Posso tomar Erva-de-São-João e Vitamina B2 juntos?

Por que isso acontece

St John's Wort is known for affecting how the liver processes many medicines (via the CYP450 enzyme system), but Vitamin B2 is a water-soluble vitamin that is not processed in a way that interferes with this herbal supplement. They do not compete for the same pathways in the body.

You can take these two together. However, always inform your doctor or pharmacist about all supplements you are taking, as St John's Wort can interact with many prescription medications, such as blood thinners, birth control, and antidepressants.

Depression and Mental Health

Like other antidepressants, St John's wort may increase the risk of suicidal thoughts or self-harm, particularly when first starting treatment. Seek immediate medical help if your mood worsens.

Drug Interactions

St John's wort significantly reduces the effectiveness of many essential medicines, including the contraceptive pill, blood thinners (warfarin), epilepsy medications, and organ transplant drugs. Do not start it without a pharmacist checking your current medications.

Síndrome da Serotonina

Taking St John's wort with other antidepressants or triptans (for migraine) can cause serotonin syndrome, a potentially life-threatening condition involving high fever, agitation, and muscle rigidity.

Photosensitivity

St John's wort can make your skin significantly more sensitive to sunlight, leading to severe sunburn or skin reactions even with limited exposure.

Álcool

It is best to avoid or strictly limit alcohol while taking St John's wort. Combining the two can increase drowsiness and dizziness, and may worsen the side effects of the herbal remedy.

It is best to avoid or strictly limit alcohol when taking Vitamin B2. Alcohol can interfere with the way your body absorbs this vitamin from the digestive tract, making the supplement less effective.

Cafeína (Café, Chá, Bebidas Energéticas)

St John's wort can sometimes increase sensitivity to caffeine, leading to feelings of restlessness, anxiety, or a racing heart. Monitor your intake if you feel jittery.

Foods high in Tyramine (e.g., aged cheeses, cured meats, soy sauce, marmite, overripe fruit)

While less common than with older prescription antidepressants, St John's wort can potentially interact with tyramine-rich foods, leading to a sudden, dangerous increase in blood pressure (hypertensive crisis). You should consume these foods in moderation.

Tomando vários medicamentos? Nosso Verificador de Interações de Medicamentos ajuda você a verificar se suas prescrições, medicamentos de venda livre e suplementos são seguros para serem tomados juntos. Basta procurar seus medicamentos para ver possíveis interações e o que fazer sobre elas.

Aviso Legal

Esta informação é apenas para fins educacionais gerais e não deve ser considerada como um substituto para aconselhamento médico profissional. Sempre consulte seu médico, farmacêutico ou outro profissional de saúde qualificado antes de tomar decisões sobre seus medicamentos. As circunstâncias individuais podem variar, e somente um profissional de saúde que conheça seu histórico médico pode fornecer orientações personalizadas.