Prescribing in pregnancy Flashcards
Which AED is never given to girls of reproductive age unles there is a pregnancy prevention programme?
Sodium valproate (Epilim)
Which drug is the most teratogenic?
Valproate
What are the teratogenic effects of valproate/ epilim?
Neuropsychiatric problems
Which AED can be given in pregnancy?
Lamotrigine
Which antibiotics should not be given in the first trmester?
Quinolone antibiotics i.e. ciprofloxacilin because of skeletal abnormalities
Tertracyclines bind calcium and cause yellowing of teeth and because of this for adults never have tertarcyline with milk
Which drugs should not be taken by pregnant women in the first trimester?
- Androgens (vorilisation)
- Cirpofloxacilins (skeletal)
- Lithium (Ebsteins)
- Valproate (neuropsych and NTD)
- Retinoids (cranial facial)
- Warfarin (nasal hypoplasia)
CRAWLS (ciprofloxacin, retinoids, androgens, warfarin, lithium, sodium valproate)
Which drugs should not be given in second or third trimester?
- ACE inhibitors (because it restricts amniotoc fluid oligoamniohdryos)
- Gentamicin (hearing defects)
- Aspirin
- Opiates (withdrawal syndrome))
- Tetracyclines
- Sulphonamides (hyperbiliribunemia, icterus)
GOAATS - Gentamicin, opiates, ACEi, aspirin, tetracycline, sulphonamides
Which drugs cause hyperbilirubinemia and kernitcterus?
Sulphonamides
What things should be taken into consideration in omen taking medication and breastfeeding?
- Is it necessary
- can it be changed
- taking at a different time
Why are sulphonamides drugs a problem in children?
Displace bilirubin from abumin causing neonatal jaundice
Which anticoagulants are OK for pregnant women?
LMWH
What is GFR in the neonate compared to the adult? Why is this a problem|?
30-40%
Drugs accumulate
How is dosing calculated for children?
Surface area x adult dose
What differences are there in babies and adults with absorption? [Consider gastric route, transcutaneous and IM]
Babies have very slow gastric empyting.
Intramusculaar may be less due to less muscle mas
Percutaneous is quicker due to thinner stratum corneum.
How is metabolism different in babies compared with adults?
Much slower. Most babies only dveelop metabolic enzymes after birth and these are slow to increase. Caffiene for example can be used as a respiratory stimulate in babies due to longer half life.