Immune response Flashcards
what do immunospuressent drugs do
suppress rejection in organ transplant and treat chronic inflammatory and autoimmune conditions
calcinuerin inhibitors
cyclosporin and tacrolimus
corticosteroids use
e.g. prednisolone
prevent rejection and in high doses to treat rejection episodes
sirolimus
is a non-calcineurin inhibiting immunosuppressant licensed for renal transplantation.
can immunosuppressants impair immune response
modify tissue reactions resulting in a rapid spread of infection
immunisation or booster doses should be given ..
before immunosuppressive drugs used or deferred until an improvement in immunity
cyclosporin side effects.
inc risk of infections, fever, headache, nausea and vomiting, diarrhoea , gingival hyperplasia , hypertension , paraesthesia and hepatic disorders
monitoring
serum potassium, lFT, serum magnesium
blood lipids before and after 1st month
if a patient taking cyclosporin experiences raised blood pressure that can’t be controlled by antihypertensives, what should be done?
discontinue treatment
should ciclosporin be prescribed by brand
yes - diff brands
ciclosporin interactions
pomegranate and grapefruit juice
immunoglobulins
normal immunoglobulin administration should be considered as soon as possible after measles exposure, and varicella-zoster immunoglobulin or an antiviral [unlicensed] may be required for individuals exposed to varicella (chickenpox) or herpes zoster (shingles); for further information, see
Tacrolimus vs ciclosporin
Tacrolimus is also a calcineurin inhibitor. Although not chemically related to ciclosporin it has a similar mode of action and side-effects, but the incidence of neurotoxicity appears to be greater; cardiomyopathy has also been reported. Disturbance of glucose metabolism also appears to be significant.
immunosuppressed patients with measles should
Intravenous or subcutaneous normal immunoglobulin may be given to prevent or attenuate an attack of measles in individuals who do not have adequate immunity. Patients with compromised immunity who have come into contact with measles should receive intravenous or subcutaneous normal immunoglobulin as soon as possible after exposure. It is most effective if given within 72 hours but can be effective if given within 6 days.
side effects of tac
headache diarrhoea , dizziness , blurred vision, inc risk of infection,
cardiomyopathy when trough conc is much higher than max recommended