. Five categories - A, B, C, D, and X, are used to classify the possible risks to an unborn baby when a medication is taken during pregnancy.
Aldactazide falls into category C. In animal studies, pregnant animals were given Aldactazide, and had some babies born with problems. No well-controlled studies have been done in humans. Therefore, this medication may be used if the potential benefits to the mother outweigh the potential risks to the unborn child.
Uses For Aldactazide
Spironolactone and hydrochlorothiazide combination is used to treat high blood pressure (hypertension). It may also be used to treat water retention (edema) in patients with congestive heart failure, liver cirrhosis, or a kidney disorder called nephrotic syndrome.
Spironolactone helps prevent your body from absorbing too much salt and keeps your potassium levels from getting too low. It can be used to prevent or treat hypokalemia (low potassium levels in the blood).
Spironolactone and hydrochlorothiazide are both diuretic medicines (water pills). They reduce 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.
Proper Use of Aldactazide
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 (salt) and potassium. 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.
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 edema:
- Adults—At first, 100 milligrams (mg) each of spironolactone and hydrochlorothiazide per day, given in either single or divided doses. Your doctor may adjust your dose if needed.
- Children—Use and dose must be determined by your doctor.
- For high blood pressure:
- Adults—At first, 50 to 100 milligrams (mg) each of spironolactone and hydrochlorothiazide per day, given in either single or divided doses. Your doctor may adjust your dose if needed.
- Children—Use and dose must be determined by your doctor.
- For edema:
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.
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 While Using Aldactazide
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 and urine 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, certain diuretics (such as amiloride, triamterene (Dyazide®, Dyrenium®, Maxzide®, Midamor®, Moduretic®), or other products containing spironolactone (Aldactone®).
Check with your doctor immediately if blurred vision, difficulty reading, eye pain, or any other change in vision occurs during or after treatment. This could be a sign of a serious eye problem. Your doctor may want an eye doctor to check your eyes.
This medicine may cause dizziness, drowsiness, lightheadedness, or fainting, especially when you get up suddenly from a lying or sitting position. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangerous until you know how this medicine affects you. If you feel dizzy, lie down so you do not faint. Then sit for a few moments before standing to prevent the dizziness from returning.
Check with your doctor right away if you become sick while taking this medicine, especially if you have severe or continuing nausea, vomiting, or diarrhea that does not stop. These conditions may cause you to lose too much water or salt and may lead to low blood pressure. You can also lose water by sweating, so drink plenty of water during exercise or in hot weather.
This medicine may affect blood sugar levels. Check with your doctor if you notice a change in the results of your blood or urine sugar tests.
This medicine may cause swelling of the breasts (gynecomastia) and breast pain in some patients. If you have questions about this, talk to your doctor.
What are some other side effects of Aldactazide?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
- Hard stools (constipation).
- Loose stools (diarrhea).
- Feeling sleepy.
- Upset stomach or throwing up.
- Feeling tired or weak.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
Potassium supplementation, either in the form of medication or as a diet rich in potassium, should not ordinarily be given in association with Aldactazide therapy. Excessive potassium intake may cause hyperkalemia in patients receiving Aldactazide (see Precautions: General).
Concomitant administration of Aldactazide with the following drugs or potassium sources may lead to severe hyperkalemia:
- other potassium-sparing diuretics
- ACE inhibitors
- angiotensin II receptor antagonists
- aldosterone blockers
- non-steroidal anti-inflammatory drugs (NSAIDs), e.g., indomethacin
- heparin and low molecular weight heparin
- other drugs or conditions known to cause hyperkalemia
- potassium supplements
- diet rich in potassium
- salt substitutes containing potassium
Aldactazide should not be administered concurrently with other potassium-sparing diuretics. Spironolactone, when used with ACE inhibitors or indomethacin, even in the presence of a diuretic, has been associated with severe hyperkalemia. Extreme caution should be exercised when Aldactazide is given concomitantly with these drugs (see Precautions: Drug interactions).
Aldactazide should be used with caution in patients with impaired hepatic function because minor alterations of fluid and electrolyte balance may precipitate hepatic coma.
Lithium generally should not be given with diuretics (see Precautions: Drug interactions).
Thiazides should be used with caution in severe renal disease. In patients with renal disease, thiazides may precipitate azotemia. Cumulative effects of the drug may develop in patients with impaired renal function.
Thiazides may add to or potentiate the action of other antihypertensive drugs.
Sensitivity reactions to thiazides may occur in patients with or without a history of allergy or bronchial asthma.
Sulfonamide derivatives, including thiazides, have been reported to exacerbate or activate systemic lupus erythematosus.
Acute Myopia and Secondary Angle-Closure Glaucoma
Hydrochlorothiazide, a sulfonamide, can cause an idiosyncratic reaction, resulting in acute transient myopia and acute angle-closure glaucoma. Symptoms include acute onset of decreased visual acuity or ocular pain and typically occur within hours to weeks of drug initiation. Untreated acute angle-closure glaucoma can lead to permanent vision loss. The primary treatment is to discontinue hydrochlorothiazide as rapidly as possible. Prompt medical or surgical treatments may need to be considered if the intraocular pressure remains uncontrolled. Risk factors for developing acute angle-closure glaucoma may include a history of sulfonamide or penicillin allergy.
The oral LD50 of spironolactone is greater than 1000 mg/kg in mice, rats, and rabbits. The oral LD50 of hydrochlorothiazide is greater than 10 g/kg in both mice and rats.
Acute overdosage of spironolactone may be manifested by drowsiness, mental confusion, maculopapular or erythematous rash, nausea, vomiting, dizziness, or diarrhea. Rarely, instances of hyponatremia, hyperkalemia (less commonly seen with Aldactazide because the hydrochlorothiazide component tends to produce hypokalemia), or hepatic coma may occur in patients with severe liver disease, but these are unlikely due to acute overdosage.
However, because Aldactazide contains both spironolactone and hydrochlorothiazide, the toxic effects may be intensified, and signs of thiazide overdosage may be present. These include electrolyte imbalance such as hypokalemia and/or hyponatremia. The potassium-sparing action of spironolactone may predominate and hyperkalemia may occur, especially in patients with impaired renal function. BUN determinations have been reported to rise transiently with hydrochlorothiazide. There may be CNS depression with lethargy or even coma.
Induce vomiting or evacuate the stomach by lavage. There is no specific antidote. Treatment is supportive to maintain hydration, electrolyte balance, and vital functions.
Patients who have renal impairment may develop spironolactone-induced hyperkalemia. In such cases, Aldactazide should be discontinued immediately. With severe hyperkalemia, the clinical situation dictates the procedures to be employed. These include the intravenous administration of calcium chloride solution, sodium bicarbonate solution, and/or the oral or parenteral administration of glucose with a rapid-acting insulin preparation. These are temporary measures to be repeated as required. Cationic exchange resins such as sodium polystyrene sulfonate may be orally or rectally administered. Persistent hyperkalemia may require dialysis.
What should i discuss with my doctor before taking hydrochlorothiazide and spironolactone (aldactazide)?
You should not use this medication if you are allergic to hydrochlorothiazide or spironolactone, or if you have:
- kidney disease or are unable to urinate;
- high potassium levels (hyperkalemia); or
- if you are taking potassium supplements.
To make sure you can safely take hydrochlorothiazide and spironolactone, tell your doctor if you have any of these other conditions:
- heart disease;
- cirrhosis or other liver disease;
- a breathing disorder;
- an allergy to sulfa drugs or penicillin;
- a pancreas disorder; or
- if you are using another blood pressure medication or a steroid.
FDA pregnancy category C. It is not known whether hydrochlorothiazide and spironolactone will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant while using this medication.
Hydrochlorothiazide passes into breast milk and could cause harm to a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.