SAFE — No Known Interaction
🟢 SAFE — Amphetamine/Dextroamphetamine and Levothyroxine can be taken together safely.
Evidence level: MODERATE
Amphetamine/Dextroamphetamine and Levothyroxine are safe to take together. No adverse interactions have been reported in medical literature.
No clinically significant interaction between Amphetamine/Dextroamphetamine and Levothyroxine has been identified in FDA drug labeling or major drug interaction databases.
No documented interaction between Amphetamine/Dextroamphetamine and Levothyroxine. Your pharmacist checks for interactions every time you fill a prescription. If you experience any new symptoms after starting Levothyroxine, let your doctor know — they can help determine if it's related to your medication combination.
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 cardiovascular function when combining Amphetamine/Dextroamphetamine with Levothyroxine. 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.
These medications are safe to take together at standard doses. Continue taking as prescribed and keep your pharmacist informed of your complete medication list.
Amphetamine/Dextroamphetamine 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 cardiovascular function when combining Amphetamine/Dextroamphetamine with Levothyroxine. 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.
These medications are safe to take together at standard doses. Continue taking as prescribed and keep your pharmacist informed of your complete medication list.
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).