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doi: 10.1021/jacsau.4c00695
The most commonly involved tendons in golfers elbow are the flexor carpi radialis and the pronator teres

So, some other ways you can get B12 include: Taking sublingual tablets Intramuscular injections Intranasal gel Most people prefer sublingual tablets because they are more affordable and do not require regular injections

Ships as powder, stable at room temp for days

This suggests to me that the absorption under the tongue is not as good as most people think