When you want to relieve your headache, choose Riboflavin Plus. This formula contains, among others, magnesium, riboflavin (vitamin B2) and Tanacetum parthenium, also called feverfew. Feverfew relieves headaches. Riboflavin (vitamin B2) and magnesium contribute to the normal functioning of the nervous system. Feverfew relieves headaches. Magnesium contributes to normal psychological function. When and how to take it? Riboflavin Plus from Bonusan is an easy supplement to take, the capsules are not very large. Unless otherwise directed, take five capsules daily during or immediately after meals. If you have trouble swallowing the capsule, you can open it and dissolve its contents in a small glass of water. Don't panic if your urine turns a deep yellow color after using this supplement. It is an effect of vitamin B2 and is completely harmless. How to use: If there is no different advice, take 5 capsules a day during or immediately after a meal. Do not exceed the recommended daily dose. Vitamin B2 may discolor your urine while taking Riboflavin Plus. This has no further adverse consequences.