Anti-TNF treatment for Crohn's disease

They are specialist-prescribed biologic medicines, given by injection under the skin or infusion into a vein. The treatment choice considers disease activity, affected bowel, complications, previous medicines, other health conditions, and personal preferences.

Tumour necrosis factor, shortened to TNF, is a messenger involved in inflammation. Blocking it can calm the excessive immune activity that damages the digestive tract in Crohn's disease, supporting symptom control and bowel healing.

Because TNF also contributes to defence against infection, treatment can make some infections harder to control. Screening before the first dose and attention to new symptoms during treatment are therefore part of safe use.

Before starting, the specialist reviews infections, vaccination history, heart or nerve conditions, cancer history, pregnancy plans, and all medicines. Blood tests and infection screening provide a baseline. Keep scheduled tests and report antibiotics, planned surgery, dental infection, or close contact with a serious infection.

Learn correct storage and injection technique if dosing at home, and rotate injection sites as instructed. Do not double a missed dose or stop treatment independently; contact the prescribing team for a plan. Discuss vaccines before receiving them because some types are unsuitable during immune-suppressing treatment.

Contact the clinical team promptly for fever, a persistent cough, breathlessness, painful urination, shingles-like blisters, an infected wound, or unusual exhaustion. Also report worsening abdominal pain, repeated vomiting, increasing diarrhoea, blood in stool, or inability to keep fluids down because Crohn's disease may be active or complicated.

Emergency help is needed for breathing difficulty, facial or throat swelling, collapse, severe chest pain, sudden weakness, or a rapidly worsening infusion reaction. Severe abdominal pain with a rigid or swollen abdomen, fainting, or heavy rectal bleeding also warrants emergency assessment.

Ask how the team will judge response, which tests are planned, how to manage missed doses, whom to call with infection symptoms, and whether other Crohn's medicines will continue. Clarify travel storage, vaccination, pregnancy planning, and what happens if the medicine loses effect.