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Chronic use typically results in vitamin B12 deficiency anemia , causing severe neurological complications

Report vision changes , severe pain, or skin color changes immediately, as these could indicate vascular complications

The most discussed effects are sexual in nature: a subset of users report reduced libido, erectile dysfunction, and ejaculatory changes in approximately two to four percent of users in clinical trials, though real-world reporting and patient advocacy groups suggest this number may undercount persistent cases [6]

This is especially beneficial for individuals with absorption issues or those seeking rapid improvements in specific health areas