GI irritation possible
If you are administering vitamin B12 injections at home, there are specific instructions you need to remember
For more information about B12 shot benefits, check out this article from Medical News Today
hospitalization required Maintenance of Remission: Immunomodulators (azathioprine, 6-MP, methotrexate) for steroid-dependent or frequently-relapsing disease Biologic monotherapy or combination therapy (biologic + immunomodulator) for moderate-to-severe disease Step-up or top-down approach based on disease severity, patient risk factors, and prior therapy Biologic Therapy Targets: TNF-: Infliximab (IV), adalimumab (SC), certolizumab pegol (SC) IL-12/23: Ustekinumab (IV induction, SC maintenance) Integrin: Vedolizumab (IV) IL-23: Risankizumab (IV induction, SC maintenance) JAK inhibition: Upadacitinib (oral) Surgical Management Surgery is indicated in approximately 7080% of patients with Crohns disease over their lifetime, per StatPearls
It may also help replenish stores depleted through prolonged sweating
However, the MHRA advice is the same regardless of which country you import from (see helvella 's very useful posts on the topic)