What should you know about conditioning chemotherapy?

It is given according to a carefully planned regimen before the transplant. The medicines and intensity depend on the disease, previous treatment, general health and type of transplant.

Conditioning may use chemotherapy alone or combine it with radiotherapy. Some regimens are more intensive, while reduced-intensity regimens rely more on the donor immune cells after transplant. Your transplant team chooses the approach by balancing disease control with how well your organs are expected to tolerate treatment.

Because conditioning also reduces healthy blood-forming and immune cells, low blood counts, infection risk, tiredness, nausea, mouth soreness, diarrhoea and hair loss can occur. The exact pattern varies with the medicines used.

Attend the planned heart, lung, kidney and blood assessments, and give the team a complete list of medicines, supplements and allergies. Follow instructions about central-line care, food safety, infection precautions and medicines that prevent nausea or infection.

Arrange practical support for the hospital stay and early recovery. Report fever or illness before admission, and do not start or stop a medicine without checking with the transplant team because interactions can alter treatment or increase side effects.

Contact the transplant service immediately for a fever at or above the threshold they gave you, shaking chills, breathing difficulty, chest pain, confusion, uncontrolled bleeding, a new rash, severe diarrhoea, repeated vomiting or inability to drink. Do not wait for a routine appointment when these occur.

Use the hospital's emergency contact instructions if you feel suddenly unwell, even without fever. Conditioning can weaken infection defences, so an infection may worsen quickly or appear with subtle symptoms.

Ask which medicines are included, why this intensity was selected, which short-term and later effects matter for you, how fertility could be affected, and whom to call outside clinic hours. Also clarify the admission plan, protective precautions and how the team will monitor blood counts and organ function.