Blinding
All drugs were constituted and dispensed by a research assistant from
the research unit of the
pharmacy department of Ahmadu Bello University Teaching Hospital in
sterile syringes for immediate administration. All drugs were exactly
the same in appearance and volume. The principal investigator, research
assistants and special care baby unit/neonatal intensive care unit staff
were not aware of the group the women and neonates belonged to because
all drugs appeared exactly the same at point of administration.