Supplement stacks / Levodopa + Vitamin B12
Can You Take Levodopa with Vitamin B12?
Levodopa and Vitamin B12: one interaction flagged, scored 7/10 (medium risk). The count and score come from an AI-written analysis checked against our interaction rules, which can only make it stricter. Not medical advice.
Safety at a glance
Medium riskThis score comes from an AI-written analysis of the pair. Our interaction rules check it and can only make it stricter, never milder. Informational only: it can't account for your medications, conditions, or genetics.
What the AI-written analysis says
Levodopa is a medication used primarily for Parkinson's disease, while Vitamin B12 is a vitamin important for nerve function and red blood cell production. There are no well-documented interactions between these two substances, but caution is advised due to the potential for altered absorption of levodopa when taken with certain vitamins.
Levodopa is a prescription medication. This page describes publicly documented interactions — it can't see your dose, your other prescriptions, or your labs. Discuss any supplement with the prescriber or pharmacist who manages this medication before combining.
Known interactions
There is a theoretical risk that Vitamin B12 may affect the absorption of levodopa; it is advisable to space their intake by at least 2 hours.
Levodopa
From the AI-written analysis.
Generally well-tolerated but may cause side effects like nausea and dizziness.
Typical dosage: As prescribed or as directed on the label
- Nausea
- Dizziness
- Dyskinesia
- Monitor for side effects; consult healthcare provider for any concerns.
Vitamin B12
From the AI-written analysis.
Generally safe with low toxicity; rare side effects include mild diarrhea.
Typical dosage: Typically 2.4 mcg per day for adults; follow manufacturer guidelines.
- Mild diarrhea
- Nausea
- Headache
- Consult healthcare provider if you have a history of B12 deficiency.
Timing
Take as prescribed — we do not schedule prescription medications. Follow the label or your prescriber, and ask your pharmacist before changing when you take it.
Watch out for
- Consider spacing the intake of levodopa and Vitamin B12 by at least 2 hours to avoid potential absorption issues.
Frequently asked questions
Can you take Levodopa and Vitamin B12 together?
Levodopa and Vitamin B12: one interaction flagged, scored 7/10 (medium risk). The count and score come from an AI-written analysis checked against our interaction rules, which can only make it stricter. Not medical advice.
What score does the Levodopa and Vitamin B12 combination get?
The Levodopa and Vitamin B12 combination is scored 7/10 (medium risk). The score comes from an AI-written analysis checked against our interaction rules, which can only make it stricter. Not medical advice. Always confirm with a healthcare professional.
When should you take Levodopa and Vitamin B12?
Take as prescribed — we do not schedule prescription medications. Follow the label or your prescriber, and ask your pharmacist before changing when you take it.
What should you watch out for when combining Levodopa and Vitamin B12?
Consider spacing the intake of levodopa and Vitamin B12 by at least 2 hours to avoid potential absorption issues.
Check your full list
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Check my listWhat your DNA adds
Some genes in a raw 23andMe or AncestryDNA file are linked to how the body handles nutrients. The DNA report says what yours are linked to and, where there is one, which blood test would tell you more.
See the DNA reportRelated combinations
Not medical advice
This analysis is based on general supplement information. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult qualified healthcare providers before starting any supplement regimen.
AI-written analysis generated September 2, 2026, checked by our interaction rules · How our analysis works