What does stability indicating mean?

A Stability-indicating assay method can be defined as “Validated quantitative analytical method that can detect the change with time in the chemical, physical or microbiological properties of the drug substance and drug products are specific so that the content of active ingredients and degradation products can be …

How do you develop stability indicating HPLC method?

The stability-indicating method was developed by exposing the drugs to stress conditions of acid and base hydrolysis, oxidation, photodegradation, and thermal degradation; the obtained degraded products were successfully separated from the APIs.

What is stability in method validation?

According to FDA guidelines (Guidance for Industry, Analytical Procedures and Methods Validation, FDA, 2000), a Stability Indicating Method (SIM) is defined as a validated analytical peptide testing procedure that accurately and precisely measure active ingredients (drug substance or drug product) free from process …

What is mass balance in HPLC?

Mass balance correlates the measured loss of a parent drug to the measured increase in the amount of degradation products.

What is Rh in stability testing?

RH = relative humidity. Table 3. Mean climatic conditions: calculated data and derived storage conditions1. Calculated data. Derived storage conditions.

What is HPLC stability?

Stability indicating HPLC methods are used to separate various drug related impurities that are formed during the synthesis or manufacture of drug product. This article discusses the strategies and issues regarding the development of stability indicating HPLC system for drug substance.

What is LoD and LoQ?

Summary. Limit of Blank (LoB), Limit of Detection (LoD), and Limit of Quantitation (LoQ) are terms used to describe the smallest concentration of a measurand that can be reliably measured by an analytical procedure.

What are the different types of impurities?

Below, we provide a more in-depth look at each of these three types of impurities.

• Organic Impurities. Organic impurities are often process-related or drug-related pharmaceutical impurities.
• Inorganic Impurities. Inorganic impurities often derive from the manufacturing process.
• Residual Solvents.

Why HCl is used in forced degradation?

It is customary to use 1N HCl and/or 1 N NaOH as degradants is FD studies because these are simple and ‘strong’ oxidizing/reducing reagents; furthermore, they are both mono-protic/hydroxyl and do not present additional side reactions that inhere with poly-ionic reagents.

What is ICH guideline?

ICH guidelines are a set of guidances to ensure safe, effective and high-quality medicines are developed and registered efficiently. These guidelines have been adopted by regulatory authorities throughout the world.

What is Zone IVb stability conditions?

Zone IVb. Hot/higher humidity. These stability studies zones are created due to the difference in temperature and humidity in different parts of the world. These zones have different ICH stability conditions for pharmaceutical products.

How is purity calculated from HPLC?

By subtracting the standard addition area of the neat area you will get a one point calibration which in turn you can use to determine the purity of the neat product.

Why is LOQ higher than LOD?

Typically, LoQ will be found at a higher concentration than LoD, but how much higher depends on the specifications for bias and imprecision used to define it. ‘Analytical sensitivity’ defined as the slope of the calibration curve is sometimes used as a synonym for LoD.

What is Lloq and ULOQ?

The analytical measuring range is defined by the lower limit of quantification (LLOQ) and upper limit of quantification (ULOQ).

What are the 2 types of impurity?

1.2 Types of impurities Impurities, present in various textiles, are of two types: natural and added. Natural fibres like cotton, wool, silk, etc., are grown under natural conditions, during which these fibres acquire natural impurities like dirt, dust, minerals, fatty matters, etc.

What is identification threshold for impurities?

The identification threshold is the level at which an impurity must be structurally identified. The qualification threshold is the level at which the impurity in the drug product must be qualified for safety.

What is the difference between forced degradation and stress testing?

Forced degradation is also known as stress testing and a drug is degraded forcefully by applying artificial methods. It is a useful tool to predict the stability of any Active Pharmaceutical Ingredient (API) or formulation product.

How to determine meglumine in solid dosage forms using HPLC?

The method using anionic pairing reagent in the mobile phase was shown to be suitable for the quantitative determination of meglumine in solid dosage forms. The HPLC separation was achieved on an Agilent Eclipse XDB-C18 column (150 mm x 4.6 mm, 3.5 microm particle size) using a mobile phase with octane-1-sulfonic acid.

What is meglumine?

Meglumine is an amino sugar derived from sorbitol for THP-1 cells with IC50 of 22 μg/mL. Meglumine is an amino sugar derived from sorbitol for THP-1 cells with IC50 of 22 μg/mL.

Is meglumine impurity profile in aqueous solution useful for drug formulation?

Although the use of meglumine in drug formulation has been extensively exploited to increase drug solubility in aqueous solution due to the presence of a large number of hydroxyl groups without affecting drug activity [10], [11], to the best of our knowledge, there is a lack of methods able to easily assess its impurity profile.

Are nitrogen and glucose by-products impurities present in commercially meglumine samples?

Although meglumine is widely used as excipient in several pharmaceutical formulations, impurity profile due to nitrogen and glucose by-products has not been deeply investigated so far. This study helped to identify and quantify these impurities present in traces in commercially meglumine samples.