Safe Medications for Constipation in Pregnant Women

Treatment Algorithm

The American Gastroenterological Association recommends increasing dietary fiber intake to approximately 30 g/day through fruits, vegetables, whole grains, and legumes for pregnant women with constipation 1, 2
The American Gastroenterological Association suggests ensuring adequate fluid intake, particularly water, to soften stools and improve transit time 2, 3
Psyllium husk or methylcellulose are safe during pregnancy due to minimal systemic absorption and can be used as bulk-forming agents if dietary changes are ineffective 1, 3
Polyethylene glycol (PEG) 17g daily can be safely administered during pregnancy as an osmotic laxative 1, 3
Lactulose is also safe but may cause more bloating than PEG 1, 3
Stimulant laxatives should generally be avoided as routine therapy but can be used cautiously for short-term relief when other methods fail 1, 2, 3

The American Gastroenterological Association recommends assessing frequency and consistency of bowel movements, evaluating for pain or bleeding during defecation, and screening for hemorrhoids in pregnant women with constipation 1, 2
Hydrocortisone foam has been shown to be safe in the third trimester for symptomatic relief of hemorrhoids 2, 3
Stool softeners (PEG) can help achieve softer stools and reduce strain on hemorrhoids 4
Constipation affects approximately 20-40% of pregnant women, with primary cause being increased progesterone levels slowing GI motility 1, 2
Contributing factors include hormonal changes, medications, anatomic compression from the gravid uterus, and low dietary fiber intake 1, 2

PEG and lactulose are the safest pharmacological options with minimal systemic absorption 1, 3
Bulk-forming agents like psyllium have minimal systemic absorption and are not expected to cause congenital anomalies 1