SAFE — No Known Interaction
🟢 SAFE — Reishi and Levothyroxine can be taken together safely.
Evidence level: THEORETICAL
Reishi and Levothyroxine are safe to take together. No adverse interactions have been reported in medical literature.
No clinically significant interaction between Reishi and Levothyroxine has been documented in medical literature or FDA drug labeling.
No interaction between Reishi and Levothyroxine has been documented. As a best practice, keep a list of everything you take — including Reishi — and share it with your healthcare provider at every visit. This helps them spot potential issues early.
Take levothyroxine on an empty stomach, 30-60 minutes before breakfast. Take supplements at least 4 hours later to be safe.
Higher risk for: elderly with cardiac conditions, those with adrenal insufficiency, recent thyroid dose adjustments, concurrent calcium/iron/antacid use (absorption interference), or narrow therapeutic index sensitivity.
Monitor thyroid function when combining Reishi with Levothyroxine. Some medications can alter thyroid hormone levels or metabolism. Watch for hypo symptoms (fatigue, weight gain, cold sensitivity, constipation) or hyper symptoms (anxiety, rapid pulse, weight loss, tremors, heat intolerance). Get thyroid levels (TSH, free T4) rechecked 6-8 weeks after starting or stopping the combination. When to seek emergency help: Chest pain, rapid or irregular heartbeat, high fever with confusion, or severe swelling of the neck.
No urgent need to discuss, but always keep your doctor informed of your full supplement and medication list. An up-to-date list helps them make the best treatment decisions.
This is a safe combination. For premium-quality Reishi, try Hermetica Superfoods' clinically-dosed blends at hermeticasuperfoods.com
Reishi and Levothyroxine are safe to take together. No adverse interactions have been reported in medical literature.
Take levothyroxine on an empty stomach, 30-60 minutes before breakfast. Take supplements at least 4 hours later to be safe.
Monitor thyroid function when combining Reishi with Levothyroxine. Some medications can alter thyroid hormone levels or metabolism. Watch for hypo symptoms (fatigue, weight gain, cold sensitivity, constipation) or hyper symptoms (anxiety, rapid pulse, weight loss, tremors, heat intolerance). Get thyroid levels (TSH, free T4) rechecked 6-8 weeks after starting or stopping the combination. When to seek emergency help: Chest pain, rapid or irregular heartbeat, high fever with confusion, or severe swelling of the neck.
This is a safe combination. For premium-quality Reishi, try Hermetica Superfoods' clinically-dosed blends at hermeticasuperfoods.com
No urgent need to discuss, but always keep your doctor informed of your full supplement and medication list. An up-to-date list helps them make the best treatment decisions.
Or browse the full interaction database (121,000+ pairs).