SAFE — No Known Interaction
🟢 SAFE — St. Johns Wort and Amphetamine/Dextroamphetamine can be taken together safely.
Evidence level: LIMITED
St. Johns Wort and Amphetamine/Dextroamphetamine are safe to take together. No adverse interactions have been reported in medical literature.
No clinically significant interaction between St. Johns Wort and Amphetamine/Dextroamphetamine has been documented in medical literature or FDA drug labeling.
No interaction between St. Johns Wort and Amphetamine/Dextroamphetamine has been documented. As a best practice, keep a list of everything you take — including St. Johns Wort — and share it with your healthcare provider at every visit. This helps them spot potential issues early.
Take Amphetamine/Dextroamphetamine in the morning — stimulants should be taken early to avoid insomnia. St. Johns Wort can be taken at a separate time. Stimulating botanicals (guarana, yerba mate) amplify cardiovascular effects — use caution. Calming adaptogens (ashwagandha, lemon balm) can balance stimulant side effects when taken in the afternoon.
Higher risk for: those with cardiovascular conditions, hypertension, anxiety disorders, history of seizures, concurrent caffeine or sympathomimetic use, elderly, or those with hyperthyroidism.
Monitor cardiovascular function when combining St. Johns Wort with Amphetamine/Dextroamphetamine. Watch for: elevated heart rate, high blood pressure, heart palpitations, chest tightness, anxiety, insomnia, tremors, or excessive sweating. Check pulse and blood pressure regularly during the first weeks. When to seek emergency help: Chest pain, irregular or racing heartbeat, shortness of breath, severe headache, vision changes, fainting, or signs of psychosis (hallucinations, paranoia). Do not adjust doses without medical guidance.
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.
Safe combination at standard doses. Continue your medication as prescribed. Inform your doctor or pharmacist that you are using both, so they can monitor for any changes over time.
St. Johns Wort and Amphetamine/Dextroamphetamine are safe to take together. No adverse interactions have been reported in medical literature.
Take Amphetamine/Dextroamphetamine in the morning — stimulants should be taken early to avoid insomnia. St. Johns Wort can be taken at a separate time. Stimulating botanicals (guarana, yerba mate) amplify cardiovascular effects — use caution. Calming adaptogens (ashwagandha, lemon balm) can balance stimulant side effects when taken in the afternoon.
Monitor cardiovascular function when combining St. Johns Wort with Amphetamine/Dextroamphetamine. Watch for: elevated heart rate, high blood pressure, heart palpitations, chest tightness, anxiety, insomnia, tremors, or excessive sweating. Check pulse and blood pressure regularly during the first weeks. When to seek emergency help: Chest pain, irregular or racing heartbeat, shortness of breath, severe headache, vision changes, fainting, or signs of psychosis (hallucinations, paranoia). Do not adjust doses without medical guidance.
Safe combination at standard doses. Continue your medication as prescribed. Inform your doctor or pharmacist that you are using both, so they can monitor for any changes over time.
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).