DRUGS & SUPPLEMENTS
Insogen is an oral blood-glucose-lowering drug of the sulfonylurea class. Insogen, USP is a white, crystalline powder, that has a slight odor. It is practically insoluble in water, but is soluble in alcohol. Chemically, it is 4-chloro- N-[(propyl-amino)carbonyl] benzene sulfonamide which may be represented by the following structure:
Insogen is supplied as compressed tablets containing 100 mg or 250 mg of Insogen, USP and contains the following inactive ingredients: calcium carbonate, colloidal silicon dioxide, croscarmellose sodium, D&C Yellow No. 10 Aluminum Lake, FD&C Blue No. 1 Aluminum Lake, glycine, magnesium stearate, microcrystalline cellulose, and sodium lauryl sulfate.
Insogen appears to lower the blood glucose acutely by stimulating the release of insulin from the pancreas, an effect dependent upon functioning beta cells in the pancreatic islets. The mechanism by which Insogen lowers blood glucose during long-term administration has not been clearly established. Extrapancreatic effects may play a part in the mechanism of action of oral sulfonylurea hypoglycemic drugs. While Insogen is a sulfonamide derivative, it is devoid of antibacterial activity.
Insogen may also prove effective in controlling certain patients who have experienced primary or secondary failure to other sulfonylurea agents.
Insogen does not interfere with the usual tests to detect albumin in the urine.
Insogen is absorbed rapidly from the gastrointestinal tract. Within one hour after a single oral dose, it is readily detectable in the blood, and the level reaches a maximum within 2 to 4 hours. It undergoes metabolism in humans and it is excreted in the urine as unchanged drug and as hydroxylated or hydrolyzed metabolites. The biological half-life of Insogen averages about 36 hours. Within 96 hours, 80% to 90% of a single oral dose is excreted in the urine. However, long-term administration of therapeutic doses does not result in undue accumulation in the blood, since absorption and excretion rates become stabilized in about 5 to 7 days after the initiation of therapy.
Insogen exerts a hypoglycemic effect in healthy subjects within one hour, becoming maximal at 3 to 6 hours and persisting for at least 24 hours. The potency of Insogen is approximately 6 times that of tolbutamide. Some experimental results suggest that its increased duration of action may be the result of slower excretion and absence of significant deactivation.
INDICATIONS AND USAGE
Insogen tablets are indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus.
Insogen tablets are contraindicated in patients with:
SPECIAL WARNING ON INCREASED RISK OF CARDIOVASCULAR MORTALITY
The administration of oral hypoglycemic drugs has been reported to be associated with increased cardiovascular mortality as compared to treatment with diet alone or diet plus insulin. This warning is based on the study conducted by the University Group Diabetes Program (UGDP), a long-term prospective clinical trial designed to evaluate the effectiveness of glucose-lowering drugs in preventing or delaying vascular complications in patients with non-insulin-dependent diabetes. The study involved 823 patients who were randomly assigned to one of four treatment groups ( Diabetes, 19 [supp 2]:747-830, 1970).
UGDP reported that patients treated for 5 to 8 years with diet plus a fixed dose of tolbutamide (1.5 grams per day) had a rate of cardiovascular mortality approximately 2½ times that of patients treated with diet alone. A significant increase in total mortality was not observed, but the use of tolbutamide was discontinued based on the increase in cardiovascular mortality, thus limiting the opportunity for the study to show an increase in overall mortality. Despite controversy regarding the interpretation of these results, the findings of the UGDP study provide an adequate basis for this warning. The patient should be informed of the potential risks and advantages of Insogen and of alternative modes of therapy.
Although only one drug in the sulfonylurea class (tolbutamide) was included in this study, it is prudent from a safety standpoint to consider that this warning may also apply to other oral hypoglycemic drugs in this class, in view of their close similarities in mode of action and chemical structure.
There have been no clinical studies establishing conclusive evidence of macrovascular risk reduction with Insogen or any other antidiabetic drug.
All sulfonylurea drugs including Insogen are capable of producing severe hypoglycemia, which may result in coma, and may require hospitalization. Patients experiencing hypoglycemia should be managed with appropriate glucose therapy and be monitored for a minimum of 24 to 48 hours. Proper patient selection, dosage, and instructions are important to avoid hypoglycemic episodes. Regular, timely carbohydrate intake is important to avoid hypoglycemic events occurring when a meal is delayed or insufficient food is eaten or carbohydrate intake is unbalanced. Renal or hepatic insufficiency may affect the disposition of Insogen and may also diminish gluconeogenic capacity, both of which increase the risk of serious hypoglycemic reactions. Elderly, debilitated or malnourished patients, and those with adrenal or pituitary insufficiency are particularly susceptible to the hypoglycemic action of glucose-lowering drugs. Hypoglycemia may be difficult to recognize in the elderly, and in people who are taking beta-adrenergic blocking drugs. Hypoglycemia is more likely to occur when caloric intake is deficient, after severe or prolonged exercise, when alcohol is ingested, or when more than one glucose-lowering drug is used.
Because of the long half-life of Insogen, patients who become hypoglycemic during therapy require careful supervision of the dose and frequent feedings for at least 3 to 5 days. Hospitalization and intravenous glucose may be necessary.
Loss of Control of Blood Glucose
When a patient stabilized on any diabetic regimen is exposed to stress such as fever, trauma, infection, or surgery, a loss of control may occur. At such times, it may be necessary to discontinue Insogen and administer insulin.
The effectiveness of any oral hypoglycemic drug, including Insogen, in lowering blood glucose to a desired level decreases in many patients over a period of time, which may be due to progression of the severity of the diabetes or to diminished responsiveness to the drug. This phenomenon is known as secondary failure, to distinguish it from primary failure in which the drug is ineffective in an individual patient when first given. Adequate adjustment of dose and adherence to diet should be assessed before classifying a patient as a secondary failure.
Treatment of patients with glucose 6-phosphate dehydrogenase deficiency with sulfonylurea agents can lead to hemolytic anemia. Because Insogen belongs to the class of sulfonylurea agents, caution should be used in patients with G6PD deficiency and a non-sulfonylurea alternative should be considered. In post-marketing reports, hemolytic anemia has also been reported in patients who did not have known G6PD deficiency.
The safety and effectiveness of Insogen in patients aged 65 and over has not been properly evaluated in clinical studies. Adverse event reporting suggests that elderly patients may be more prone to developing hypoglycemia and/or hyponatremia when using Insogen. Although the underlying mechanisms are unknown, abnormal renal function, drug interaction and poor nutrition appear to contribute to these events.
Information for Patients
Patients should be informed of the potential risks and advantages of Insogen and of alternative modes of therapy. They should also be informed about the importance of adherence to dietary instructions, of a regular exercise program, and of regular testing of blood glucose.
The risks of hypoglycemia, its symptoms and treatment, and conditions that predispose to its development should be explained to patients and responsible family members. Primary and secondary failure should also be explained.
Patients should be instructed to contact their physician promptly if they experience symptoms of hypoglycemia or other adverse reactions.
Physician Counseling Information for Patients
In initiating treatment for type 2 diabetes, diet should be emphasized as the primary form of treatment. Caloric restriction and weight loss are essential in the obese diabetic patient. Proper dietary management alone may be effective in controlling the blood glucose and symptoms of hyperglycemia. The importance of regular physical activity should also be stressed, and cardiovascular risk factors should be identified and corrective measures taken where possible. Use of Insogen or other antidiabetic medications must be viewed by both the physician and patient as a treatment in addition to diet and not as a substitution or as a convenient mechanism for avoiding dietary restraint. Furthermore, loss of blood glucose control on diet alone may be transient, thus requiring only short-term administration of Insogen or other antidiabetic medications. Maintenance or discontinuation of Insogen or other antidiabetic medications should be based on clinical judgment using regular clinical and laboratory evaluations.
Blood glucose should be monitored periodically. Measurement of glycosylated hemoglobin should be performed and goals assessed by the current standard of care.
The following products can lead to hypoglycemia
The hypoglycemic action of sulfonylurea may be potentiated by certain drugs including non-steroidal anti-inflammatory agents and other drugs that are highly protein bound, salicylates, sulfonamides, chloramphenicol, probenecid, coumarins, monoamine oxidase inhibitors, and beta-adrenergic blocking agents. When such drugs are administered to a patient receiving Insogen, the patient should be observed closely for hypoglycemia. When such drugs are withdrawn from a patient receiving Insogen, the patient should be observed closely for loss of control.
A potential interaction between oral miconazole and oral hypoglycemic agents leading to severe hypoglycemia has been reported. Whether this interaction also occurs with intravenous, topical, or vaginal preparations of miconazole is not known.
In some patients, a disulfiram-like reaction may be produced by the ingestion of alcohol. Moderate to large amounts of alcohol may increase the risk of hypoglycemia.
The following products can lead to hyperglycemia
Certain drugs tend to produce hyperglycemia and may lead to loss of control. These drugs include the thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products,estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blocking drugs, and isoniazid.
When such drugs are administered to a patient receiving Insogen, the patient should be closely observed for loss of control.
When such drugs are withdrawn from a patient receiving Insogen, the patient should be observed closely for hypoglycemia.
Since animal studies suggest that the action of barbiturates may be prolonged by therapy with Insogen, barbiturates should be employed with caution.
Carcinogenesis, Mutagenesis, Impairment of Fertility
Studies with Insogen have not been conducted to evaluate carcinogenic or mutagenic potential.
Rats treated with continuous Insogen therapy for 6 to 12 months showed varying degrees of suppression of spermatogenesis at a dose level of 250 mg/kg. The extent of suppression seemed to follow that of growth retardation associated with chronic administration of high-dose Insogen in rats. The human dose of Insogen is 500 mg/day (300 mg/M 2). Six- and twelve-month toxicity work in the dog and rat, respectively, indicates the 150 mg/kg is well tolerated. Therefore, the safety margins based upon body-surface-area comparisons are 3 times human exposure in the rat and 10 times human exposure in the dog.
Teratogenic Effects. Pregnancy Category C
Animal reproductive studies have not been conducted with Insogen. It is also not known whether Insogen can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Insogen should be given to a pregnant woman only if the potential benefits justify the potential risk to the patient and fetus.
Because data suggest that abnormal blood glucose levels during pregnancy are associated with a higher incidence of congenital abnormalities, many experts recommend that insulin be used during pregnancy to maintain blood glucose levels as close to normal as possible.
Prolonged severe hypoglycemia has been reported in neonates born to mothers who were receiving a sulfonylurea drug at the time of delivery. This has been reported more frequently with the use of agents with prolonged half-lives. If Insogen is used during pregnancy, it should be discontinued at least one month before the expected delivery date and other therapies instituted to maintain blood glucose levels as close to normal as possible.
An analysis of a composite of two samples of human breast milk each taken 5 hours after ingestion of 500 mg of Insogen by a patient revealed a concentration of 5 mcg/mL. For reference, the normal peak blood level of Insogen after a single 250 mg dose is 30 mcg/mL. Therefore, it is not recommended that a woman breast-feed while taking this medication.
Use in Children
Safety and effectiveness in children have not been established.
Ability to Drive and Use Machines
The effect of Insogen on the ability to drive or operate machinery has not been studied. However, there is no evidence to suggest that Insogen may affect these abilities. Patients should be aware of the symptoms of hypoglycemia and take caution while driving and operating machinery.
Body as a Whole: Disulfiram-like reactions have rarely been reported with Insogen.
Central and Peripheral Nervous System: Dizziness and headache.
Hypoglycemia: See PRECAUTIONS and OVERDOSAGE.
Gastrointestinal: Gastrointestinal disturbances are the most common reactions; nausea has been reported in less than 5% of patients, and diarrhea, vomiting, anorexia, and hunger in less than 2%. Other gastrointestinal disturbances have occurred in less than 1% of patients including proctocolitis. They tend to be dose related and may disappear when dosage is reduced.
Liver/Biliary: Cholestatic jaundice may occur rarely; Insogen should be discontinued if this occurs. Hepatic porphyria and disulfiram-like reactions have been reported with Insogen.
Skin/Appendages: Pruritus has been reported in less than 3% of patients. Other allergic skin reactions, e.g., urticaria and maculopapular eruptions have been reported in approximately 1% or less of patients. These may be transient and may disappear despite continued use of Insogen; if skin reactions persist the drug should be discontinued.
As with other sulfonylureas, porphyria cutanea tarda and photosensitivity reactions have been reported.
Skin eruptions rarely progressing to erythema multiforme and exfoliative dermatitis have also been reported.
Hematologic Reactions:Leukopenia, agranulocytosis, thrombocytopenia, hemolytic anemia, aplastic anemia, pancytopenia, and eosinophilia have been reported with sulfonylureas.
Metabolic/Nutritional Reactions: Hypoglycemia. Hepatic porphyria and disulfiram-like reactions have been reported with Insogen.
Endocrine Reactions: On rare occasions, Insogen has caused a reaction identical to the syndrome of inappropriate antidiuretic hormone (ADH) secretion. The features of this syndrome result from excessive water retention and include hyponatremia, low serum osmolality, and high urine osmolality. This reaction has also been reported for other sulfonylureas.
Overdosage of sulfonylureas including Insogen can produce hypoglycemia. Mild hypoglycemic symptoms without loss of consciousness or neurologic findings should be treated aggressively with oral glucose and adjustments in drug dosage and/or meal patterns. Close monitoring should continue until the physician is assured that the patient is out of danger. Severe hypoglycemic reactions with coma, seizure, or other neurological impairment occur infrequently, but constitute medical emergencies requiring immediate hospitalization. If hypoglycemic coma is diagnosed or suspected, the patient should be given a rapid intravenous injection of concentrated (50%) glucose solution. This should be followed by a continuous infusion of a more dilute (10%) glucose solution at a rate that will maintain the blood glucose at a level above 100 mg/dL. Patients should be closely monitored for a minimum of 24 to 48 hours since hypoglycemia may recur after apparent clinical recovery.
DOSAGE AND ADMINISTRATION
There is no fixed dosage regimen for the management of type 2 diabetes with Insogen or any other hypoglycemic agent. The patient’s blood glucose must be monitored periodically to determine the minimum effective dose for the patient; to detect primary failure, i.e., inadequate lowering of blood glucose at the maximum recommended dose of medication; and to detect secondary failure, i.e., loss of an adequate blood glucose lowering response after an initial period of effectiveness. Glycosylated hemoglobin levels may also be of value in monitoring the patient’s response to therapy.
Short-term administration of Insogen may be sufficient during periods of transient loss of control in patients usually controlled well on diet.
The total daily dosage is generally taken at a single time each morning with breakfast. Occasionally cases of gastrointestinal intolerance may be relieved by dividing the daily dosage. A LOADING OR PRIMING DOSE IS NOT NECESSARY AND SHOULD NOT BE USED.
Many mild to moderately severe, middle-aged, stable type 2 diabetes patients receiving insulin can be placed directly on the oral drug and their insulin abruptly discontinued. For patients requiring more than 40 units of insulin daily, therapy with Insogen may be initiated with a 50% reduction in insulin for the first few days, with subsequent further reductions dependent upon the response.
During the initial period of therapy with Insogen, hypoglycemic reactions may occasionally occur, particularly during the transition from insulin to the oral drug. Hypoglycemia within 24 hours after withdrawal of the intermediate or long-acting types of insulin will usually prove to be the result of insulin carry-over and not primarily due to the effect of Insogen.
During the insulin withdrawal period, the patient should self-monitor glucose levels at least 3 times daily. If they are abnormal, the physician should be notified immediately. In some cases, it may be advisable to consider hospitalization during the transition period.
Five to 7 days after the initial therapy, the blood level of Insogen reaches a plateau. Dosage may subsequently be adjusted upward or downward by increments of not more than 50 mg to 125 mg at intervals of 3 to 5 days to obtain optimal control. More frequent adjustments are usually undesirable.
Most moderately severe, middle-aged, stable type 2 diabetes patients are controlled by approximately 250 mg daily. Many investigators have found that some milder diabetics do well on daily doses of 100 mg or less. Many of the more severe diabetics may require 500 mg daily for adequate control. PATIENTS WHO DO NOT RESPOND COMPLETELY TO 500 MG DAILY WILL USUALLY NOT RESPOND TO HIGHER DOSES. MAINTENANCE DOSES ABOVE 750 MG DAILY SHOULD BE AVOIDED.
Insogen Tablets, USP are available containing either 250 mg of Insogen, USP.
The 250 mg tablets are green round, scored tablets debossed with MYLAN above the score and 210 below the score on one side of the tablet and 250 on the other side. They are available as follows:
bottles of 90 tablets
Store at 20° to 25°C (68° to 77°F).
Protect from light.
Dispense in a tight, light-resistant container as defined in the USP using a child-resistant closure.
PRINCIPAL DISPLAY PANEL - 250 mg
Each tablet contains:
Insogen, USP 250 mg
Dispense in a tight, light-resistant
container as defined in the USP
using a child-resistant closure.
Keep container tightly closed.
Keep this and all medication
out of the reach of children.
Store at 20° to 25°C (68° to 77°F).
[See USP Controlled Room
Protect from light.
Dosage: See accom-
panying prescribing information.
Insogen pharmaceutical active ingredients containing related brand and generic drugs:
Active ingredient is the part of the drug or medicine which is biologically active. This portion of the drug is responsible for the main action of the drug which is intended to cure or reduce the symptom or disease. The other portions of the drug which are inactive are called excipients; there role is to act as vehicle or binder. In contrast to active ingredient, the inactive ingredient's role is not significant in the cure or treatment of the disease. There can be one or more active ingredients in a drug.
Insogen available forms, composition, doses:
Form of the medicine is the form in which the medicine is marketed in the market, for example, a medicine X can be in the form of capsule or the form of chewable tablet or the form of tablet. Sometimes same medicine can be available as injection form. Each medicine cannot be in all forms but can be marketed in 1, 2, or 3 forms which the pharmaceutical company decided based on various background research results.
Composition is the list of ingredients which combinedly form a medicine. Both active ingredients and inactive ingredients form the composition. The active ingredient gives the desired therapeutic effect whereas the inactive ingredient helps in making the medicine stable.
Doses are various strengths of the medicine like 10mg, 20mg, 30mg and so on. Each medicine comes in various doses which is decided by the manufacturer, that is, pharmaceutical company. The dose is decided on the severity of the symptom or disease.
Insogen destination | category:
Destination is defined as the organism to which the drug or medicine is targeted. For most of the drugs what we discuss, human is the drug destination.
Drug category can be defined as major classification of the drug. For example, an antihistaminic or an antipyretic or anti anginal or pain killer, anti-inflammatory or so.
Insogen Anatomical Therapeutic Chemical codes:
A medicine is classified depending on the organ or system it acts [Anatomical], based on what result it gives on what disease, symptom [Therapeutical], based on chemical composition [Chemical]. It is called as ATC code. The code is based on Active ingredients of the medicine. A medicine can have different codes as sometimes it acts on different organs for different indications. Same way, different brands with same active ingredients and same indications can have same ATC code.
Insogen pharmaceutical companies:
Pharmaceutical companies are drug manufacturing companies that help in complete development of the drug from the background research to formation, clinical trials, release of the drug into the market and marketing of the drug.
Researchers are the persons who are responsible for the scientific research and is responsible for all the background clinical trials that resulted in the development of the drug.
Frequently asked QuestionsCan i drive or operate heavy machine after consuming Insogen?
Depending on the reaction of the Insogen after taken, if you are feeling dizziness, drowsiness or any weakness as a reaction on your body, Then consider Insogen not safe to drive or operate heavy machine after consumption. Meaning that, do not drive or operate heavy duty machines after taking the capsule if the capsule has a strange reaction on your body like dizziness, drowsiness. As prescribed by a pharmacist, it is dangerous to take alcohol while taking medicines as it exposed patients to drowsiness and health risk. Please take note of such effect most especially when taking Primosa capsule. It's advisable to consult your doctor on time for a proper recommendation and medical consultations.Is Insogen addictive or habit forming?
Medicines are not designed with the mind of creating an addiction or abuse on the health of the users. Addictive Medicine is categorically called Controlled substances by the government. For instance, Schedule H or X in India and schedule II-V in the US are controlled substances.
Please consult the medicine instruction manual on how to use and ensure it is not a controlled substance.In conclusion, self medication is a killer to your health. Consult your doctor for a proper prescription, recommendation, and guidiance.
Reviewsdrugs.com conducted a study on Insogen, and the result of the survey is set out below. It is noteworthy that the product of the survey is based on the perception and impressions of the visitors of the website as well as the views of Insogen consumers. We, as a result of this, advice that you do not base your therapeutic or medical decisions on this result, but rather consult your certified medical experts for their recommendations.
Visitor reported usefulNo survey data has been collected yet
Visitor reported side effectsNo survey data has been collected yet
Visitor reported price estimatesNo survey data has been collected yet
Visitor reported frequency of useNo survey data has been collected yet
One visitor reported dosesWhat is the dose of Insogen drug you are taking?
According to the survey conducted among sdrugs.com website users, the maximum number of people are using the following dose 1-5mg. Few medications come in only one or two doses. Few are specific for adult dose and child dose. The dose of the medicine given to the patient depends on the severity of the symptom/disease. There can be dose adjustments made by the doctor, based on the progression of the disease. Follow-up is important.
Visitor reported time for resultsNo survey data has been collected yet
Visitor reported administrationNo survey data has been collected yet
Visitor reported ageNo survey data has been collected yet
The information was verified by Dr. Arunabha Ray, MD Pharmacology