Ampicillin is active against certain Gram positive and negative organisms but is inactivated by penicillinases produced by Staph.aureus, a third of E.coli and a tenth of H.influenzae. Ampicillin is poorly absorbed and absorption is decreased by food in the gut.
Cautions:
Contra-indications:
Side-effects:
Routes of administration:
Ampicillin is also available as an injection or suspension with cloxacillin under the trade names 'Ampiclox' and 'Ampiclox Neonatal'.
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