These levels of cyanide are not inherently problematic, however if you are a smoker, are suffering from nutritional deficits, or enzyme defects, your body may have a to a reduced ability synthesize Cyanocobalamin
If your B12 levels are already solid, the impact might be minimal
I have been going here for the past 3 years

PRESCRIPTIVE B12 VERSUS NON PRESCRIPTIVE B12 PRESCRIPTION B12 Hydroxocobalamin NICE-recommended form used by the NHS Prescribed by a GMC or NMC-registered medical practitioner Medical consultation required your safety is assessed first Same clinical standard as your GP Longer-lasting and more stable in the body No cyanide content Administered by a qualified medical professional using correct technique Monitored and reviewed protocol adjusted to your individual needs Private blood testing available to confirm deficiency and track response Legal, compliant and fully documented prescription NON-PRESCRIPTION B12 Often cyanocobalamin cheaper synthetic form not recommended by NICE Not prescribed no prescriber involved No medical consultation or safety assessment required Not the same standard as your GP Shorter-acting and less stable Contains a small amount of cyanide the body must detoxify Administered by non-medical staff with no clinical oversight No monitoring, no review, no adjusted protocol No blood testing deficiency not confirmed No legal prescription grey area of compliance VITAMIN B12 FAQS Vitamin B12 Injection FAQs What is the difference between hydroxocobalamin and cyanocobalamin

Store lyophilized material at 4 F (20 C) or below Allow vial to reach room temperature before opening Protect from light, heat, and humidity Use sterile laboratory equipment during preparation Avoid repeated freezethaw cycles Label reconstituted samples with preparation date and concentration Following these practices helps support consistent and reproducible laboratory results