
Misoprostol is an orally active prostaglandin 
E1 analogue, which was first licensed for the 
prevention and treatment of NSAID-induced ulcers. 
Because of its ease of use and strong uterotonic 
properties, it quickly found uses in reproductive 
health for the induction and treatment of abortion, 
induction of labour and in the management of 
postpartum haemorrhage. The manufacturer of the 
original brand (Cytotec) was reluctant to encourage 
its reproductive use for fear of a back-lash 
from the antiabortion lobby. It therefore remains
off-label for reproductive health uses. This has 
done little to stem enthusiasm for the drug with 
protagonists pointing out that some of the most 
important drugs in obstetrics (e.g. corticosteroids 
to promote fetal lung maturity) remain off-label 
for pregnancy use. Furthermore, the World 
Health Organisation now considers misoprostol 
an essential drug for a variety of gynaecological 
indications. Clinicians are protected legally when 
using it by the principle that doctors should act 
according to ‘best practice’ as determined by 
their peers. They should not be deterred by the 
lack of licences, which were introduced to prevent 
misleading claims by the pharmaceutical industry 
rather than to guide clinicians’ prescribing. The 
current situation is made easier by the widespread 
production of generic misoprostol tablets, licensed 
for reproductive health indications.