Can peptides affect metabolism of other medications through liver enzymes?

Most peptides are broken down into amino acids and don't significantly affect cytochrome P450 enzymes that metabolize many drugs. However, if you take medications with narrow therapeutic windows (warfarin, digoxin), monitor drug levels closely when starting peptides. <a href='https://www.fda.gov/drugs/drug-interactions-labeling/drug-development-and-drug-interactions-table-substrates-inhibitors-and-inducers' target='_blank'>FDA Drug Interactions</a>