May 22 2022

Classification of the active ingredient alendronate sodium


Risk level in pregnancy: This medicine is classified as Category C.

No information is available about the risk for the human fetus, although one should not disregard the possible risks of medication administered to a woman before be pregnant , and that, once deposited in the bone matrix,alendronate is released slowly over years.

It is unknown how can influence on the fetus the duration of treatment, dose administered, and the lapse of time since administration.

Update 18.07.2009

Meaning of category C

Animal reproduction studies have shown an adverse effect on the fetus and there are no adequate and well-controlled studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks.