Components of this product have been associated with gastrointestinal effects such as heartburn, eructation, abdominal pain and cramps, diarrhea, vomiting, nausea and anorexia. Hepatic dysfunction with abnormal liver function tests, including hyperbilirubinemia, has been noted. Deterioration of acneiform vulgaris, or eruption of acneiform exanthema, has been noted with several components. Bright yellow urine discoloration has been reported with riboflavin usage. Niacinamide has strong vasodilator effects, most often characterized by flushing, dizziness or faintness. Peripheral sensory neuropathies have been noted with the use of pyridoxine. With ascorbic acid usage, stone formation, crystalluria and oxalosis have been reported in the literature.
Seek medical attention immediately at the first sign of any adverse drug reaction.
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