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Some more severe, but rare, side effects that can occur are low potassium levels, muscle cramps, irregular heartbeat, chest pains, or blurred vision
Future research will focus on three directions: Further exploring effects in humans and conducting clinical trials to verify safety and efficacy in human anti-aging, supporting translational application
Signposting patients to MHRA guidance on unlicensed medicines and the risks of online purchasing is a practical and important step in safeguarding patient welfare
Factors such as initial B12 levels, underlying medical conditions, certain medications, advanced age, and injection frequency can affect the absorption and utilization of B12, possibly shortening the duration of action
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