Transamination results in an ammonia-containing product that can be eliminated by the kidneys in the urine called

Urea (‎CH4N2O), bi carbonate ion (HCO-3), creatinine, bilirubin are the ammonia containing products, are eliminated by kidneys through urine by a process of transamination.

Breakdown of amino acids results in formation of ammonium ions.

The elimination or excretion of urea is called ureotelism.