For extended international travel, some patients may need to arrange for medication delivery to their destination or identify local pharmacies that can provide refills, though insurance coverage and medication availability vary by country
Funding The authors declare that no funds or grants were received during the preparation of this manuscript
Neither DECIEM nor The Ordinary is affiliated with the trademark owners
Reported effects in human use are generally mild injection-site reactions, lightheadedness, fatigue, nausea
Individual factors such as metabolic rate, body weight, and age may theoretically influence how B12 is distributed and utilised, though evidence for their impact on injection intervals is limited
Yes, even one incident can cause irreversible liver scarring