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Out-of-competition testing targets substances that provide training advantages even when not used immediately before competition
Key benefits include: Caution It is advisable to avoid or limit alcohol while on methylcobalamin injections
On the one hand, it is claimed to have multiple effects on health
Patients self-injecting vitamin B12 without telling their GP, finds study A large proportion of patients with a vitamin B12 deficiency self-inject medication sourced online, citing difficulty with accessing treatment from GPs
Conservative approaches use shorter 4-6 week cycles with 2-4 week breaks, repeating as needed
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