In addition, the second most frequent cause of neonatal meningitis after gbs is escherichia coli, which is often resistant to ampicillin.

Ampicillin can make birth control pills less effective.

Gerding et al 48 randomized 156 patients to amikacin metronidazole placebo, amikacin clindamycin placebo, or amikacin clindamycin ampicillin.

However, a double-ester prodrug, in combination with ampicillin sultamicillin , allows up to 68 absorption 15 .

Azidocillin and ampicillin in the treatment of upper respiratory tract infections.