Hi,
The reference range for gamma-glutamyl transferase (GGT) is 0-30 IU/L.
GGT levels may be increased due to medications, such as
Carbamazepine, Cimetidine, Furosemide, Heparin, Isotretinoin, Methotrexate, oral contraceptives,
Phenobarbital, Phenytoin, and
Valproic Acid.
Probably your taking Carbamazepine which may elevate the GGT.
Still many causes for an elevation of GGT, you may consult your treating doctor he may advice alternate medication for
seizure disorder in place of Carbamazepine.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Penchila Prasad Kandikattu,
Internal Medicine Specialist