Procedures for Quality Testing of Pharmaceutical Products – PST05207 Quality Assurance of Pharmaceutical Products
NTA Level 5 • Semester 2 • PST05207 Procedures for Quality Testing of Pharmaceutical Products Quality Assurance of Pharmaceutical Products • Source Session/Topic 11 Full source-text version: all educational wording from the extracted learning source is retained; only presenter/tutor metadata and web-layout noise are removed, while formatting is improved for readability. Session 11: Procedures for Quality Testing of Pharmaceutical Products Total Session Time: 120 minutes Prerequisites • None Learning Tasks By the end of this session students are expected to be able to: • List methods commonly used for quality testing of pharmaceutical products from monographs • Explain procedures for carrying out physical quality tests for solid pharmaceutical dosage forms (Hardness, smell, colour, texture, thickness, diameter, friability, disintegration etc.) • Explain procedures for carrying out physical quality tests for liquid pharmaceutical dosage forms (pH, smell, colour, conductivity, osmolarity etc.) • Explain procedures for carrying out microbiological quality tests for pharmaceutical products (sterility tests, etc.) • Explain procedures for carrying out chemical qualitative tests (volumetric analysis, colour reaction, dissolution test etc.) • Explain procedures for carrying out chromatographic quality tests (TLC, etc.) Resources Needed: • Flip charts, marker pens, and masking tape • Black/white board and chalk/whiteboard markers • LCD projector and computer 79 PST 05207 Quality Assurance of Pharmaceutical Products NTA Level 5 Semester 2 SESSION OVERVIEW Activity/ Step Time Content Method 1 05 minutes Presentation Introduction, Learning Tasks 15 minutes Methods Commonly Used for Quality Presentation 2 Testing of Pharmaceutical Products from Buzzing Monographs 20 minutes Procedures for Carrying Out Physical Presentation and 3 Quality Tests for Solid Pharmaceutical Brainstorming Dosage Forms Procedures for Carrying Out Physical 4 20 minutes Presentation Quality Tests for Liquid Pharmaceutical Dosage Forms 15 minutes Procedures for Carrying Out 5 Presentation Microbiological Quality Tests for Pharmaceutical Products 15 minutes Presentation Procedures for Carrying Out Chemical 6 Qualitative Tests 20 minutes Presentation Procedures for Carrying Out 7 Chromatographic Quality Tests 8 05 minutes Presentation Key Points 9 05 minutes Presentation Evaluation 80 PST 05207 Quality Assurance of Pharmaceutical Products NTA Level 5 Semester 2 SESSION CONTENTS STEP 1: Presentation of Session Title and Learning Tasks (5 minutes) READ or ASK students to read the learning objectives and clarify ASK students if they have any questions before continuing. STEP 2: Methods Commonly Used for Quality Testing of Pharmaceutical Products from Monographs (15 minutes) Activity: Buzzing (5minutes) ASK students to pair up and buzz on the following questions for 2 minutes • What are various tests in quality testing of pharmaceutical products? ALLOW few pairs to respond and let other pairs add on points not mentioned WRITE their response on the flip chart/board CLARIFY and SUMMARIZE by using the content below • There are various tests involve in quality testing of pharmaceutical products, these includes • Physical quality tests for solid pharmaceutical dosage forms includes; o Hardness, o Smell, o Colour, o Texture, o Thickness, o Diameter, o Friability test, o Disintegration test • Chromatographic quality tests includes o Thin layer chromatography method-TLC o High-performance liquid chromatography (HPLC o Gas chromatography (GC) o Paper chromatography • Physical quality tests for liquid pharmaceutical dosage forms includes o pH, o Smell, o Colour, o Conductivity, o Osmolarity • Microbiological quality test include 81 PST 05207 Quality Assurance of Pharmaceutical Products NTA Level 5 Semester 2 o Sterility tests for pharmaceutical products o Chemical qualitative tests includes Volumetric analysis o Colour reaction, Dissolution test STEP 3: Procedures for Carrying out Physical Quality Tests for Solid Pharmaceutical Dosage Forms (20 minutes) Activity: Brainstorming (5 minutes) Ask students to brainstorm on the following question: • What is disintegration? ALLOW few students to respond WRITE their responses on the flip chart/ board CLARIFY and SUMMARISE by using the content below • Disintegration is the process where pharmaceutical solid dosage forms separate into parts or lose intactness or solidness and break up into particle or constituent under specified conditions • Disintegration time is the time required for a dosage form to break up in to granules of specified size (or smaller) under carefully specified conditions. • Disintegration Test- This test determines whether dosage forms such as tablets, capsules, pessaries and suppositories disintegrate within a prescribed time when placed in a liquid medium under the prescribed experimental conditions. For the purpose of this test, disintegration does not imply complete solution of the dosage unit or even of its active constituent. • Disintegration Apparatus consists of o A basket-rack assembly, o A 1-litre beaker, o A thermostatic arrangement for heating the fluid o Mechanical device for raising and lowering the basket in the immersion fluid at a constant frequency rate • Disintegration test procedures o 6 tablets from each batch are taken and subjected to the disintegration test. o One tablet is placed in the mesh screen at the bottom end of each of the 6 glass tubes, o Tap water is used as disintegration medium. Simulated gastric fluid. o The apparatus is maintained at a temperature of 37 ± 2°C. o Glass tube maintains up and down movement in and out of the basket containing 1000mls distilled water. the basket move through a distance of 5-6cm at a frequency of 28 to 32 cycles per minutes as specified by U.S.P 82 PST 05207 Quality Assurance of Pharmaceutical Products NTA Level 5 Semester 2 o Disintegration time of the each tablet is noted by means of a stopwatch and recorded. o Disintegration time does differ depending on the nature of the tablets e.g. uncoated, coated. Uncoated USP tablets have disintegration time as low as 5 minutes but majority have maximum disintegration time of 30 minutes. Disintegration test we start with 6 tablets if one or two tablets failed to disintegrate completely test should be repeated for additional 12 tablets the requirement met if not less than 16 of the total 18 are disintegrated. • Factors affecting the disintegration time o Content-especially the quality and quantity of the Disintergrants and lubricant. o Hardness .amount of binder, compression force. o Design of granulation procedure which will affect