Herbal Drug Standardization: Quality, Safety, and Compliance
1. Introduction to Herbal Drug Standardization
Herbal drug standardization ensures the quality, safety, efficacy, and consistency of herbal formulations through authentication, botanical evaluation, and chemical profiling.
Definition and Importance
Standardization is the process of prescribing a set of inherent characteristics, constant parameters, and definitive qualitative/quantitative values to ensure the quality of herbal medicine. It is essential for maintaining identity, purity, safety, and consistency
Read MoreLaboratory Sterilization and pH Measurement Equipment
Autoclave Sterilization
The laboratory apparatus designed to use steam under regulated pressure to achieve sterilization is called an autoclave.
Principle of Autoclave Operation
Water boils at 100°C under normal atmospheric pressure. If the atmospheric pressure is raised, the boiling temperature for water will also rise. If the steam pressure inside a closed vessel is increased to 15 psi, the temperature can reach 121.6°C. An autoclave is a device that can maintain saturated steam at a designated
Read MorePediatric Medication Dosage Calculation Practice
1. Tylenol Dosage Calculation
Order: 115 mg Tylenol Elixir.
Available: 80 mg/mL concentration.
- a) Volume to draw up: 1.44 mL (115 mg / 80 mg/mL = 1.4375 mL).
- b) Safety check: The safe dose is 10–15 mg/kg. The child weighs 20 lbs (9.1 kg). The safe range is 91–136.5 mg per dose. Yes, the order is safe.
2. Gentamycin Dosage and Concentration
Order: 60 mg IV q4h.
Available: 80 mg / 2 mL.
- a) Volume to draw up: 1.5 mL (60 mg / 80 mg * 2 mL = 1.5 mL).
- b) Final concentration in 50 mL bag: 1.2 mg/mL (60 mg /
Principles of Fluid Mechanics and Particle Size Reduction
Fluid Mechanics Fundamentals
A fluid is a substance that continually deforms (flows) under an applied shear stress.
Types of Fluids
- Ideal fluid: An imaginary, incompressible fluid with zero viscosity that does not exist in reality.
- Real fluid: All fluids that possess viscosity.
- Newtonian fluid: Fluids that obey Newton’s law of viscosity.
- Non-Newtonian fluid: Fluids that do not obey Newton’s law of viscosity.
- Ideal plastic fluid: Fluids where shear stress is proportional to the velocity gradient, provided
Pharmaceutical Heat Transfer, Drying and Size Reduction FAQ
1. Reynolds Number and Importance
1. What is Reynolds number? Give its importance. Reynolds number is a dimensionless number used to predict flow patterns in fluid dynamics. It is the ratio of inertial forces to viscous forces. A low Reynolds number indicates laminar flow, while a high number indicates turbulent flow. It helps in designing and analyzing fluid flow systems.
2. Heat Exchangers and Types
2. What are heat exchangers? Give their types. Heat exchangers are devices used to transfer heat between
Read MorePharmacy Evolution in India: History and Practice
History and Development of Pharmacy in India
1. Ancient Period (Before 1000 AD)
The origin of pharmacy in India traces back to the Vedic period. Medicines were primarily prepared from plants, minerals, and animal products.
Ayurvedic System
Ayurveda is India’s oldest medical system.
- Drugs were prepared in forms such as churna (powders), kwatha (decoctions), asava–arishta (fermented preparations), taila (oils), and ghrita (ghee-based medicines).
Important Classical Texts:
- Charaka Samhita – Focuses mainly