Riboflavin interactions with other nutrients

Riboflavin is necessary for the activation of vitamin B6 and is also necessary for the conversion of tryptophan to niacin.

Interactions with drugs

Sulfa drugs, anti-malarial drugs, estrogen, cathartic agents and alcohol may interfere with riboflavin metabolism. High doses of riboflavin can reduce the effectiveness of the anticancer drug methotrexate. Some antibiotics and phenothiazine drugs may increase riboflavin excretion.

Riboflavin must be activated in the liver. This activation may be inhibited by major tranquilizers, and some antidepressants. Long-term use of barbiturates may adversely affect riboflavin status.

Cautions

High doses of riboflavin can produce urine discoloration which can affect urine analysis results.

Riboflavin Categories:

Riboflavin
Riboflavin health
Riboflavin absorption
Riboflavin deficiency
Riboflavin sources
Riboflavin recommended daily
Riboflavin overdose
Riboflavin supplements
Riboflavin interactions

Other Vitamins:

Vitamin A
Carotenes
Beta carotene
Lycopene
Lutein
Thiamin
Riboflavin
Niacin
Vitamin B6
Folate
Vitamin B12
Biotin
Pantothenic acid
Vitamin C
Vitamin D
Vitamin E
Vitamin K