headaches after b12 injections I've had a migraine since Sept 4th. I took a injection that day (prescribed by my doctor) so I'm wondering if it's related or coincidence. I'm scared to take another one Nutritional Supplements for Your Headache
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If you are allergic to cobalt, you should avoid taking vitamin B12 supplements without consulting your healthcare provider

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Injections offer nearly 100% bioavailability, sending the vitamins directly where they are needed

Fill a couple of milliliters of air into the syringe
