The absorption of some antibiotics such as penicillin, tetracycline and certain hydrophilic drugs is increased with food?

In the process of sugar coating, the tablet core is usually sealed with a thin film of a poorly water soluble polymer to protect the tablet core and its contents from the aqueous fluids in the gastrointestinal tract. *

he absorption of some basic drugs (eg. Cinnarazine) which has limeted aqueous solubility increased in the presence of food due to
the secretion of Hcl

Viscosity of the solution is one of the factors
associated with the formulation of aqueous solutions that can influence drug bioavailability.

Cold bevarages tend to decrease the gastric emptying time in healthy persons.

Gastro-resistant coatings should preferably begin to dissolve at pH----
-in order to ensure the availability of drugs in the proximal region of the small intestine.

If we do a comparison of the effects of different types of food intake on the serum griseofulvin levels following 1 gm oral dose, greatest level seen with:

The Noyes-Whitney equation shows that dissolution in a flask may be influenced by the physicochemical characteristics of the drug, the formulation,
and the nature of the absorption membrane

When a drug is formulated as a powder filled capsules there is an enormous reduction in the effective surface
area of the drug.

Chloramphenicol concentration in the body
was found to be dependent on the percent of b-polymorph
inthe suspension.*

Erythromycin has a pH- dependent stability
profile; it decomposes rapidly in alkaline medium.

Some effects of food on the bioavailability of a drug from adrug product include:

Enteric-coated tablets: