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[1] In moderate deficiencies, feeling tired, feeling faint, mouth ulcers, rapid breathing, upset stomach, pallor, hair loss, decreased ability to think and joint pain and the beginning of neurological symptoms, including abnormal sensations such as, numbness and tingling, and tinnitus may occur

Tingling in Hands & Feet indicates that your nerves may not function properly

Drug/Laboratory Test Interactions: Persons taking most antibiotics, methotrexate and pyrimethamine invalidate folic acid and vitamin B 12 diagnostic blood assays

5-Amino-1-methylquinolin-1-ium Iodide, 5-amino-1MQ, Purity 98% Min, 5 grams powder, CAS No

Food and Drug Administration (FDA) doesnt require supplements to be proven safe or effective before theyre sold