Yuill G M
Postgrad Med J. 1973 Feb;49(568):100-2. doi: 10.1136/pgmj.49.568.100.
A patient is described in whom malignant hypertension led to oliguric renal failure. A course of trimethoprim and sulphamethoxazole (co-trimoxazole) was prescribed for an intercurrent urinary tract infection and appeared to precipitate a megaloblastic anaemia which responded satisfactorily to folic acid.