Supplement stacks / Tacrolimus + Vitamin D3
Can You Take Tacrolimus with Vitamin D3?
Tacrolimus and Vitamin D3: 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
This 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
Taking Tacrolimus with Vitamin D3 may be safe, but caution is advised due to potential interactions. Tacrolimus can affect calcium metabolism, and Vitamin D3 enhances calcium absorption, which could lead to hypercalcemia. Monitoring is recommended.
Tacrolimus 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
Suggestion: Monitor calcium levels and adjust Vitamin D3 dosage if necessary.
Tacrolimus
From the AI-written analysis.
Effective immunosuppressant; requires careful monitoring of blood levels and potential interactions.
Typical dosage: As prescribed or as directed on the label
- Kidney toxicity
- Hypertension
- Infection risk
- Monitor kidney function and blood pressure; adjust dosages based on blood level monitoring.
Vitamin D3
From the AI-written analysis.
Generally safe when taken within recommended dosages; however, caution is needed in patients on immunosuppressants like Tacrolimus.
Typical dosage: 1000-4000 IU daily
- Nausea
- Vomiting
- Constipation
- Hypercalcemia (rare)
- Consult healthcare provider before starting; monitor calcium levels regularly.
Timing
Taking Vitamin D3 in the morning with food may enhance absorption and reduce potential gastrointestinal side effects.
Recommendations
- Consult with a healthcare provider before starting Vitamin D3.
- Consider monitoring calcium levels regularly while on Tacrolimus and Vitamin D3.
Watch out for
- Monitor for signs of hypercalcemia (e.g., nausea, vomiting, confusion).
Frequently asked questions
Can you take Tacrolimus and Vitamin D3 together?
Tacrolimus and Vitamin D3: 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 Tacrolimus and Vitamin D3 combination get?
The Tacrolimus and Vitamin D3 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 Tacrolimus and Vitamin D3?
Taking Vitamin D3 in the morning with food may enhance absorption and reduce potential gastrointestinal side effects.
What should you watch out for when combining Tacrolimus and Vitamin D3?
Monitor for signs of hypercalcemia (e.g., nausea, vomiting, confusion).
Check your full stack
Taking more than these two? Add everything you take, medicines included, to your list. We check each supplement on your list against the rest of it, and name anything we could not check. Free, and you don’t need an account.
Analyze my stackWhat 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
AI-written analysis generated August 11, 2026, checked by our interaction rules · How our analysis works