Managing hypertension in pregnancy is difficult in the sense that there is not a lot of data to guide us. Most of the drugs listed as "safe during pregnancy" are considered so largely based on many years of experience.
With that said, here are a list of medications which can be used, and those which should be avoided:
1st line agents: labetalol, hydralazine, alpha-methyl dopa, and calcium-channel blockers.
some possible side effects : beta-blockers (which are associated with low birth weight) and diuretics.
definitely contraindicated: ACE-inhibitors; ARBs. The classical teaching was that ACE-inhibitors were tolerable during the 1st trimester but needed to be avoided after that; more recent suggests that even 1st trimester ACE-I use is associated with an increased risk of fetal malformations.
Tuesday, August 19, 2008
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I wrote an article on hypertension in pregnancy in Seminars in Nephrology. If you'd like to read it but your institution doesn't have the journal, email me and I can send it to you.
http://www.seminarsinnephrology.org/article/S0270-9295(10)00177-4/abstract
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