b12 shots mthfr

My son has crohns for 18 years. Hes been getting methylcobalamin (b12) shots for years. It was always methylcobalamon. Now they say they can only prescribe cyanocobalamin, which is the syntnetic form. Your body has to take the b12 you ingest and turn it into methylcobalamin. If you have liver problems this is hard to do. Now it is more hard for him to do because he just tested positive for genetic variation mthfr677c . Which means he haus ahard time converting folic acid/folate into methylfolate (the usable form) and that in turn methylates the b12. You need the whole methylation process to make glutathione, lower homocysteine, and prpduce neurotransmitters. I feel everone should get tested for mthfr genetic variants. The local labs are now doing it. This genetic variant can be the route cause of many health problems. Please do a google search and read about it. But my questiion was, is anybody getting methylcobalamin from their pharmacy?

Thank you for replying. We just found out we would not be able to get the methyl IM. We will try sublingual. I dont know if the patch is methyl. There is one compouding pharmacy 2 hrs away that they say will do it.. ill have to see how reputable they are and they can mail it. He is pretty compromised with uncontrollable hyertension, panic attaachs, peripheral pain. It seems as much or more to do with the mthfr than crohns and his surgeries.I wish i could get someone hear to read the various mthfr websites and comment on it here for me. I also just found out i have the mthfr c677t variant at age 68.medicare paid for the test through labcorp for me. Its as important to get tested for as vitamin D or B 12; for one reason vitamins like folic acid (synthetic folate} is probably doing you more harm than good.