Any process that stops, prevents or reduces the frequency, rate or extent of methanophenazine metabolic process.
Synonyms:
exact_synonym:
down regulation of methanophenazine metabolic process; down regulation of methanophenazine metabolism; downregulation of methanophenazine metabolic process; downregulation of methanophenazine metabolism; inhibition of methanophenazine metabolism; negative regulation of methanophenazine metabolism