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135062-02-1 Usage

Brand name

Prandin (Novo Nordisk).


1. Anti-diabetic medicine. Oral non-sulfonylurea hypoglycemic agent, for the treatment of typeⅡdiabetes.
2. Used as hypolycemic agent.


1. Like most other oral hypoglycemic drugs promoting insulin secretion, repaglinide can cause hypoglycemia. When used in combination with metformin, it may increase the risk of hypoglycemia. If after the treatment of combined medication it still sustained high blood glucose, oral hypoglycemic drugs can no longer be used to control blood sugar, and insulin treatment is needed. In the event of stress reaction, such as having a fever, trauma, infection or surgery, it may appear hyperglycemia.
2. As with other oral hypoglycemic agents, patients must use it with caution, to avoid hypoglycemia while driving.
3. Medication overdose may cause hypoglycemia, such as dizziness, sweating, tremor, headache, etc. In response to these reactions, effective measures should be taken to correct hypoglycemia, such as oral sugars. More severe hypoglycemia associated with epilepsy, loss of consciousness or coma, should be intravenous infusion of glucose.
4. Hypoglycemic effect of repaglinide will due to enhanced when in combined use with monoamine oxidase inhibitor (MAOI), non-selective β blockers, angiotensin converting enzyme inhibitor (ACEI), non-steroidal anti-inflammatory drugs, salicylate, octreotide, ethanol and hormones that promote the synthesis of metabolism.
5. It will weaken the hypoglycemic effect when in combination use of oral contraceptives, thiazide drug, corticosteroids, danazol, thyroid hormone and sympathomimetic drug.
6. CYP3A4 inhibitors (such as ketoconazole, itraconazole, and fluconazole), erythromycin and M Bifadier may elevate plasma levels of this product.
7. For drugs able to induce CYP3A4, such as rifampicin or phenytoin, it may reduce the plasma level of this product.

Chemical properties

White crystalline powder, odorless. Crystallization from ethanol-water (2:1), melting point 126-128℃. Crystallization from neutral water, melting point 130~131℃. [α]D20+6.97℃ (C=0.975, methanol); [α]D20+7.45°(C=1.06, methanol). Acute toxicity LD50. Rat (g/kg): > 1 oral.


The R-enantiomer showed only weak hypoglycemic activity. Repaglinide impurity


(1) After oral administration, this medicine would be absorbed rapidly; when fed in 2mg to vein at constant speed for 15min, distribution volumes of steady state and clearance phase were respectively 24.37L and 28.89L. Healthy people taking different doses of this product, cmax and AUC showed a dose-dependent increase, but their cmax is similar; a single dose of 2mg, cmax is 15.2~15.5 mg/ml and t1/2 is 0.6 to 0.7h.
98% of this product is metabolized by liver cytochrome P4503A, with 90% of the metabolic products excreted by the bile via feces, and the rest 8% of the metabolites excreted by the kidney. The plasma protein binding rate was 97%, which had no significant accumulation.
(2) In intravenous injection, its clearance half-life is 0.6 (1.4~0.5) h, plasma clearance rate is 33 (57~15) L h-1 and the apparent distribution volume is 28.9L.
Oral administration of repaglinide has a rapid and complete absorption, either in fasting or eating, it would be well absorbed. Plasma peak achieved after 30~60min, and the half-life was approximately 1h. It would be almost metabolized and eliminated in 4h, and the apparent distribution volume of the steady-state is 0.4L•kg-1. The absolute bioavailability is 63%. The main metabolites are dicarboxylic acid derivative (M1) and glycuronic acid (M7), both are non-hypoglycemic activity. Studies have shown that healthy subjects at different ages (18 to 40 year old adults and elderly people over the age of 65) taking 2.0mg single dose repaglinide or repeatedly after medication, the AUC, cmax, tmax and t1/2 would have no significant difference. Its incidence of tolerance and hypoglycemia are the same, and its pharmacokinetics and pharmacodynamics are quite similar. Amount-effect relationship of single or multiple medication for healthy subjects and patients with typeⅡdiabetes shows that repaglinide plasma cmax is dose dependent.
After single or multiple dosing, for patients with typeⅡdiabetes and healthy subjects, the pharmacokinetic parameters are consistent. No significant difference between different ethnic groups.
For patients with severe renal impairment, after 7d taking 2.0 mg single dose repaglinide, the clearance rate constant decreases. But compared with healthy subjects, after administration of a single dose or multiple doses of repaglinide, the AUC significantly increased, without significant difference to Cmax and Tmax. Hemodialysis has no significant effect on clearance of repaglinide.

Adverse reaction

Same as other hypoglycemic drugs, taking repaglinide may occur following adverse reactions:
1. Hypoglycemia: these reactions are usually mild, and to be easily corrected by giving sugar. If it is more severe, glucose can be transfused.
2. Anomalopia: It has been known that changes in blood glucose levels can lead to transient anomalopia, especially at the beginning of treatment. Only a few cases reported above mentioned anomalopia occured at the beginning treatment of repaglinide, but in clinical trials there is no case stopped using repaglinide due to this reason.
3. Gastrointestinal tract: clinical trials have reported gastrointestinal reactions, such as abdominal pain, diarrhea, nausea, vomiting and constipation. Compared with other oral hypoglycemic agents, the frequency and severity of these symptoms were not different.
4. Liver enzyme system: there were rare cases reported elevated liver enzyme index during repaglinide treatment. Most cases were mild and transient, and very few patients discontinued repaglinide treatment due to increased liver enzyme index.
5. Anaphylactic reaction: can occur in the skin allergic reactions, such as itching, redness, urticaria, etc. Because of the different chemical structure, there is no reason to suspect the possibility of cross allergic reaction with sulfonylureas.  
Studies have not been carried out in pregnant or lactating women, so the pregnancy and lactation women are prohibited to use this product.

Production method

Convert the compounds (Ⅰ) to their N-acetyl derivatives, with L-glutamate to get salt and then get (S) shaped optical isomer; react with the compounds (Ⅱ) to form amide (Ⅲ) and then hydrolyzed to obtain the product.


A KIR6 (KATP) channel blocker

Biological Activity

K ATP channel blocker that binds with high affinity for SUR1 when co-expressed with Kir6.2 (K d = 0.42 nM). Antidiabetic glucose regulator with hypoglycaemic effect in vivo .



Dosage and administration

Tablet: 0.5mg, 1.0mg and 2.0mg. Repaglinide (trade name: NovoNorm) should be taken before main meals (i.e. medicine taken before meals). It would start to promote insulin secretion after 30 minutes of oral administration. Generally speaking the medicine should be taken within 15 minutes before the meal, and the time can also be mastered within 0 to 30 minutes before the meal. Please take repaglinide as directed. Doses vary from person to person and depend on their blood glucose. The recommended starting dose is 0.5mg, which can be adjusted every week or every two weeks as necessary. Patients under treatment of other oral hypoglycemic medicines can be directly transferred to repaglinide treatment, and the recommended starting dose is 1mg. The maximum recommended dose for a single dose is 4mg, taking with meals. But the maximum daily dose should not exceed 16mg. For patients with debilitating and malnutrition, the dose should be carefully adjusted. If combined with metformin, repaglinide dose should be reduced. Although repaglinide is mainly by biliary excretion, renal insufficiency patients still should use with caution.

Clinical assessment

By detecting the level of glycosylated hemoglobin (HbAlc), fasting blood glucose (FBG) and postprandial blood glucose (PPBG), it was confirmed that the blood glucose control in patients with typeⅡdiabetes can be significantly better improved compared with placebo. Several clinical trials are outlined below: studies show that for patients with type II diabetes, compared with placebo, it can reduce FBG and PPBG respectively 4mmol/L and 6mmol/L, and also reduce 2% of HbAlc. Control experiments with glibenclamide showed that repaglinide can significantly reduce PPBG, FBG and fasting C peptide level (P < 0.05), while glibenclamide only significantly reduced FBG (P < 0.01), with no effect on PPBG and a significant increase in C peptide levels (P < 0.05). The change of C peptide level showed that the product had protective effect on the function of islet β cell.
Test with 048/DK/N/S/SF was conducted to compare 1 year treatment between this product and sulfonylurea drug.The results showed that HbAlc and FBG level changes of the treatment group are 0.19% and 0.5 mmol/L respectively, while glipizide group were 0.78% and 1.3mmol/L respectively, and plasma insulin levels in the patients decreased significantly; 053/AUS clinical trials showed when this product was used with metformin in the treatment of type II diabetes, it had a synergistic effect in glycemic control, and HbAlc and FBG were also significantly improved. After 3 month treatment, about 20% of the patients received good glycemic control with the single use of the product and the single use of metformin, while 25% of them had poor control of the blood glucose. In the combined treatment group, 60% patients obtained good blood sugar control, and not any of those patients was in poor blood glucose control. The product was well tolerated, and the risk of hypoglycemia was lower than that of the application of sulfonylureas, and there was no severe hypoglycemia. This product is also applicable to the special patient population such as the elderly or patients with mild liver and kidney damage.
Randomized, double-blind, controlled study of 120 patients was conducted in a period of 12 weeks, among which 68 cases in treatment group, orally taking 0.5mg or 1mg repaglinide 15min before meals, 52 cases in the control group, orally taking 1.25mg glipizide before breakfas. The results showed that the two dose groups in the treatment group can reduce fasting blood glucose (FBG) 2.1mmol/L and 3.6 mmol/L respectively; glycosylated hemoglobin Alc(HbG) were reduced by 1.6% and 1.9% respectively, and postprandial 2h plasma glucose (PPG) were reduced by 3.6 and 5.1 mmol/L respectively.
In the control group, FPG was decreased by 0.8mmol/L, and HbG was decreased by 1%. There were significant differences between the 2 groups.


Non-sulfonylurea oral hypoglycemic agent. Used as an antidiabetic

Chemical Properties

White to Off-White Solid

Diabetes Treatment

Repaglinide, a type of medicines for treating diabetes, is insulinotropic agent which belongs to the non-sulfonylurea. It was developed by Boehringer Ingelheim from Germany, and won approval by FDA from the United States in December 1997. In 1998, it was successively listed in the United States and European countries, with commodity name as NovoNorm. Mainly used in the clinical treatment of typeⅡdiabetes (non-insulin-dependent) patients whose hyperglycemia can’t be effectively controlled via diet, weight loss and exercise.
In 2008, FDA from the United States approved it going public for Novo Nordisk of replaglinide + metformin HCl, PrandiMet, for treatment of type 2 diabetes.
From the point of chemical structure, repaglinide derives from carbamyl methyl benzoic acid, and is a prandial glucose regulator which promots insulin secretion rapidly within short time. The functional mechanism is mainly by closing the potassium channels on the β cell membrane, causing calcium influx, and then intracellular calcium concentration increases, thereby stimulating insulin secretion. But with different acceptor sites of sulfonylurea reaction, the drug does not enter into the β cells, and it neither inhibits protein synthesis nor directly causes insulin action. With rapid absorption and metabolism, peak and half-life of this drug are approximately 1 hour. After taking the drug, the plasma insulin concentration rapidly increases, resulting in a significant decrease in blood glucose. Therefore, this product should be taken during the meal, not to eat not to take, which is the so-called “prandial glucose regulator ". Each dose is 0.25g and 2g. Flexible medication can reduce hypoglycemia caused by missing meals or delayed meal. After half a year medication, it can reduce postprandial blood sugar 6mmol/L, fasting blood-glucose 4mmol/L and HbAlc2%; when compared with placebo, it can better improve blood glucose control. Repaglinide is as effective as metformin on obese patients with type 2 diabetes blood glucose; effect of combined use with metformin is better than when it is used alone. Safety studies showed no severe hypoglycemia and liver damage, few drug interactions, and patients were well tolerated.
Treatment of diabetic drug repaglinide clinical evaluation, adverse reactions, precautions was edited by Tongtong from Chemicalbook.

135062-02-1 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
USP (1600813)  Repaglinide  United States Pharmacopeia (USP) Reference Standard 135062-02-1 1600813-200MG 4,662.45CNY Detail
Sigma (R9028)  Repaglinide  ≥98% (HPLC), solid 135062-02-1 R9028-250MG 6,885.45CNY Detail
Sigma (R9028)  Repaglinide  ≥98% (HPLC), solid 135062-02-1 R9028-50MG 1,724.58CNY Detail
Sigma-Aldrich (Y0000458)  Repaglinide for system suitability  European Pharmacopoeia (EP) Reference Standard 135062-02-1 Y0000458 1,880.19CNY Detail
Sigma-Aldrich (Y0000457)  Repaglinide  European Pharmacopoeia (EP) Reference Standard 135062-02-1 Y0000457 1,880.19CNY Detail
TCI America (R0179)  Repaglinide  >98.0%(HPLC)(T) 135062-02-1 1g 2,390.00CNY Detail
TCI America (R0179)  Repaglinide  >98.0%(HPLC)(T) 135062-02-1 200mg 760.00CNY Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 10, 2017

Revision Date: Aug 10, 2017


1.1 GHS Product identifier

Product name Repaglinide

1.2 Other means of identification

Product number -
Other names (S)-2-Ethoxy-4-(2-((3-methyl-1-(2-(piperidin-1-yl)phenyl)butyl)amino)-2-oxoethyl)benzoic acid

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:135062-02-1 SDS

135062-02-1Related news

Characteristics of Repaglinide (cas 135062-02-1) effects on insulin secretion08/09/2019

The dynamics of insulin secretion stimulated by repaglinide, a glinide, and the combinatorial effects of repaglinide and incretin were investigated. At 4.4 mM glucose, repaglinide induced insulin secretion with a gradually increasing first phase, showing different dynamics from that induced by g...detailed

The Structural Basis for the Binding of Repaglinide (cas 135062-02-1) to the Pancreatic KATP Channel08/08/2019

SummaryRepaglinide (RPG) is a short-acting insulin secretagogue widely prescribed for the treatment of type 2 diabetes. It boosts insulin secretion by inhibiting the pancreatic ATP-sensitive potassium channel (KATP). However, the mechanisms by which RPG binds to the KATP channel are poorly under...detailed

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