Interactions between Capecitabine and Hydroflumethiazide
1 drug interaction and 33 additional warnings found for the following 2 drugs:
- capecitabine
- hydroflumethiazide
Drug interactions
Moderate drug interactions
Moderate:
hydroflumethiazide capecitabine
Applies to: hydroflumethiazide and capecitabine
Monitor
Antineoplastic-induced bone marrow suppression may be prolonged with concomitant thiazide administration. The mechanism is unknown. Thiazides have been associated with blood dyscrasias.
Management
Alternative antihypertensive therapy may be advisable. Hematological status should be closely monitored in patients receiving this combination.
References (3)
- Kristensen LO, Weismann K, Hutters L (1975) "Renal function and the rate of disappearance of methotrexate from serum." Eur J Clin Pharmacol, 8, p. 439-44
- Orr LE (1981) "Potentiation of myelosuppression from cancer chemotherapy and thiazide diuretics." Drug Intell Clin Pharm, 15, p. 967-70
- Limbird LE eds., Gilman AG, Hardman JG (1995) "Goodman and Gilman's the Pharmacological Basis of Therapeutics." New York, NY: McGraw-Hill
Food/lifestyle interactions
Moderate food/lifestyle interactions
Moderate:
hydroflumethiazide Alcohol (Ethanol)
Applies to: hydroflumethiazide
Monitor
Certain psychotherapeutic and other CNS-active agents may have blood pressure-lowering effects and may cause dizziness, orthostatic hypotension, or syncope. These effects may be more likely during treatment initiation, dose escalation, or treatment restart. Coadministration with antihypertensives or other agents with blood pressure-lowering properties, particularly vasodilators and alpha-adrenergic blockers, may result in additive hypotensive or orthostatic effects.
Management
Monitor blood pressure and clinical response during concomitant use, especially when starting or increasing the dose of either agent. Patients should be advised to rise slowly from a sitting or lying position and to report dizziness, lightheadedness, fainting, orthostasis, palpitations, or troublesome changes in pulse or heart rate. Patients should be cautioned that alcohol may enhance blood pressure-lowering effects during concomitant use with antihypertensives or other agents with hypotensive properties. Patients should avoid driving or operating hazardous machinery until they know how the medications affect them.
References (13)
- Sternbach H (1991) "Fluoxetine-associated potentiation of calcium-channel blockers." J Clin Psychopharmacol, 11, p. 390-1
- Shook TL, Kirshenbaum JM, Hundley RF, Shorey JM, Lamas GA (1984) "Ethanol intoxication complicating intravenous nitroglycerin therapy." Ann Intern Med, 101, p. 498-9
- Feder R (1991) "Bradycardia and syncope induced by fluoxetine." J Clin Psychiatry, 52, p. 139
- Ellison JM, Milofsky JE, Ely E (1990) "Fluoxetine-induced bradycardia and syncope in two patients." J Clin Psychiatry, 51, p. 385-6
- Rodriguez de la Torre B, Dreher J, Malevany I, et al. (2001) "Serum levels and cardiovascular effects of tricyclic antidepressants and selective serotonin reuptake inhibitors in depressed patients." Ther Drug Monit, 23, p. 435-40
- Pacher P, Kecskemeti V (2004) "Cardiovascular side effects of new antidepressants and antipsychotics: new drugs, old concerns?" Curr Pharm Des, 10, p. 2463-75
- Andrews C, Pinner G (1998) "Postural hypotension induced by paroxetine." BMJ, 316, p. 595
- (2023) "Product Information. Buprenorphine (buprenorphine)." G.L. Pharma UK Ltd
- (2023) "Product Information. Temgesic (buprenorphine)." Reckitt Benckiser Pty Ltd
- (2026) "Product Information. Urapidil (Carinopharm) (urapidil)." Imported (EU)
- (2020) "Product Information. URAPIDIL ACCORD (urapidil)." ACCORD HEALTHCARE LIMITED
- (2020) "Product Information. Ebrantil (urapidil)." CHEPLAPHARM ARZNEIMITTEL GMBH
- (2026) "Product Information. Urapidil (urapidil)." Imported (Switzerland)
Disease interactions
32 potential interactions Applies to: 27 conditions, including High Cholesterol, Asthma, Gout, Diarrhea, and Hypokalemia.
Abnormal Glucose Tolerance
Moderate:
hydroflumethiazide
Hydroflumethiazide has a moderate potential interaction with Abnormal Glucose Tolerance.
Thiazide diuretics may cause hyperglycemia and glycosuria in patients with diabetes. They may also precipitate diabetes in prediabetic patients. These effects are usually reversible following discontinuation of the drugs. Therapy with thiazide diuretics should be administered cautiously in patients with diabetes mellitus, glucose intolerance, or a predisposition to hyperglycemia. Patients with diabetes mellitus should be monitored more closely during thiazide therapy, and their antidiabetic regimen adjusted accordingly.
Anuria
Major:
hydroflumethiazide
Hydroflumethiazide has a major potential interaction with Anuria.
The use of thiazide diuretics is contraindicated in patients with anuria.
Asthma
Moderate:
hydroflumethiazide
Hydroflumethiazide has a moderate potential interaction with Asthma.
Thiazide diuretics should be used with caution in patients with history of bronchial asthma as sensitivity reactions may occur.
Bleeding Disorder
Major:
capecitabine
Capecitabine has a major potential interaction with Bleeding Disorder.
Capecitabine is metabolized by the liver to fluorouracil (5-FU). Fluorouracil induces bone marrow suppression. Leukopenia, thrombocytopenia, and anemia, some severe, have been reported with capecitabine therapy. Patients should be instructed to immediately report any signs or symptoms suggesting bone marrow suppression such as fever, sore throat, local infection, or bleeding. Close clinical monitoring of hematopoietic function is recommended
Bone Marrow Depression/Low Blood Counts
Major:
capecitabine
Capecitabine has a major potential interaction with Bone Marrow Depression/Low Blood Counts.
Capecitabine is metabolized by the liver to fluorouracil (5-FU). Fluorouracil induces bone marrow suppression. Leukopenia, thrombocytopenia, and anemia, some severe, have been reported with capecitabine therapy. Patients should be instructed to immediately report any signs or symptoms suggesting bone marrow suppression such as fever, sore throat, local infection, or bleeding. Close clinical monitoring of hematopoietic function is recommended
Dehydration
Major:
hydroflumethiazide
Hydroflumethiazide has a major potential interaction with Dehydration.
The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.
Moderate:
capecitabine
Capecitabine has a moderate potential interaction with Dehydration.
Dehydration has been observed in patients receiving capecitabine and it may cause acute renal failure which could be fatal. Patients with asthenia, anorexia, nausea, vomiting or diarrhea may rapidly become dehydrated. Patients should be monitored to prevent and correct dehydration at the onset. If dehydration grade 2 or higher occurs, treatment should be interrupted until dehydration is corrected. Since capecitabine can also induce diarrhea, sometimes severe, patients should be carefully monitored and receive fluid and electrolyte replacement. Standard antidiarrheal treatments are recommended.
Diabetes Mellitus
Moderate:
hydroflumethiazide
Hydroflumethiazide has a moderate potential interaction with Diabetes Mellitus.
Thiazide diuretics may cause hyperglycemia and glycosuria in patients with diabetes. They may also precipitate diabetes in prediabetic patients. These effects are usually reversible following discontinuation of the drugs. Therapy with thiazide diuretics should be administered cautiously in patients with diabetes mellitus, glucose intolerance, or a predisposition to hyperglycemia. Patients with diabetes mellitus should be monitored more closely during thiazide therapy, and their antidiabetic regimen adjusted accordingly.
Diarrhea
Major:
hydroflumethiazide
Hydroflumethiazide has a major potential interaction with Diarrhea.
The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.
Moderate:
capecitabine
Capecitabine has a moderate potential interaction with Diarrhea.
Dehydration has been observed in patients receiving capecitabine and it may cause acute renal failure which could be fatal. Patients with asthenia, anorexia, nausea, vomiting or diarrhea may rapidly become dehydrated. Patients should be monitored to prevent and correct dehydration at the onset. If dehydration grade 2 or higher occurs, treatment should be interrupted until dehydration is corrected. Since capecitabine can also induce diarrhea, sometimes severe, patients should be carefully monitored and receive fluid and electrolyte replacement. Standard antidiarrheal treatments are recommended.
Electrolyte Abnormalities
Major:
hydroflumethiazide
Hydroflumethiazide has a major potential interaction with Electrolyte Abnormalities.
The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.
Enzymopathy, Unspecified
Moderate:
capecitabine
Capecitabine has a moderate potential interaction with Enzymopathy, Unspecified.
Capecitabine is metabolized to fluorouracil. Capecitabine and fluorouracil are not recommended for use in patients known to have certain variants in the DPYD gene known to result in complete (or near complete) DPD deficiency; enzymatic deficiency results in increased systemic drug exposure. Consider testing for genetic variants of DPYD prior to initiating therapy. No dose of capecitabine or fluorouracil has been proven safe for patients with complete DPD deficiency and there are insufficient data to recommend a dose in patients with partial DPD deficiency. Withhold or permanently discontinue therapy (based on clinical judgement) in patients with evidence of acute early-onset or unusually severe adverse reactions, which may indicate complete DPD deficiency.
Fever
Major:
capecitabine
Capecitabine has a major potential interaction with Fever.
Capecitabine is metabolized by the liver to fluorouracil (5-FU). Fluorouracil induces bone marrow suppression. Leukopenia, thrombocytopenia, and anemia, some severe, have been reported with capecitabine therapy. Patients should be instructed to immediately report any signs or symptoms suggesting bone marrow suppression such as fever, sore throat, local infection, or bleeding. Close clinical monitoring of hematopoietic function is recommended
Gout
Moderate:
hydroflumethiazide
Hydroflumethiazide has a moderate potential interaction with Gout.
Thiazide diuretics decrease the rate of uric acid excretion. Hyperuricemia occurs frequently but is usually asymptomatic and rarely leads to clinical gout except in patients with a history of gout or chronic renal failure. Therapy with thiazide diuretics should be administered cautiously in such patients.
High Cholesterol
Moderate:
hydroflumethiazide
Hydroflumethiazide has a moderate potential interaction with High Cholesterol.
Thiazide diuretics may increase serum triglyceride and cholesterol levels, primarily LDL and VLDL. Whether these effects are dose-related and sustained during chronic therapy are unknown. Patients with preexisting hyperlipidemia may require closer monitoring during thiazide therapy, and adjustments made accordingly in their lipid-lowering regimen
Hyperaldosteronism
Major:
hydroflumethiazide
Hydroflumethiazide has a major potential interaction with Hyperaldosteronism.
The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.
Hyperparathyroidism
Moderate:
hydroflumethiazide
Hydroflumethiazide has a moderate potential interaction with Hyperparathyroidism.
Urinary calcium excretion is decreased by thiazide diuretics during chronic administration. Pathologic changes in the parathyroid gland with hypercalcemia and hypophosphatemia have been reported during prolonged therapy. However, the common complications of hyperparathyroidism such as renal lithiasis, bone resorption, and peptic ulceration have not been seen. Clinicians should be cognizant of these effects when prescribing or administering thiazide therapy to patients with hyperparathyroidism. These drugs should be discontinued before carrying out tests for parathyroid function.
Hypokalemia
Major:
hydroflumethiazide
Hydroflumethiazide has a major potential interaction with Hypokalemia.
The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.
Hyponatremia
Major:
hydroflumethiazide
Hydroflumethiazide has a major potential interaction with Hyponatremia.
The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.
Infection
Major:
capecitabine
Capecitabine has a major potential interaction with Infection.
Because of their cytotoxic effects on rapidly proliferating tissues, antineoplastic agents frequently can, to varying extent, induce myelosuppression. The use of these drugs may be contraindicated in patients with known infectious diseases. All patients should be instructed to immediately report any signs or symptoms suggesting infection such as fever, sore throat, or local infection during antineoplastic therapy. Close clinical monitoring of hematopoietic function is recommended.
Ischemic Heart Disease
Major:
capecitabine
Capecitabine has a major potential interaction with Ischemic Heart Disease.
Capecitabine can cause cardiotoxicity including myocardial infarction, ischemia, angina, dysrhythmias, cardiac failure, sudden death, electrocardiographic changes and cardiomyopathy. These adverse reactions can be more common in patients with a prior history of coronary artery disease.
Liver Disease
Major:
hydroflumethiazide
Hydroflumethiazide has a major potential interaction with Liver Disease.
Patients with severe liver disease or cirrhosis are very susceptible to thiazide-induced hypokalemic hypochloremic alkalosis. Blood ammonia concentrations may be further increased in patients with previously elevated concentrations. Hepatic encephalopathy and death have occurred secondary to the electrolyte alterations accompanying diuretic use. Therapy with thiazide diuretics should be administered cautiously in patients with impaired hepatic function or progressive liver disease, and discontinued promptly if signs of impending hepatic coma appear (e.g., tremors, confusion, and increased jaundice).
Moderate:
capecitabine
Capecitabine has a moderate potential interaction with Liver Disease.
Capecitabine is extensively metabolized by the liver. In patients with mild to moderate liver dysfunction due to liver metastases the Cmax and AUC of capecitabine were increased 60%. These patients should be carefully monitored when capecitabine is administered. The effect of severe hepatic dysfunction on capecitabine has not been assessed. Clinical monitoring of hepatic function is recommended for patients with compromised hepatic function.
Lupus Erythematosus
Major:
hydroflumethiazide
Hydroflumethiazide has a major potential interaction with Lupus Erythematosus.
The use of thiazide diuretics has been reported to possibly exacerbate or activate systemic lupus erythematosus. Reported cases have generally been associated with chlorothiazide and hydrochlorothiazide. Therapy with thiazide diuretics should be administered cautiously in patients with a history or risk of SLE.
Magnesium Imbalance
Major:
hydroflumethiazide
Hydroflumethiazide has a major potential interaction with Magnesium Imbalance.
The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.
Malnourishment
Major:
hydroflumethiazide
Hydroflumethiazide has a major potential interaction with Malnourishment.
The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.
Renal Dysfunction
Major:
capecitabine
Capecitabine has a major potential interaction with Renal Dysfunction.
Capecitabine is contraindicated in patients with severe renal impairment (creatinine clearance below 30 mL/min). Patients with moderate renal impairment at baseline require a dose reduction. Patients with mild and moderate impairment should be carefully monitored for adverse reactions and prompt interruption of therapy with subsequent dose adjustment might be required depending on the developed adverse events.
Major:
hydroflumethiazide
Hydroflumethiazide has a major potential interaction with Renal Dysfunction.
Thiazide diuretics may be ineffective when the glomerular filtration rate is low (GFR < 25 mL/min) because they are not expected to be filtered into the renal tubule, their site of action. In addition, thiazide diuretics decrease the GFR and may precipitate azotemia in renal disease. Cumulative effects may also develop because most of these drugs are excreted unchanged in the urine by glomerular filtration and active tubular secretion. Therapy with thiazide diuretics should be administered cautiously at reduced dosages in patients with renal impairment. If renal function becomes progressively worse, as indicated by rising BUN or serum creatinine levels, an interruption or discontinuation of thiazide therapy should be considered.
Thyroid Disease
Moderate:
hydroflumethiazide
Hydroflumethiazide has a moderate potential interaction with Thyroid Disease.
Thiazide diuretics may decrease serum PBI (protein-bound iodine) levels without associated thyroid disturbance. Clinicians should be cognizant of this effect when prescribing or administering thiazide therapy to patients with thyroid disorders.
Ventricular Arrhythmia
Major:
hydroflumethiazide
Hydroflumethiazide has a major potential interaction with Ventricular Arrhythmia.
The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.
Vomiting
Major:
hydroflumethiazide
Hydroflumethiazide has a major potential interaction with Vomiting.
The use of thiazide diuretics is commonly associated with loss of electrolytes, most significantly potassium but also sodium, chloride, bicarbonate, and magnesium. The loss of other electrolytes such as phosphate, bromide and iodide is usually slight. Potassium and magnesium depletion may lead to cardiac arrhythmias and cardiac arrest. Other electrolyte-related complications include metabolic alkalosis and hyponatremia, which are rarely life-threatening. Therapy with thiazide diuretics should be administered cautiously in patients with or predisposed to fluid and electrolyte depletion, including patients with primary or secondary aldosteronism (may have low potassium levels); those with severe or prolonged diarrhea or vomiting; and those with poor nutritional status. Fluid and electrolyte abnormalities should be corrected prior to initiating therapy, and blood pressure as well as serum electrolyte concentrations monitored periodically and maintained at normal ranges during therapy. Patients should be advised to immediately report signs and symptoms of fluid or electrolyte imbalance, including dry mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Digitalized patients and patients with a history of ventricular arrhythmias should be monitored carefully, since development of hypokalemia may be particularly dangerous in these patients. The risk of hypokalemia may be minimized by slow diuresis, a lower thiazide dosage, potassium supplementation, or combined use with a potassium-sparing diuretic.
Moderate:
capecitabine
Capecitabine has a moderate potential interaction with Vomiting.
Dehydration has been observed in patients receiving capecitabine and it may cause acute renal failure which could be fatal. Patients with asthenia, anorexia, nausea, vomiting or diarrhea may rapidly become dehydrated. Patients should be monitored to prevent and correct dehydration at the onset. If dehydration grade 2 or higher occurs, treatment should be interrupted until dehydration is corrected. Since capecitabine can also induce diarrhea, sometimes severe, patients should be carefully monitored and receive fluid and electrolyte replacement. Standard antidiarrheal treatments are recommended.
More resources
capecitabine
A total of 304 drugs are known to interact with capecitabine.
- Capecitabine is in the drug class antimetabolites.
-
Capecitabine is used to treat the following conditions:
- Anal Cancer (off-label)
- Breast Cancer
- Breast Cancer, Metastatic
- Colorectal Cancer
- Esophageal Cancer
- Gastric Cancer
- Gastroesophageal Cancer
- Gastroesophageal Junction Cancer
- Non Small Cell Lung Cancer (off-label)
- Pancreatic Cancer
- Prostate Cancer (off-label)
- Renal Cell Carcinoma (RCC) (off-label)
hydroflumethiazide
A total of 495 drugs are known to interact with hydroflumethiazide.
- Hydroflumethiazide is in the drug class thiazide diuretics.
- Hydroflumethiazide is used to treat the following conditions:
Drug Interaction Classification
| Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
| Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
| Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. | |
| No interaction information available. |
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.