Oxytocin (Syntocinon)
 
Presentation
• 10 units (iu) in 1 ml ampoule
Pharmacology
• A synthetic oxytocic
Actions
• Stimulates smooth muscle of the uterus producing contractions
Metabolism
• By the liver Excreted by the kidneys
Primary Emergency Indications
• Primary post partum haemorrhage Obst
Contraindications
• Previous Hypersensitivity
• Severe toxaemia (pre-eclampsia)
• Ensure multiple pregnancy excluded before drug administration
• Cord prolapse
Precautions
• If given IV may cause transient hypotension
• Concurrent use with Methoxyflurane may cause hypotension
Route of Administration
• IM
Side Effects
• Uncommon via IM route:
  - Tachycardia
  - Bradycardia
  - Nausea
Special Notes
Concomitant use with prostaglandins (Misoprostol) may potentiate uterotonic effect
Must be stored between 2 to 8
°C  
Therapeutic Effect
IM     
Onset:
2-4min
Peak:
Duration:
30-60min