etc cns drugs phenytoin chlorpromazine etc anti inflammatory drugs e g gold salts phenylbutazone etc etc can cause ild see cecil textbook of medicine 19 th edition edited by james b wyngaarden lloyd h smith jr and j claude bennet chapter 60 table 60 4 p 398 1992 an immune reaction disorder for example chronic graft vs host disease with dermal fibrosis see fibrotic skin diseases editorial j uitto and s jimenez arch dermatol vol 126 may 1990 p 662 disease states such as aspiration pneumonia which is a known cause of ild see harrison 39 s principles of internal medicine twelfth edition chapter 211 table 211 1 p 1083 and parasite induced fibrosis see wahl s m kidney int 1997 51 5 1370 1375 and wounds for example blurt trauma surgical incisions battlefield wounds etc as in penetrating injuries of the cns see ann logan et al brain research 587 1992 216 225 somatostatin somatotropin release inhibiting factor or srif has both a 14 amino acid isoform somatostatin 14 and a 28 amino acid isoform somatostatin 28 see wilson j amp foster d williams textbook of endocrinology p 510 7th ed 1985 the compound is an inhibitor of secretion of the growth hormone and was originally isolated from the hypothalamus brazeau et al science 179 77.