Iotalamic acid, sold under the brand name Conray, is an iodine-containing radiocontrast agent.

It can be given intravenously or intravesically (into the urinary bladder).

[1] A radioactive formulation is also available as sodium iothalamate I-125 injection (brand name Glofil-125).

It is indicated for evaluation of glomerular filtration in the diagnosis or monitoring of people with kidney disease.

[2] This pharmacology-related article is a stub.