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Prolonged use of corticosteroids may produce posterior subcapsular cataracts, glaucoma with possible damage to the optic nerves, and may enhance the establishment of secondary ocular infections due to fungi or viruses

[42] Low maternal vitamin B 12 , defined as serum concentration less than 148 pmol/L, increases the risk of miscarriage, preterm birth and newborn low birth weight

If pregnant or breastfeeding, be sure to discuss the benefits and risks with your doctor

PubMed,

Retrieved May 3, 2025, from (Cautions that people with low blood pressure or a history of gout should not take niacin/niacinamide due to risk of hypotension and hyperuricemia

Keep a list of all your medications with you, and share the list with your doctor and pharmacist