If you are currently being treated with any of the following medications, you
should not use cartilage supplements without first talking to your healthcare
provider.
Thiazide Diuretics
Cartilage contains high amounts of calcium. Thiazide diuretics, such as
hydrochlorothiazide, can raise calcium levels in the blood. Therefore, using
cartilage supplements together with this type of diuretic could lead to
dangerously high levels of calcium.