Ampicillin

Intra-amniotic infection, in combination with gentamicin; add anaerobic cover for caesarean according to the chosen guideline

IV infusion

Every 6 hours

Continue through birth with postpartum review; the cited Malaysian NAG continues until afebrile/asymptomatic ≥48 h. Other national protocols shorten postpartum treatment after clinical recovery · Reconstitute the actual vial per label; dilute each adult dose in 100 mL sodium chloride 0.9% or glucose 5% and infuse over 30 min. Use a separate line/flush from gentamicin

• This is not GBS prophylaxis and is not ampicillin monotherapy. The postpartum duration differs between guidelines; record the local choice explicitly.

8 g/day in this 2 g every-6-h regimen; renal impairment requires adjustment

GBS prevention during labour when prophylaxis is indicated

IV infusion

Initial 2 g load, then 1 g every 4 hours

Continue UNTIL BIRTH; this is not a multi-day infection-treatment course · Reconstitute according to the vial; dilute the adult dose in compatible fluid and infuse over 30 min. Do not mix with gentamicin

• Penicillin G is dosed in MILLION UNITS; its 5-million-unit loading schedule must not be copied as grams of ampicillin.

2 g loading, then 1 g per subsequent dose until birth