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diazoxide
Overview
What is Proglycem?
PROGLYCEM (diazoxide) is a nondiuretic benzothiadiazine derivative taken orally for the management of symptomatic hypoglycemia. PROGLYCEMCapsules contain 50 mg diazoxide, USP. The Suspension contains 50 mg of diazoxide, USP in each milliliter and has a chocolate-mint flavor; alcohol content is approximately 7.25%. Other ingredients: Sorbitol solution, chocolate cream flavor, propylene glycol, magnesium aluminum silicate, carboxymethycellulose sodium, mint flavor, sodium benzoate, methylparaben, poloxamer 188, propylparaben, and purified water. Hydrochloric acid or sodium hydroxide may be added to adjust pH.
Diazoxide has the following structural formula:
Diazoxide is 7-chloro-3-methyl-2-1,2,4-benzothiadiazine 1,1-dioxide with the empirical formula CHClNOS and the molecular weight 230.7. It is a white powder practically insoluble to sparingly soluble in water.
What does Proglycem look like?
What are the available doses of Proglycem?
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What should I talk to my health care provider before I take Proglycem?
Sorry No records found
How should I use Proglycem?
PROGLYCEM (ORAL DIAZOXIDE) is useful in the management of hypoglycemia due to hyperinsulinism associated with the following conditions:
PROGLYCEM should be used only after a diagnosis of hypoglycemia due to one of the above conditions has been definitely established. When other specific medical therapy or surgical management either has been unsuccessful or is not feasible, treatment with PROGLYCEM should be considered.
Patients should be under close clinical observation when treatment with PROGLYCEM is initiated. The clinical response and blood glucose level should be carefully monitored until the patient's condition has stabilized satisfactory; in most instances, this may be accomplished in several days. If administration of PROGLYCEM is not effective after two or three weeks, the drug should be discontinued.
The dosage of PROGLYCEM must be individualized based on the severity of the hypoglycemic condition and the blood glucose level and clinical response of the patient. The dosage should be adjusted until the desired clinical and laboratory effects are produced with the least amount of the drug. Special care should be taken to assure accuracy of dosage in infants and young children.
What interacts with Proglycem?
The use of PROGLYCEM for functional hypoglycemia is contraindicated. The drug should not be used in patients hypersensitive to diazoxide or to other thiazides unless the potential benefits outweigh the possible risks.
What are the warnings of Proglycem?
Research indicates that patients with impaired kidney function, including premature neonates, who receive parenteral levels of aluminum at greater than 4 to 5 mcg/kg/day accumulate aluminum levels associated with central nervous system and bone toxicity. Tissue loading may occur at even lower rates of administration.
The antidiuretic property of diazoxide may lead to significant fluid retention, which in patients with compromised cardiac reserve, may precipitate congestive heart failure. The fluid retention will respond to conventional therapy with diuretics.
It should be noted that concomitantly administered thiazides may potentiate the hyperglycemic and hyperuricemic actions of diazoxide (See and ).
Ketoacidosis and nonketotic hyperosmolar coma have been reported in patients treated with recommended doses of PROGLYCEM usually during intercurrent illness. Prompt recognition and treatment are essential (See ), and prolonged surveillance following the acute episode is necessary because of the long drug half-life of approximately 30 hours. The occurrence of these serious events may be reduced by careful education of patients regarding the need for monitoring the urine for sugar and ketones and for prompt reporting of abnormal findings and unusual symptoms to the physician. Transient cataracts occurred in association with hyperosmolar coma in an infant, and subsided on correction of the hyper-osmolarity. Cataracts have been observed in several animals receiving daily doses of intravenous or oral diazoxide.
The development of abnormal facial features in four children treated chronically (>4 years) with PROGLYCEM for hypoglycemia hyperinsulinism in the same clinic has been reported.
Pulmonary Hypertension in Neonates and Infants
There have been postmarketing reports of pulmonary hypertension occurring in infants and neonates treated with diazoxide. The cases were reversible upon discontinuation of the drug. Monitor patients, especially those with risk factors for pulmonary hypertension, for respiratory distress and discontinue diazoxide if pulmonary hypertension is suspected.
What are the precautions of Proglycem?
General:
Treatment with PROGLYCEM should be initiated under close clinical supervision, with careful monitoring of blood glucose and clinical response until the patient's condition has stabilized. This usually requires several days. If not effective in two to three weeks, the drug should be discontinued.
Prolonged treatment requires regular monitoring of the urine for sugar and ketones, especially under stress conditions, with prompt reporting of any abnormalities to the physician. Additionally, blood sugar levels should be monitored periodically by the physician to determine the need for dose adjustment.
The effects of diazoxide on the hematopoietic system and the level of serum uric acid should be kept in mind; the latter should be considered particularly in patients with hyperuricemia or a history of gout.
In some patients, higher blood levels have been observed with the oral suspension than with the capsule formulation of PROGLYCEM. Dosage should be adjusted as necessary in individual patients if changed from one formulation to the other.
Since the plasma half-life of diazoxide is prolonged in patients with impaired renal function, a reduced dosage should be considered. Serum electrolyte levels should also be evaluated for such patients.
The antihypertensive effect of other drugs may be enhanced by PROGLYCEM, and this should be kept in mind when administering it concomitantly with antihypertensive agents.
Because of the protein binding, administration of PROGLYCEM with coumarin or its derivatives may require reduction in the dosage of the anticoagulant, although there has been no reported evidence of excessive anticoagulant effect. In addition, PROGLYCEM may possibly displace bilirubin from albumin; this should be kept in mind particularly when treating newborns with increased bilirubinemia.
Pulmonary hypertension has been reported in neonates and young infants treated with diazoxide. (see )
Information for Patients:
- to take the drug on a regular schedule as prescribed, not to skip doses, not to take extra doses;
- not to use this drug with other medications unless this is done with the physician's advice;
- not to allow anyone else to take this medication;
- to follow dietary instructions;
- to report promptly any adverse effects (i.e., increased urinary frequency, increased thirst, fruity breath odor);
- to report pregnancy or to discuss plans for pregnancy.
During treatment with PROGLYCEM the patient should be advised to consult regularly with the physician and to cooperate in the periodic monitoring of his condition by laboratory tests. In addition, the patient should be advised:
Laboratory tests:
The following procedures may be especially important in patient monitoring (not necessarily inclusive); blood glucose determinations (recommended at periodic intervals in patients taking diazoxide orally for treatment of hypoglycemia, until stabilized); blood urea nitrogen (BUN) determinations and creatinine clearance determinations; hematocrit determinations; platelet count determinations; total and differential leukocyte counts; serum aspartate aminotransferase (AST) level determinations; serum uric acid level determinations; and urine testing for glucose and ketones (in patients being treated with diazoxide for hypoglycemia, semiquantitative estimation of sugar and ketones in serum performed by the patient and reported to the physician provides frequent and relatively inexpensive monitoring of the condition).
Drug Interactions:
Since diazoxide is highly bound to serum proteins, it may displace other substances which are also bound to protein, such as bilirubin or coumarin and its derivatives, resulting in higher blood levels of these substances. Concomitant administration of oral diazoxide and diphenylhydantoin may result in a loss of seizure control. These potential interactions must be considered when administering PROGLYCEM Capsules or Suspension.
The concomitant administration of thiazides or other commonly used diuretics may potentiate the hyperglycemic and hyperuricemic effects of diazoxide.
Drug/Laboratory Test Interactions:
The hyperglycemic and hyperuricemic effects of diazoxide preclude proper assessment of these metabolic states. Increased renin secretion, IgG concentrations and decreased cortisol secretions have also been noted. Diazoxide inhibits glucagon-stimulated insulin release and causes a false-negative insulin response to glucagon.
Carcinogenesis, mutagenesis, impairment of fertility:
No long-term animal dosing study has been done to evaluate the carcinogenic potential of diazoxide. No laboratory study of mutagenic potential or animal study of effects on fertility has been done.
Reproduction studies using the oral preparation in rats have revealed increased fetal resorptions and delayed parturition, as well as fetal skeletal anomalies; evidence of skeletal and cardiac teratogenic effects in rabbits has been noted with intravenous administration. The drug has also been demonstrated to cross the placental barrier in animals and to cause degeneration of the fetal pancreatic beta cells (See ). Since there are no adequate data on fetal effects of this drug when given to pregnant women, safety in pregnancy has not been established. When the use of PROGLYCEM is considered, the indications should be limited to those specified above for adults (See ), and the potential benefits to the mother must be weighed against possible harmful effects to the fetus.
Non-teratogenic effects:
Diazoxide crosses the placental barrier and appears in cord blood. When given to the mother prior to delivery of the infant, the drug may produce fetal or neonatal hyperbilirubinemia, thrombocytopenia, altered carbohydrate metabolism, and possibly other side effects that have occurred in adults.
Alopecia and hypertrichosis lanuginosa have occurred in infants whose mothers received oral diazoxide during the last 19 to 60 days of pregnancy.
Labor and delivery:
Since intravenous administration of the drug during labor may cause cessation of uterine contractions, and administration of oxytocic agents may be required to reinstate labor, caution is advised in administering PROGLYCEM at that time.
Nursing mothers:
Information is not available concerning the passage of diazoxide in breast milk. Because many drugs are excreted in human milk and because of the potential for adverse reactions from diazoxide in nursing infants, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.
Pediatric use:
(See ).
What are the side effects of Proglycem?
Array
Frequent and Serious:
Sodium and fluid retention is most common in young infants and in adults and may precipitate congestive heart failure in patients with compromised cardiac reserve. It usually responds to diuretic therapy (See ).
Array
Infrequent but Serious:
Diabetic ketoacidosis and hyperosmolar nonketotic coma may develop very rapidly. Conventional therapy with insulin and restoration of fluid and electrolyte balance is usually effective if instituted promptly. Prolonged surveillance is essential in view of the long half-life of PROGLYCEM (See ).
Array
Other frequent adverse reactions:
Hirsutism of the lanugo type, mainly on the forehead, back and limbs, occurs most commonly in children and women and may be cosmetically unacceptable. It subsides on discontinuation of the drug.
Hyperglycemia or glycosuria may require reduction in dosage in order to avoid progression to ketoacidosis or hyperosmolar coma.
Gastrointestinal intolerance may include anorexia, nausea, vomiting, abdominal pain, ileus, diarrhea, transient loss of taste.
Tachycardia, palpitations, increased levels of serum uric acid are common.
Thrombocytopenia with or without purpura may require discontinuation of the drug. Neutropenia is transient, is not associated with increased susceptibility to infection, and ordinarily does not require discontinuation of the drug. Skin rash, headache, weakness, and malaise may also occur.
Array
Other adverse reactions which have been observed are:
Cardiovascular:
Hematologic:
Hepato-renal:
Array
What should I look out for while using Proglycem?
The use of PROGLYCEM for functional hypoglycemia is contraindicated. The drug should not be used in patients hypersensitive to diazoxide or to other thiazides unless the potential benefits outweigh the possible risks.
The antidiuretic property of diazoxide may lead to significant fluid retention, which in patients with compromised cardiac reserve, may precipitate congestive heart failure. The fluid retention will respond to conventional therapy with diuretics.
It should be noted that concomitantly administered thiazides may potentiate the hyperglycemic and hyperuricemic actions of diazoxide (See and ).
Ketoacidosis and nonketotic hyperosmolar coma have been reported in patients treated with recommended doses of PROGLYCEM usually during intercurrent illness. Prompt recognition and treatment are essential (See ), and prolonged surveillance following the acute episode is necessary because of the long drug half-life of approximately 30 hours. The occurrence of these serious events may be reduced by careful education of patients regarding the need for monitoring the urine for sugar and ketones and for prompt reporting of abnormal findings and unusual symptoms to the physician. Transient cataracts occurred in association with hyperosmolar coma in an infant, and subsided on correction of the hyper-osmolarity. Cataracts have been observed in several animals receiving daily doses of intravenous or oral diazoxide.
The development of abnormal facial features in four children treated chronically (>4 years) with PROGLYCEM for hypoglycemia hyperinsulinism in the same clinic has been reported.
Pulmonary Hypertension in Neonates and Infants
There have been postmarketing reports of pulmonary hypertension occurring in infants and neonates treated with diazoxide. The cases were reversible upon discontinuation of the drug. Monitor patients, especially those with risk factors for pulmonary hypertension, for respiratory distress and discontinue diazoxide if pulmonary hypertension is suspected.
What might happen if I take too much Proglycem?
An overdosage of PROGLYCEM causes marked hyperglycemia which may be associated with ketoacidosis. It will respond to prompt insulin administration and restoration of fluid and electrolyte balance. Because of the drug's long half-life (approximately 30 hours), the symptoms of overdosage require prolonged surveillance for periods up to seven days until the blood sugar level stabilizes within the normal range. One investigator reported successful lowering of diazoxide blood levels by peritoneal dialysis in one patient and by hemodialysis in another.
How should I store and handle Proglycem?
The ASMANEX HFA canister should only be used with the ASMANEX HFA actuator. The ASMANEX HFA actuator should not be used with any other inhalation drug product. Actuators from other products should not be used with the ASMANEX HFA canister.The canister should not be removed from the actuator because the correct amount of medication may not be discharged; the dose counter may not function properly; reinsertion may cause the dose counter to count down by 1 and discharge a puff.The correct amount of medication in each inhalation cannot be ensured after the labeled number of actuations from the canister has been used, even though the inhaler may not feel completely empty and may continue to operate. The inhaler should be discarded when the labeled number of actuations has been used (the dose counter will read "0").Store at controlled room temperature 20-25°C (68-77°F); excursions permitted to 15-30°C (59-86°F) [see USP Controlled Room Temperature].For best results, the canister should be at room temperature before use. Shake well and remove the cap from the mouthpiece of the actuator before using. Keep out of reach of children. Avoid spraying in eyes.Contents Under Pressure: Do not puncture. Do not use or store near heat or open flame. Exposure to temperatures above 120°F may cause bursting. Never throw container into fire or incinerator.The ASMANEX HFA canister should only be used with the ASMANEX HFA actuator. The ASMANEX HFA actuator should not be used with any other inhalation drug product. Actuators from other products should not be used with the ASMANEX HFA canister.The canister should not be removed from the actuator because the correct amount of medication may not be discharged; the dose counter may not function properly; reinsertion may cause the dose counter to count down by 1 and discharge a puff.The correct amount of medication in each inhalation cannot be ensured after the labeled number of actuations from the canister has been used, even though the inhaler may not feel completely empty and may continue to operate. The inhaler should be discarded when the labeled number of actuations has been used (the dose counter will read "0").Store at controlled room temperature 20-25°C (68-77°F); excursions permitted to 15-30°C (59-86°F) [see USP Controlled Room Temperature].For best results, the canister should be at room temperature before use. Shake well and remove the cap from the mouthpiece of the actuator before using. Keep out of reach of children. Avoid spraying in eyes.Contents Under Pressure: Do not puncture. Do not use or store near heat or open flame. Exposure to temperatures above 120°F may cause bursting. Never throw container into fire or incinerator.The ASMANEX HFA canister should only be used with the ASMANEX HFA actuator. The ASMANEX HFA actuator should not be used with any other inhalation drug product. Actuators from other products should not be used with the ASMANEX HFA canister.The canister should not be removed from the actuator because the correct amount of medication may not be discharged; the dose counter may not function properly; reinsertion may cause the dose counter to count down by 1 and discharge a puff.The correct amount of medication in each inhalation cannot be ensured after the labeled number of actuations from the canister has been used, even though the inhaler may not feel completely empty and may continue to operate. The inhaler should be discarded when the labeled number of actuations has been used (the dose counter will read "0").Store at controlled room temperature 20-25°C (68-77°F); excursions permitted to 15-30°C (59-86°F) [see USP Controlled Room Temperature].For best results, the canister should be at room temperature before use. Shake well and remove the cap from the mouthpiece of the actuator before using. Keep out of reach of children. Avoid spraying in eyes.Contents Under Pressure: Do not puncture. Do not use or store near heat or open flame. Exposure to temperatures above 120°F may cause bursting. Never throw container into fire or incinerator.The ASMANEX HFA canister should only be used with the ASMANEX HFA actuator. The ASMANEX HFA actuator should not be used with any other inhalation drug product. Actuators from other products should not be used with the ASMANEX HFA canister.The canister should not be removed from the actuator because the correct amount of medication may not be discharged; the dose counter may not function properly; reinsertion may cause the dose counter to count down by 1 and discharge a puff.The correct amount of medication in each inhalation cannot be ensured after the labeled number of actuations from the canister has been used, even though the inhaler may not feel completely empty and may continue to operate. The inhaler should be discarded when the labeled number of actuations has been used (the dose counter will read "0").Store at controlled room temperature 20-25°C (68-77°F); excursions permitted to 15-30°C (59-86°F) [see USP Controlled Room Temperature].For best results, the canister should be at room temperature before use. Shake well and remove the cap from the mouthpiece of the actuator before using. Keep out of reach of children. Avoid spraying in eyes.Contents Under Pressure: Do not puncture. Do not use or store near heat or open flame. Exposure to temperatures above 120°F may cause bursting. Never throw container into fire or incinerator.The ASMANEX HFA canister should only be used with the ASMANEX HFA actuator. The ASMANEX HFA actuator should not be used with any other inhalation drug product. Actuators from other products should not be used with the ASMANEX HFA canister.The canister should not be removed from the actuator because the correct amount of medication may not be discharged; the dose counter may not function properly; reinsertion may cause the dose counter to count down by 1 and discharge a puff.The correct amount of medication in each inhalation cannot be ensured after the labeled number of actuations from the canister has been used, even though the inhaler may not feel completely empty and may continue to operate. The inhaler should be discarded when the labeled number of actuations has been used (the dose counter will read "0").Store at controlled room temperature 20-25°C (68-77°F); excursions permitted to 15-30°C (59-86°F) [see USP Controlled Room Temperature].For best results, the canister should be at room temperature before use. Shake well and remove the cap from the mouthpiece of the actuator before using. Keep out of reach of children. Avoid spraying in eyes.Contents Under Pressure: Do not puncture. Do not use or store near heat or open flame. Exposure to temperatures above 120°F may cause bursting. Never throw container into fire or incinerator.The ASMANEX HFA canister should only be used with the ASMANEX HFA actuator. The ASMANEX HFA actuator should not be used with any other inhalation drug product. Actuators from other products should not be used with the ASMANEX HFA canister.The canister should not be removed from the actuator because the correct amount of medication may not be discharged; the dose counter may not function properly; reinsertion may cause the dose counter to count down by 1 and discharge a puff.The correct amount of medication in each inhalation cannot be ensured after the labeled number of actuations from the canister has been used, even though the inhaler may not feel completely empty and may continue to operate. The inhaler should be discarded when the labeled number of actuations has been used (the dose counter will read "0").Store at controlled room temperature 20-25°C (68-77°F); excursions permitted to 15-30°C (59-86°F) [see USP Controlled Room Temperature].For best results, the canister should be at room temperature before use. Shake well and remove the cap from the mouthpiece of the actuator before using. Keep out of reach of children. Avoid spraying in eyes.Contents Under Pressure: Do not puncture. Do not use or store near heat or open flame. Exposure to temperatures above 120°F may cause bursting. Never throw container into fire or incinerator.PROGLYCEM (diazoxide capsules, USP), 50 mg, half opaque orange and half clear capsules, branded in black with BNP 6000: bottle of 100 (NDC 0575-6000-01).PROGLYCEM suspension, 50 mg/mL, a chocolate-mint flavored suspension; bottle of 30 ml (NDC 0575-6200-30), with dropper calibrated to deliver 10, 20, 30, 40 and 50 mg diazoxide. Rx onlyDistributed by:Teva Pharmaceuticals USA, Inc.North Wales, PA 19454Rev. 03/2018PROGLYCEM (diazoxide capsules, USP), 50 mg, half opaque orange and half clear capsules, branded in black with BNP 6000: bottle of 100 (NDC 0575-6000-01).PROGLYCEM suspension, 50 mg/mL, a chocolate-mint flavored suspension; bottle of 30 ml (NDC 0575-6200-30), with dropper calibrated to deliver 10, 20, 30, 40 and 50 mg diazoxide. Rx onlyDistributed by:Teva Pharmaceuticals USA, Inc.North Wales, PA 19454Rev. 03/2018PROGLYCEM (diazoxide capsules, USP), 50 mg, half opaque orange and half clear capsules, branded in black with BNP 6000: bottle of 100 (NDC 0575-6000-01).PROGLYCEM suspension, 50 mg/mL, a chocolate-mint flavored suspension; bottle of 30 ml (NDC 0575-6200-30), with dropper calibrated to deliver 10, 20, 30, 40 and 50 mg diazoxide. Rx onlyDistributed by:Teva Pharmaceuticals USA, Inc.North Wales, PA 19454Rev. 03/2018PROGLYCEM (diazoxide capsules, USP), 50 mg, half opaque orange and half clear capsules, branded in black with BNP 6000: bottle of 100 (NDC 0575-6000-01).PROGLYCEM suspension, 50 mg/mL, a chocolate-mint flavored suspension; bottle of 30 ml (NDC 0575-6200-30), with dropper calibrated to deliver 10, 20, 30, 40 and 50 mg diazoxide. Rx onlyDistributed by:Teva Pharmaceuticals USA, Inc.North Wales, PA 19454Rev. 03/2018PROGLYCEM (diazoxide capsules, USP), 50 mg, half opaque orange and half clear capsules, branded in black with BNP 6000: bottle of 100 (NDC 0575-6000-01).PROGLYCEM suspension, 50 mg/mL, a chocolate-mint flavored suspension; bottle of 30 ml (NDC 0575-6200-30), with dropper calibrated to deliver 10, 20, 30, 40 and 50 mg diazoxide. Rx onlyDistributed by:Teva Pharmaceuticals USA, Inc.North Wales, PA 19454Rev. 03/2018PROGLYCEM (diazoxide capsules, USP), 50 mg, half opaque orange and half clear capsules, branded in black with BNP 6000: bottle of 100 (NDC 0575-6000-01).PROGLYCEM suspension, 50 mg/mL, a chocolate-mint flavored suspension; bottle of 30 ml (NDC 0575-6200-30), with dropper calibrated to deliver 10, 20, 30, 40 and 50 mg diazoxide. Rx onlyDistributed by:Teva Pharmaceuticals USA, Inc.North Wales, PA 19454Rev. 03/2018PROGLYCEM (diazoxide capsules, USP), 50 mg, half opaque orange and half clear capsules, branded in black with BNP 6000: bottle of 100 (NDC 0575-6000-01).PROGLYCEM suspension, 50 mg/mL, a chocolate-mint flavored suspension; bottle of 30 ml (NDC 0575-6200-30), with dropper calibrated to deliver 10, 20, 30, 40 and 50 mg diazoxide. Rx onlyDistributed by:Teva Pharmaceuticals USA, Inc.North Wales, PA 19454Rev. 03/2018
Clinical Information
Chemical Structure
No Image foundClinical Pharmacology
Diazoxide administered orally produces a prompt dose-related increase in blood glucose level, due primarily to an inhibition of insulin release from the pancreas, and also to an extrapancreatic effect.
The hyperglycemic effect begins within an hour and generally lasts no more than eight hours in the presence of normal renal function.
PROGLYCEM decreases the excretion of sodium and water, resulting in fluid retention which may be clinically significant.
The hypotensive effect of diazoxide on blood pressure is usually not marked with the oral preparation. This contrasts with the intravenous preparation of diazoxide (see ).
Other pharmacologic actions of PROGLYCEM include increased pulse rate; increased serum uric acid levels due to decreased excretion; increased serum levels of free fatty acids' decreased chloride excretion; decreased para-aminohippuric acid; (PAH) clearance with no appreciable effect on glomerular filtration rate.
The concomitant administration of a benzothiazide diuretic may intensify the hyperglycemic and hyperuricemic effects of PROGLYCEM. In the presence of hypokalemia, hyperglycemic effects are also potentiated.
PROGLYCEM-induced hyperglycemia is reversed by the administration of insulin or tolbutamide. The inhibition of insulin release by PROGLYCEM is antagonized by alpha-adrenergic blocking agents.
PROGLYCEM is extensively bound (more than 90%) to serum proteins, and is excreted in the kidneys. The plasma half-life following I.V. administration is 28 ± 8.3 hours. Limited data on oral administration revealed a half-life of 24 and 36 hours in two adults. In four children aged four months to six years, the plasma half-life varied from 9.5 to 24 hours on long-term oral administration. The half-life may be prolonged following overdosage, and in patients with impaired renal function.
Non-Clinical Toxicology
The use of PROGLYCEM for functional hypoglycemia is contraindicated. The drug should not be used in patients hypersensitive to diazoxide or to other thiazides unless the potential benefits outweigh the possible risks.The antidiuretic property of diazoxide may lead to significant fluid retention, which in patients with compromised cardiac reserve, may precipitate congestive heart failure. The fluid retention will respond to conventional therapy with diuretics.
It should be noted that concomitantly administered thiazides may potentiate the hyperglycemic and hyperuricemic actions of diazoxide (See and ).
Ketoacidosis and nonketotic hyperosmolar coma have been reported in patients treated with recommended doses of PROGLYCEM usually during intercurrent illness. Prompt recognition and treatment are essential (See ), and prolonged surveillance following the acute episode is necessary because of the long drug half-life of approximately 30 hours. The occurrence of these serious events may be reduced by careful education of patients regarding the need for monitoring the urine for sugar and ketones and for prompt reporting of abnormal findings and unusual symptoms to the physician. Transient cataracts occurred in association with hyperosmolar coma in an infant, and subsided on correction of the hyper-osmolarity. Cataracts have been observed in several animals receiving daily doses of intravenous or oral diazoxide.
The development of abnormal facial features in four children treated chronically (>4 years) with PROGLYCEM for hypoglycemia hyperinsulinism in the same clinic has been reported.
Pulmonary Hypertension in Neonates and Infants
There have been postmarketing reports of pulmonary hypertension occurring in infants and neonates treated with diazoxide. The cases were reversible upon discontinuation of the drug. Monitor patients, especially those with risk factors for pulmonary hypertension, for respiratory distress and discontinue diazoxide if pulmonary hypertension is suspected.
Since diazoxide is highly bound to serum proteins, it may displace other substances which are also bound to protein, such as bilirubin or coumarin and its derivatives, resulting in higher blood levels of these substances. Concomitant administration of oral diazoxide and diphenylhydantoin may result in a loss of seizure control. These potential interactions must be considered when administering PROGLYCEM Capsules or Suspension.
The concomitant administration of thiazides or other commonly used diuretics may potentiate the hyperglycemic and hyperuricemic effects of diazoxide.
Treatment with PROGLYCEM should be initiated under close clinical supervision, with careful monitoring of blood glucose and clinical response until the patient's condition has stabilized. This usually requires several days. If not effective in two to three weeks, the drug should be discontinued.
Prolonged treatment requires regular monitoring of the urine for sugar and ketones, especially under stress conditions, with prompt reporting of any abnormalities to the physician. Additionally, blood sugar levels should be monitored periodically by the physician to determine the need for dose adjustment.
The effects of diazoxide on the hematopoietic system and the level of serum uric acid should be kept in mind; the latter should be considered particularly in patients with hyperuricemia or a history of gout.
In some patients, higher blood levels have been observed with the oral suspension than with the capsule formulation of PROGLYCEM. Dosage should be adjusted as necessary in individual patients if changed from one formulation to the other.
Since the plasma half-life of diazoxide is prolonged in patients with impaired renal function, a reduced dosage should be considered. Serum electrolyte levels should also be evaluated for such patients.
The antihypertensive effect of other drugs may be enhanced by PROGLYCEM, and this should be kept in mind when administering it concomitantly with antihypertensive agents.
Because of the protein binding, administration of PROGLYCEM with coumarin or its derivatives may require reduction in the dosage of the anticoagulant, although there has been no reported evidence of excessive anticoagulant effect. In addition, PROGLYCEM may possibly displace bilirubin from albumin; this should be kept in mind particularly when treating newborns with increased bilirubinemia.
Pulmonary hypertension has been reported in neonates and young infants treated with diazoxide. (see )
Reference
This information is obtained from the National Institute of Health's Standard Packaging Label drug database.
"https://dailymed.nlm.nih.gov/dailymed/"
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