Factrel Solution Rx | PBS Animal Health- gonadorelin ,Factrel Solution contains 50 mcg gonadorelin HCl per ml. Refrigerated item; cooler required for shipping.Gonadorelin - Substance Information - ECHASubstance information. Infocards are automatically generated based on industry data. What is an infocard? RSS. Gonadorelin ↓Other names: Regulatory process names [2] IUPAC names [3] Print infocard. Substance identity Substance identity.