Pharmaceutical Suspensions: Types, Formulation Principles Practical Examples

Introduction 

A suspension in pharmaceutics is a dosage form that contains suspended solid particles which do not dissolve in a liquid medium. The formulation design process requires pharmacists to understand the different suspension types used in their field. 

Definition of Suspension in Pharmaceutics 

A suspension in pharmaceutics is:

A biphasic system containing finely divided solid particles uniformly dispersed in a liquid vehicle. 

Types of Suspension in Pharmacy 

1. Flocculated Suspension This suspension type exists as one of the main types which results in loose particle aggregates. The system allows for simple redispersement together with reduced caking. 

2. Deflocculated Suspension This suspension type exists as a separate category which maintains its individual particle components. The system experiences slow sedimentation which creates a risk of forming hard cake. 

Suspension Examples in Pharmacy

Suspensions which exist in pharmacists' work include Paracetamol suspension Amoxicillin suspension Antacid suspension Calamine lotion. 

Classification by Route of Administration

The three suspension types which exist in the pharmaceutical field include oral suspensions parenteral suspensions and topical suspensions. 

Conclusion 

Pharmacy professionals design stable and patient-friendly pharmaceutical products by understanding suspension types and common suspension types used in their field.