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picture1_Ppt Chemical 68157 | Dry Syrups


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File: Ppt Chemical 68157 | Dry Syrups
contents definition characteristics of suspensions for reconstitution commonly used ingredients preparation of dry mixture stability considerations guidelines for stability testing conclusion references 2 dry syrups definition dry powders for oral ...

icon picture PPTX Filetype Power Point PPTX | Posted on 28 Aug 2022 | 3 years ago
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                               CONTENTS
      •  DEFINITION
      •  CHARACTERISTICS  OF  SUSPENSIONS  FOR  
         RECONSTITUTION
      •  COMMONLY  USED  INGREDIENTS
      •  PREPARATION  OF  DRY  MIXTURE
      •  STABILITY  CONSIDERATIONS
      •  GUIDELINES  FOR  STABILITY  TESTING 
      •   CONCLUSION 
      •   REFERENCES
                                                                               2
                   Dry Syrups
 Definition
     Dry powders for oral suspension are powder mixtures that require the 
   addition of water (reconstitution) at the time of dispensing and are 
   mostly for paediatric use. These are called dry syrups or 
   reconstitutable oral suspensions.  
 Rationale
 • Inadequate chemical stability of the drug in the aqueous vehicle.
 • Avoid the physical stability problems like viscosity changes, 
   conversion of polymorphic form, incompatibility, crystal growth, 
   caking.
 • Reduces the weight of final product.
 • Shipped without regard to seasonal temperatures.
                                                     3
      Required characteristics of Suspensions for 
                         reconstitution
   • Powder blend must be a uniform mixture of the 
     appropriate concentration of each ingredient.
   • During reconstitution the powder blend must disperse 
     quickly and completely in the aqueous vehicle.
   • Reconstituted suspension must be easily redispersed 
     and poured by the patient to provide accurate and 
     uniform dose.
   • Final product must have an acceptable appearance, odor, 
     and taste.
                                                             4
             Commonly used Ingredients
   Frequent             Infrequent
   Suspending agent        Anticaking Agent
   Wetting agent           Flocculating agent
   Sweetener            Solid diluent
   Preservative         Antifoaming agent
   Flavor               Granule binder
   Buffer            Granule disintegrant
   Color             Antioxidant
                     Lubricant
   •  Number of ingredients should be kept minimum.
   •  An ingredient that performs more than one function – Sucrose
   •  All ingredients should disperse rapidly on reconstitution.
                                                          5
    Typical Reconstitutable Oral Suspensions
                        Drug              Manufacturers
            Amoxicillin trihydrate        SmithKline 
                                          Beecham
            Ampicillin                    Biocraft
            Cephalexin                    Dista
            Dicloxacillin sodium          Apothecan
            Erythromycin ethylsuccinate   Abbott
            Pencillin V potassium         Lilly
            Ampicillin and Probenecid     Biocraft
  •  Nearly all drugs formulated as reconstitutable oral suspensions are  
     antibiotics
  •   Sodium dicloxacillin is water soluble, it is formulated as an 
                                                                6
    insoluble  
     form in suspension to help mask the odor and taste
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...Contents definition characteristics of suspensions for reconstitution commonly used ingredients preparation dry mixture stability considerations guidelines testing conclusion references syrups powders oral suspension are powder mixtures that require the addition water at time dispensing and mostly paediatric use these called or reconstitutable rationale inadequate chemical drug in aqueous vehicle avoid physical problems like viscosity changes conversion polymorphic form incompatibility crystal growth caking reduces weight final product shipped without regard to seasonal temperatures required blend must be a uniform appropriate concentration each ingredient during disperse quickly completely reconstituted easily redispersed poured by patient provide accurate dose have an acceptable appearance odor taste frequent infrequent suspending agent anticaking wetting flocculating sweetener solid diluent preservative antifoaming flavor granule binder buffer disintegrant color antioxidant lubrican...

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