Absorption gastrointestinal tract

Gastrointestinal Tract Absorption. The structure and function of this tract is varied and complex. The structure of the pesticide may be altered within the G.I. tract due to changes in pH in the stomach and intestine, or due to enzymatic action within the gut before it is absorbed into the lacteals and eventually into the hepatic portal system or lymphatic system. 

In order to explore the effects of surfactants on the gastrointestinal tract, absorption experiments (with families of homologous or structurally related compounds) were performed in absence and in the presence of surfactants and with the xeno-... 

It is possible that in this case, although chlorhexidine was poorly absorbed from the gastrointestinal tract, absorption occurred through the pulmonary alveoh. 

Approximately 50-90% of the long-acting barbiturates are slowly absorbed from the gastrointestinal tract. Absorption is more rapid when ingested on an empty stomach and in the presence of alcohol. The onset of action varies 30-60 min for mephobarbital... 

Exposure of mancozeb to humans can occur via absorption through the gastrointestinal tract, absorption through the skin or lungs. Human exposure to mancozeb, similar to maneb, has been calculated for... 

Data from animal experiments indicate that methyl acrylate is readily absorbed from the respiratory and gastrointestinal tracts. Absorption of methyl acrylate through the skin occurs less readily and may be limited by evaporation of methyl acrylate if the applied dose is unoccluded. 

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