can you drink after a b12 injection Why Do I Feel Worse My Injection? Causes & Management – Bolt Pharmacy How Long Do Vitamin B12
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Check with your doctor immediately if you have any of these side effects

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These side effects may include: Pain, redness, or swelling at the injection site Headache Fatigue Dizziness Blurred vision Serious side effects from vitamin B12 injections are rare

The slowed gastric emptying combined with altered gut motility creates unpredictable effects on colonic transit