Genotoksicitetsundersøgelser har vist, at tenofovirdisoproxilfumarat var negativt i in vivo - mikronukleusanalysen af museknoglemarv, men positivt for induktion af tidlige mutationer i in vitro - L5178Y- muselymfomcelleanalysen med eller uden stofskifteaktivering af S9.
Genotoxicity studies have shown that tenofovir disoproxil fumarate was negative in the in vivo mouse bone marrow micronucleus assay but was positive for inducing forward mutations in the in vitro L5178Y mouse lymphoma cell assay in the presence or absence of S9 metabolic activation.