if it's prescribed by your doctor then he is likely to reduce the dosage. you may do that and see how it feels. if you are doing fine then remain on the lower dosage. If you feel better with a higher dosage yet he refuses to increase it, you may self-TRT using online sources.
But straight answering your question - yes, it's higher than what it would be considered normal in medical settings. But higher dosage is what most of us aim during the steroid cycle to help grow muscle, get stronger and burn some fat