where should b12 shots be injected to Safely Inject B12: A Comprehensive Guide Where to Inject Vitamin B12

Wait at least 8-10 weeks on 75mcg then retest Test early morning, ideally just before 9am and last dose levothyroxine 24 hours before test If she normally takes levothyroxine at bedtime/in night ...adjust timings as follows prior to blood test If testing Monday morning, delay Saturday evening dose levothyroxine until Sunday morning

(source) Perhaps most alarming and important: There are no vegetable sources of Vitamin B12

You should see a doctor if you experience any of these symptoms, especially if you are taking supplements containing vitamin B6

Clients receive 100% of drug rebates that Express Scripts obtains by negotiating with pharmaceutical companies