Drug Interactions between D3 and fesoterodine
This report displays the potential drug interactions for the following 2 drugs:
- D3 (cholecalciferol)
- fesoterodine
Interactions between your drugs
No interactions were found between D3 and fesoterodine. However, this does not necessarily mean no interactions exist. Always consult your healthcare provider.
D3
A total of 91 drugs are known to interact with D3.
- D3 is in the drug class vitamins.
- D3 is used to treat Vitamin D Deficiency.
fesoterodine
A total of 320 drugs are known to interact with fesoterodine.
- Fesoterodine is in the drug class urinary antispasmodics.
- Fesoterodine is used to treat the following conditions:
Drug and food interactions
cholecalciferol food
Applies to: D3 (cholecalciferol)
MONITOR: Additive effects and possible toxicity (e.g., hypercalcemia, hypercalciuria, and/or hyperphosphatemia) may occur when patients using vitamin D and/or vitamin D analogs ingest a diet high in vitamin D, calcium, and/or phosphorus. The biologically active forms of vitamin D stimulate intestinal absorption of calcium and phosphorus. This may be helpful in patients with hypocalcemia and/or hypophosphatemia. However, sudden increases in calcium or phosphorus consumption due to dietary changes could precipitate hypercalcemia and/or hyperphosphatemia. Patients with certain disease states, such as impaired renal function, may be more susceptible to toxic side effects like ectopic calcification. On the other hand, if dietary calcium is inadequate for the body's needs, the active form of vitamin D will stimulate osteoclasts to pull calcium from the bones. This may be detrimental in a patient with reduced bone density.
MANAGEMENT: Given the narrow therapeutic index of vitamin D and vitamin D analogs, the amounts of calcium, phosphorus, and vitamin D present in the patient's diet may need to be taken into consideration. Specific dietary guidance should be discussed with the patient and regular lab work should be monitored as indicated. Calcium, phosphorus, and vitamin D levels should be kept within the desired ranges, which may differ depending on the patient's condition. Patients should also be counseled on the signs and symptoms of hypervitaminosis D, hypercalcemia, and/or hyperphosphatemia.
References (10)
- (2023) "Product Information. Drisdol (ergocalciferol)." Validus Pharmaceuticals LLC
- (2024) "Product Information. Fultium-D3 (colecalciferol)." Internis Pharmaceuticals Ltd
- (2024) "Product Information. Ostelin Specialist Range Vitamin D (colecalciferol)." Sanofi-Aventis Healthcare Pty Ltd T/A Sanofi Consumer Healthcare
- (2021) "Product Information. Rocaltrol (calcitriol)." Atnahs Pharma UK Ltd
- (2019) "Product Information. Calcitriol (calcitriol)." Strides Pharma Inc.
- (2024) "Product Information. Calcitriol (GenRx) (calcitriol)." Apotex Pty Ltd
- (2022) "Product Information. Ergocalciferol (ergocalciferol)." RPH Pharmaceuticals AB
- (2020) "Product Information. Sandoz D (cholecalciferol)." Sandoz Canada Incorporated
- Fischer V, Haffner-Luntzer M, Prystaz K, et al. (2024) Calcium and vitamin-D deficiency marginally impairs fracture healing but aggravates posttraumatic bone loss in osteoporotic mice. https://www.nature.com/articles/s41598-017-07511-2
- National Institutes of Health Office of Dietary Supplements (2024) Vitamin D https://ods.od.nih.gov/factsheets/VitaminD-HealthProfessional/#h37
fesoterodine food
Applies to: fesoterodine
MONITOR: Coadministration with moderate inhibitors of CYP450 3A4 such as grapefruit juice may increase the plasma concentrations of fesoterodine's active metabolite, 5-hydroxymethyl tolterodine, which is partially metabolized by the isoenzyme. The possibility of prolonged and/or increased pharmacologic effects of fesoterodine should be considered. Because 5-hydroxymethyl tolterodine is also metabolized by CYP450 2D6, the clinical significance of the interaction may be greater in patients who are CYP450 2D6-deficient, or so-called poor metabolizers of CYP450 2D6 (approximately 7% of Caucasians and less than 2% of Asians and individuals of African descent) who may rely more on the 3A4 metabolic pathway for clearance of the drug.
MANAGEMENT: Caution is advised if fesoterodine is administered with grapefruit or grapefruit juice. Patients should be advised to notify their physician if they experience potential adverse effects of fesoterodine such as irregular heartbeat, blurry vision, difficulty urinating, dry mouth, headache, drowsiness, dizziness, gastrointestinal upset, or constipation.
References (1)
- (2008) "Product Information. Toviaz (fesoterodine)." Pfizer U.S. Pharmaceuticals Group
Therapeutic duplication warnings
No warnings were found for your selected drugs.
Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.
See also
Drug Interaction Classification
Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. | |
No interaction information available. |
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
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