Health Canada has reviewed the potential risks of choroidal effusion (CE), acute myopia (AM), and acute angle-closure glaucoma (AACG) with the use of certain diuretics, including hydrochlorothiazide, chlorthalidone, indapamide, and acetazolamide. Health Canada has concluded that there is a link between the use of these medications and the risks of CE with AM or with AACG or with both AM and AACG; Health Canada's review also concluded that there might be a link between metolazone and the risk of these ophthalmic disorders. Health Canada is working with manufacturers to update the Canadian product safety information for these products to add a warning about these risks.
Further information may be found at https://hpr-rps.hres.ca/reg-content/summary-safety-review-detail.php?lang=en&linkID=SSR00261.
Calcium nephrolithiasis (off-label use): Oral: 2.5 mg once daily (AUA [Pearle 2014]).
Heart failure, edema: Oral: Initial: 2.5 mg daily; if inadequate response after 1 week, may increase dose to 5 mg daily. Note: There is little therapeutic benefit to increasing the dose >5 mg daily; there is, however, an increased risk of electrolyte disturbances.
Hypertension, chronic:
Note: For patients who warrant combination therapy (BP >20/10 mm Hg above goal or suboptimal response to initial monotherapy), may use in combination with another appropriate agent (eg, angiotensin-converting enzyme inhibitor, angiotensin II receptor blocker, dihydropyridine calcium channel blocker) (ACC/AHA [Whelton 2018]); however, some experts prefer regimens that do not include thiazide diuretics for combination therapy (Mann 2021).
Oral: Initial: 1.25 to 2.5 mg once daily; evaluate response after ~2 to 4 weeks and titrate dose, as needed, up to 5 mg once daily; if additional blood pressure control is needed, consider combination therapy. Patients with severe asymptomatic hypertension and no signs of acute end organ damage should be evaluated for medication titration within 1 week (ACC/AHA [Whelton 2018]; Mann 2021; manufacturer’s labeling).
There are no dosage adjustments provided in the manufacturer's labeling; however, the following adjustments have been recommended:
GFR 10 to 50 mL/minute: 1.25 to 2.5 mg once daily (Golightly 2013)
GFR <10 mL/minute: 1.25 to 2.5 mg once daily (limited data) (Golightly 2013)
Hemodialysis: 1.25 to 2.5 mg once daily (limited data); not dialyzable (Golightly 2013; Acchiardo 1983)
There are no dosage adjustments provided in manufacturer’s labeling; use with caution.
Refer to adult dosing.
Excipient information presented when available (limited, particularly for generics); consult specific product labeling.
Tablet, Oral:
Generic: 1.25 mg, 2.5 mg
Yes
Excipient information presented when available (limited, particularly for generics); consult specific product labeling. [DSC] = Discontinued product
Tablet, Oral:
Lozide: 1.25 mg [DSC] [contains corn starch, fd&c yellow #6 aluminum lake]
Lozide: 2.5 mg [DSC] [contains corn starch, fd&c yellow #6 aluminum lake, sodium benzoate]
Generic: 1.25 mg, 2.5 mg
Oral: May be administered without regard to meals (Caruso 1983); however, administration with food or milk may decrease GI adverse effects. Administer early in day to avoid nocturia.
Heart failure, edema: Treatment of edema in heart failure.
Hypertension, chronic: Management of mild to moderate hypertension.
Calcium nephrolithiasis
Indapamide may be confused with Iopidine
Beers Criteria: Diuretics are identified in the Beers Criteria as potentially inappropriate medications to be used with caution in patients 65 years and older due to the potential to cause or exacerbate syndrome of inappropriate antidiuretic hormone secretion (SIADH) or hyponatremia; monitor sodium concentration closely when initiating or adjusting the dose in older adults (Beers Criteria [AGS 2019]).
Pretanix [Hungary] may be confused with Protonix brand name for pantoprazole [US, Canada]
The following adverse drug reactions and incidences are derived from product labeling unless otherwise specified.
>10%: Endocrine & metabolic: Hypokalemia (<3.5 mEq/L: 20% to 72%, dose-dependent)
1% to 10%:
Cardiovascular: Cardiac arrhythmia (<5%), chest pain (<5%), flushing (<5%), orthostatic hypotension (<5%), palpitations (<5%), peripheral edema (<5%), vasculitis (<5%), ventricular premature contractions (<5%)
Dermatologic: Pruritus (<5%), skin rash (<5%), urticaria (<5%)
Endocrine & metabolic: Decreased libido (<5%), glycosuria (<5%), hyperglycemia (<5%), hyperuricemia (<5%), hypochloremia (<5%), hyponatremia (<5%), weight loss (<5%)
Gastrointestinal: Abdominal cramps (<5%), abdominal pain (<5%), anorexia (<5%), constipation (<5%), diarrhea (<5%), dyspepsia (<5%), gastric irritation (<5%), nausea (<5%), vomiting (<5%), xerostomia (<5%)
Genitourinary: Impotence (<5%), nocturia (<5%), urinary frequency (<5%)
Infection: Infection (≥5%)
Nervous system: Agitation (≥5%), anxiety (≥5%), depression (<5%), dizziness, drowsiness (<5%), fatigue (≥5%), headache (≥5%), hypertonia (<5%), insomnia (<5%), irritability (≥5%), lethargy (≥5%), malaise (≥5%), nervousness, numbness of extremities (≥5%), pain (≥5%), tension (≥5%), tingling of extremities (<5%), vertigo (<5%)
Neuromuscular & skeletal: Asthenia, back pain (≥5%), muscle cramps (≥5%), muscle spasm (≥5%)
Ophthalmic: Blurred vision (<5%), conjunctivitis (<5%)
Renal: Increased blood urea nitrogen (<5%), increased serum creatinine (<5%), polyuria (<5%)
Respiratory: Cough (<5%), flu-like symptoms (<5%), pharyngitis (<5%), rhinitis (≥5%), rhinorrhea (<5%), sinusitis (<5%)
Frequency not defined:
Dermatologic: Bullous rash, erythema multiforme, skin photosensitivity, Stevens-Johnson syndrome
Gastrointestinal: Pancreatitis
Hematologic & oncologic: Agranulocytosis, aplastic anemia, leukopenia, purpuric disease, thrombocytopenia
Hepatic: Abnormal hepatic function tests, cholestatic jaundice, hepatitis
Hypersensitivity: Anaphylaxis
Respiratory: Pneumonitis
Miscellaneous: Fever
Postmarketing: Ophthalmic: Angle-closure glaucoma, choroidal effusion, myopia (acute)
Hypersensitivity to indapamide or any component of the formulation or sulfonamide-derived drugs; anuria.
Note: Although the FDA approved product labeling states this medication is contraindicated with other sulfonamide-containing drug classes, the scientific basis of this statement has been challenged. See “Warnings/Precautions” for more detail.
Canadian labeling: Additional contraindications (not in US labeling): Severe renal failure (CrCl <30 mL/minute); hepatic encephalopathy; severe hepatic impairment; hypokalemia; concomitant use with antiarrhythmic agents causing torsade de pointes; pregnancy; breastfeeding; hereditary problems of galactose intolerance, glucose-galactose malabsorption, or total lactase deficiency.
Concerns related to adverse effects:
• Electrolyte disturbances: Severe hyponatremia with hypokalemia has been reported at recommended doses (particularly in elderly women); risk may be dose dependent, therefore, use lowest dose possible. Hypochloremic alkalosis, hypomagnesemia, or hypercalcemia can also occur; monitor electrolytes periodically during therapy.
• Ocular effects: Sulfonamide or sulfonamide derivatives, including indapamide, may cause an idiosyncratic reaction resulting in acute angle-closure glaucoma and elevated intraocular pressure with or without a noticeable acute myopic shift and/or choroidal effusions. Symptom onset (eg, decreased visual acuity, ocular pain) typically occurs within hours to weeks after treatment initiation and may result in permanent vision loss if left untreated. Risk may be increased in patients with sulfonamide or penicillin allergy.
• Photosensitivity: Photosensitization may occur.
• Sulfonamide (“sulfa”) allergy: The FDA-approved product labeling for many medications containing a sulfonamide chemical group includes a broad contraindication in patients with a prior allergic reaction to sulfonamides. There is a potential for cross-reactivity between members of a specific class (eg, two antibiotic sulfonamides). However, concerns for cross-reactivity have previously extended to all compounds containing the sulfonamide structure (SO2NH2). An expanded understanding of allergic mechanisms indicates cross-reactivity between antibiotic sulfonamides and nonantibiotic sulfonamides may not occur or at the very least this potential is extremely low (Brackett 2004; Johnson 2005; Slatore 2004; Tornero 2004). In particular, mechanisms of cross-reaction due to antibody production (anaphylaxis) are unlikely to occur with nonantibiotic sulfonamides. T-cell-mediated (type IV) reactions (eg, maculopapular rash) are less well understood and it is not possible to completely exclude this potential based on current insights. In cases where prior reactions were severe (Stevens-Johnson syndrome/TEN), some clinicians choose to avoid exposure to these classes.
Disease-related concerns:
• Adrenal insufficiency: Avoid use of diuretics for treatment of elevated blood pressure in patients with primary adrenal insufficiency (Addison disease). Adjustment of glucocorticoid/mineralocorticoid therapy and/or use of other antihypertensive agents is preferred to treat hypertension (Bornstein 2016; Inder 2015).
• Bariatric surgery: Dehydration: Avoid diuretics in the immediate postoperative period after bariatric surgery; electrolyte disturbances and dehydration may occur. Diuretics may be resumed, if indicated, once oral fluid intake goals are met (Ziegler 2009).
• Diabetes: Use with caution in patients with prediabetes or diabetes mellitus; may see a change in glucose control.
• Gout: In certain patients with a history of gout, a familial predisposition to gout, or chronic renal failure, gout can be precipitated.
• Hepatic impairment: Use with caution in patients with severe hepatic dysfunction; in cirrhosis, avoid electrolyte and acid/base imbalances that might lead to hepatic encephalopathy.
• Hypercholesterolemia: Use with caution in patients with moderate or high cholesterol concentrations; thiazide diuretics have been shown to increase cholesterol concentrations; however, indapamide (a thiazide-like diuretic) has not been shown to adversely affected lipids.
• Hypokalemia: Use with caution in patients with hypokalemia; correct before initiating therapy.
• Renal impairment: Use with caution in severe renal disease.
• Systemic lupus erythematosus: Can cause systemic lupus erythematosus exacerbation or activation.
Dosage forms specific issues:
• Lactose: Formulation may contain lactose.
None known.
Ajmaline: Sulfonamides may enhance the adverse/toxic effect of Ajmaline. Specifically, the risk for cholestasis may be increased. Risk C: Monitor therapy
Alcohol (Ethyl): May enhance the orthostatic hypotensive effect of Thiazide and Thiazide-Like Diuretics. Risk C: Monitor therapy
Alfuzosin: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Allopurinol: Thiazide and Thiazide-Like Diuretics may enhance the potential for allergic or hypersensitivity reactions to Allopurinol. Thiazide and Thiazide-Like Diuretics may increase the serum concentration of Allopurinol. Specifically, Thiazide Diuretics may increase the concentration of Oxypurinol, an active metabolite of Allopurinol. Risk C: Monitor therapy
Amifostine: Blood Pressure Lowering Agents may enhance the hypotensive effect of Amifostine. Management: When used at chemotherapy doses, hold blood pressure lowering medications for 24 hours before amifostine administration. If blood pressure lowering therapy cannot be held, do not administer amifostine. Use caution with radiotherapy doses of amifostine. Risk D: Consider therapy modification
Aminolevulinic Acid (Systemic): Photosensitizing Agents may enhance the photosensitizing effect of Aminolevulinic Acid (Systemic). Risk X: Avoid combination
Aminolevulinic Acid (Topical): Photosensitizing Agents may enhance the photosensitizing effect of Aminolevulinic Acid (Topical). Risk C: Monitor therapy
Amphetamines: May diminish the antihypertensive effect of Antihypertensive Agents. Risk C: Monitor therapy
Angiotensin-Converting Enzyme Inhibitors: Thiazide and Thiazide-Like Diuretics may enhance the hypotensive effect of Angiotensin-Converting Enzyme Inhibitors. Thiazide and Thiazide-Like Diuretics may enhance the nephrotoxic effect of Angiotensin-Converting Enzyme Inhibitors. Risk C: Monitor therapy
Anticholinergic Agents: May increase the serum concentration of Thiazide and Thiazide-Like Diuretics. Risk C: Monitor therapy
Antidiabetic Agents: Thiazide and Thiazide-Like Diuretics may diminish the therapeutic effect of Antidiabetic Agents. Risk C: Monitor therapy
Antidiabetic Agents: Hyperglycemia-Associated Agents may diminish the therapeutic effect of Antidiabetic Agents. Risk C: Monitor therapy
Antipsychotic Agents (Second Generation [Atypical]): Blood Pressure Lowering Agents may enhance the hypotensive effect of Antipsychotic Agents (Second Generation [Atypical]). Risk C: Monitor therapy
Arsenic Trioxide: Thiazide and Thiazide-Like Diuretics may enhance the hypotensive effect of Arsenic Trioxide. Thiazide and Thiazide-Like Diuretics may enhance the QTc-prolonging effect of Arsenic Trioxide. Management: When possible, avoid concurrent use of arsenic trioxide with drugs that can cause electrolyte abnormalities, such as the thiazide and thiazide-like diuretics. Risk D: Consider therapy modification
Barbiturates: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Benperidol: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Beta2-Agonists: May enhance the hypokalemic effect of Thiazide and Thiazide-Like Diuretics. Risk C: Monitor therapy
Bile Acid Sequestrants: May decrease the absorption of Thiazide and Thiazide-Like Diuretics. The diuretic response is likewise decreased. Management: Consider separating administraton of bile acid sequestrants and thiazide diuretics by at least 4 hours. Monitor for decreased therapeutic effects of thiazide diuretics if coadministered with a bile acid sequestrant. Risk D: Consider therapy modification
Brigatinib: May diminish the antihypertensive effect of Antihypertensive Agents. Brigatinib may enhance the bradycardic effect of Antihypertensive Agents. Risk C: Monitor therapy
Brimonidine (Topical): May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Bromperidol: May diminish the hypotensive effect of Blood Pressure Lowering Agents. Blood Pressure Lowering Agents may enhance the hypotensive effect of Bromperidol. Risk X: Avoid combination
Calcium Salts: Thiazide and Thiazide-Like Diuretics may decrease the excretion of Calcium Salts. Continued concomitant use can also result in metabolic alkalosis. Risk C: Monitor therapy
CarBAMazepine: Thiazide and Thiazide-Like Diuretics may enhance the adverse/toxic effect of CarBAMazepine. Specifically, there may be an increased risk for hyponatremia. Risk C: Monitor therapy
Cardiac Glycosides: Thiazide and Thiazide-Like Diuretics may enhance the adverse/toxic effect of Cardiac Glycosides. Specifically, cardiac glycoside toxicity may be enhanced by the hypokalemic and hypomagnesemic effect of thiazide diuretics. Risk C: Monitor therapy
Corticosteroids (Systemic): May enhance the hypokalemic effect of Thiazide and Thiazide-Like Diuretics. Risk C: Monitor therapy
Cyclophosphamide: Thiazide and Thiazide-Like Diuretics may enhance the adverse/toxic effect of Cyclophosphamide. Specifically, granulocytopenia may be enhanced. Risk C: Monitor therapy
Desmopressin: Hyponatremia-Associated Agents may enhance the hyponatremic effect of Desmopressin. Risk C: Monitor therapy
Dexketoprofen: May enhance the adverse/toxic effect of Sulfonamides. Risk C: Monitor therapy
Dexmethylphenidate: May diminish the therapeutic effect of Antihypertensive Agents. Risk C: Monitor therapy
Diacerein: May enhance the therapeutic effect of Diuretics. Specifically, the risk for dehydration or hypokalemia may be increased. Risk C: Monitor therapy
Diazoxide: Thiazide and Thiazide-Like Diuretics may enhance the adverse/toxic effect of Diazoxide. Risk C: Monitor therapy
Diazoxide: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Dichlorphenamide: Thiazide and Thiazide-Like Diuretics may enhance the hypokalemic effect of Dichlorphenamide. Risk C: Monitor therapy
Dofetilide: Thiazide and Thiazide-Like Diuretics may enhance the QTc-prolonging effect of Dofetilide. Thiazide and Thiazide-Like Diuretics may increase the serum concentration of Dofetilide. Management: Although hydrochlorothiazide is specifically cited as a contraindication, the risk likely extends to all thiazide and thiazide-like diuretics and may be even greater with chlorthalidone or bendroflumethiazide. Consider alternatives when possible. Risk D: Consider therapy modification
DULoxetine: Blood Pressure Lowering Agents may enhance the hypotensive effect of DULoxetine. Risk C: Monitor therapy
Herbal Products with Blood Pressure Increasing Effects: May diminish the antihypertensive effect of Antihypertensive Agents. Risk C: Monitor therapy
Herbal Products with Blood Pressure Lowering Effects: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Hypotension-Associated Agents: Blood Pressure Lowering Agents may enhance the hypotensive effect of Hypotension-Associated Agents. Risk C: Monitor therapy
Ipragliflozin: May enhance the adverse/toxic effect of Thiazide and Thiazide-Like Diuretics. Specifically, the risk for intravascular volume depletion may be increased. Risk C: Monitor therapy
Ivabradine: Thiazide and Thiazide-Like Diuretics may enhance the arrhythmogenic effect of Ivabradine. Risk C: Monitor therapy
Levodopa-Containing Products: Blood Pressure Lowering Agents may enhance the hypotensive effect of Levodopa-Containing Products. Risk C: Monitor therapy
Levosulpiride: Thiazide and Thiazide-Like Diuretics may enhance the adverse/toxic effect of Levosulpiride. Risk X: Avoid combination
Licorice: May enhance the hypokalemic effect of Thiazide and Thiazide-Like Diuretics. Risk C: Monitor therapy
Lithium: Thiazide and Thiazide-Like Diuretics may decrease the excretion of Lithium. Management: Reduce the lithium dose if coadministered with thiazide or thiazide-like diuretics. Monitor serum lithium levels during coadministration with thiazide and thiazide-like diuretics. Risk D: Consider therapy modification
Lormetazepam: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Mecamylamine: Thiazide and Thiazide-Like Diuretics may enhance the adverse/toxic effect of Mecamylamine. Management: Consider avoiding the use of mecamylamine and thiazide diuretics. If combined, mecamylamine prescribing information suggests reducing the mecamylamine dose by 50% in order to avoid excessive hypotension. Risk D: Consider therapy modification
Methenamine: Thiazide and Thiazide-Like Diuretics may diminish the therapeutic effect of Methenamine. Risk C: Monitor therapy
Methoxsalen (Systemic): Photosensitizing Agents may enhance the photosensitizing effect of Methoxsalen (Systemic). Risk C: Monitor therapy
Methylphenidate: May diminish the antihypertensive effect of Antihypertensive Agents. Risk C: Monitor therapy
Molsidomine: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Multivitamins/Fluoride (with ADE): May enhance the hypercalcemic effect of Thiazide and Thiazide-Like Diuretics. Risk C: Monitor therapy
Multivitamins/Minerals (with ADEK, Folate, Iron): Thiazide and Thiazide-Like Diuretics may enhance the hypercalcemic effect of Multivitamins/Minerals (with ADEK, Folate, Iron). Risk C: Monitor therapy
Multivitamins/Minerals (with AE, No Iron): Thiazide and Thiazide-Like Diuretics may increase the serum concentration of Multivitamins/Minerals (with AE, No Iron). Specifically, thiazide diuretics may decrease the excretion of calcium, and continued concomitant use can also result in metabolic alkalosis. Risk C: Monitor therapy
Naftopidil: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Neuromuscular-Blocking Agents (Nondepolarizing): Thiazide and Thiazide-Like Diuretics may enhance the neuromuscular-blocking effect of Neuromuscular-Blocking Agents (Nondepolarizing). Risk C: Monitor therapy
Nicergoline: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Nicorandil: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Nitroprusside: Blood Pressure Lowering Agents may enhance the hypotensive effect of Nitroprusside. Risk C: Monitor therapy
Nonsteroidal Anti-Inflammatory Agents: Thiazide and Thiazide-Like Diuretics may enhance the nephrotoxic effect of Nonsteroidal Anti-Inflammatory Agents. Nonsteroidal Anti-Inflammatory Agents may diminish the therapeutic effect of Thiazide and Thiazide-Like Diuretics. Risk C: Monitor therapy
Nonsteroidal Anti-Inflammatory Agents (Topical): May diminish the therapeutic effect of Thiazide and Thiazide-Like Diuretics. Risk C: Monitor therapy
Obinutuzumab: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Management: Consider temporarily withholding blood pressure lowering medications beginning 12 hours prior to obinutuzumab infusion and continuing until 1 hour after the end of the infusion. Risk D: Consider therapy modification
Opioid Agonists: May enhance the adverse/toxic effect of Diuretics. Opioid Agonists may diminish the therapeutic effect of Diuretics. Risk C: Monitor therapy
OXcarbazepine: Thiazide and Thiazide-Like Diuretics may enhance the adverse/toxic effect of OXcarbazepine. Specifically, there may be an increased risk for hyponatremia. Risk C: Monitor therapy
Pentoxifylline: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Pholcodine: Blood Pressure Lowering Agents may enhance the hypotensive effect of Pholcodine. Risk C: Monitor therapy
Phosphodiesterase 5 Inhibitors: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Porfimer: Photosensitizing Agents may enhance the photosensitizing effect of Porfimer. Risk C: Monitor therapy
Promazine: Thiazide and Thiazide-Like Diuretics may enhance the QTc-prolonging effect of Promazine. Risk X: Avoid combination
Prostacyclin Analogues: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Quinagolide: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Reboxetine: May enhance the hypokalemic effect of Thiazide and Thiazide-Like Diuretics. Risk C: Monitor therapy
Selective Serotonin Reuptake Inhibitors: May enhance the hyponatremic effect of Thiazide and Thiazide-Like Diuretics. Risk C: Monitor therapy
Sodium Phosphates: Diuretics may enhance the nephrotoxic effect of Sodium Phosphates. Specifically, the risk of acute phosphate nephropathy may be enhanced. Management: Consider avoiding this combination by temporarily suspending treatment with diuretics, or seeking alternatives to oral sodium phosphate bowel preparation. If the combination cannot be avoided, hydrate adequately and monitor fluid and renal status. Risk D: Consider therapy modification
Topiramate: Thiazide and Thiazide-Like Diuretics may enhance the hypokalemic effect of Topiramate. Thiazide and Thiazide-Like Diuretics may increase the serum concentration of Topiramate. Management: Monitor for increased topiramate levels/adverse effects (eg, hypokalemia) with initiation/dose increase of a thiazide diuretic. Closely monitor serum potassium concentrations with concomitant therapy. Topiramate dose reductions may be necessary. Risk D: Consider therapy modification
Toremifene: Thiazide and Thiazide-Like Diuretics may enhance the hypercalcemic effect of Toremifene. Risk C: Monitor therapy
Verteporfin: Photosensitizing Agents may enhance the photosensitizing effect of Verteporfin. Risk C: Monitor therapy
Vitamin D Analogs: Thiazide and Thiazide-Like Diuretics may enhance the hypercalcemic effect of Vitamin D Analogs. Risk C: Monitor therapy
Adverse events were not observed in animal reproduction studies. Diuretics cross the placenta and are found in cord blood. Maternal use may cause fetal or neonatal jaundice, thrombocytopenia, or other adverse events observed in adults. Use of diuretics during normal pregnancies is not appropriate; use may be considered when edema is due to pathologic causes (as in the nonpregnant patient); monitor.
It is not known if indapamide is present in breast milk. If therapy is needed, the manufacturer recommends that breastfeeding be discontinued.
May be taken without regard to meals (Caruso 1983); however, administration with food or milk may to decrease GI adverse effects.
BP (both standing and sitting/supine); serum electrolytes, hepatic function, renal function, uric acid; assess weight, intake and output reports daily to determine fluid loss; visual changes (to assess for ocular adverse effects).
BP goals: May vary depending on clinical condition, different clinical practice guidelines, and expert opinion. Refer to clinical practice guidelines for specific treatment goals.
Diuretic effect is localized at the proximal segment of the distal tubule of the nephron; it does not appear to have significant effect on glomerular filtration rate nor renal blood flow; like other diuretics, it enhances sodium, chloride, and water excretion by interfering with the transport of sodium ions across the renal tubular epithelium
Absorption: Rapid and complete
Distribution: Vd: 25 L (Grebow, 1982)
Protein binding, plasma: 71% to 79%
Metabolism: Extensively hepatic
Bioavailability: 93% (Ernst, 2009)
Half-life elimination: Biphasic: 14 and 25 hours
Time to peak: 2 hours
Excretion: Urine (~70%; 7% as unchanged drug within 48 hours); feces (23%)
Tablets (Indapamide Oral)
1.25 mg (per each): $0.68 - $1.42
2.5 mg (per each): $0.83 - $1.55
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