con ‧ tra ‧ in ‧ di ‧ ca ‧ tion /ˌkɒntrəˌɪndəˈkeɪʃ ə n, ˌkɒntrəˌɪndɪˈkeɪʃ ə n $ ˌkɑːn-/ BrE AmE noun [countable] medical
a medical reason for not giving someone a particular medicine or drug
—contraindicate /ˌkɒntrəˈɪndəkeɪt, ˌkɒntrəˈɪndɪkeɪt $ ˌkɑːn-/ verb [transitive usually passive] :
In his case, steroids are contraindicated.