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If headaches persist despite the above for more than 3 weeks, or if they worsen, provider evaluation is appropriate
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All products are sold for research, laboratory, or analytical purposes only , and are not for human consumption
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For example, a doctor might prescribe the following: 100 micrograms daily for about a week Followed by every other day for seven doses After that, every three to four days for two to three weeks Once monthly until the deficiency is treated B12 injections require a prescription and can be administered at a doctor's office or at home with the approval of a healthcare provider
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