Drugs used in obstetrics and gynaecology Flashcards

1
Q

Drugs used in obstetrics and gynaecology

Syntocinon

A

Syntocinon is a synthetic version of oxytocin that is used in the active management of third stage of labour. It stimulates the contraction of the uterus reducing the risk of postpartum haemorrhage. It is also used to induce labour.

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2
Q

Ergometrine

A

Ergometrine is an ergot alkaloid which is used as an alternative to oxytocin in the active management of third stage of labour. By constricting vascular smooth muscle of the uterus it can decrease blood loss.

Mechanism of action
stimulates alpha adrenergic, dopaminergic and serotonergic receptors

Adverse effects
coronary artery spasm

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3
Q

Mifepristone

A

Mifepristone is used in combination with misoprostol to terminate pregnancies. Misoprostol is a prostaglandin analog that causes uterine contractions.

Mechanism of action
competitive progesterone receptor antagonist

Adverse effects

menorrhagia

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