Yes, in your prescription “T. CTM Hair” most likely means Tablet CTM Hair, which refers to a nutraceutical supplement like CTM Hair Cyclical Therapy for Men, and it is appropriate for your concerns of hair thinning and premature greying as it typically contains nutrients such as MSM, beta sitosterol, amino acids, vitamins, and minerals that support hair strength, reduce hair fall, and help address nutritional deficiencies linked to early greying, and there is no standard tablet called TCTM, so your doctor has likely prescribed the correct medicine, but since results vary and improvement in greying is usually limited, it is advisable to follow up with your doctor or consult a trichologist if you do not notice benefit after a few months.