Can you take Tobradex ST with Vitamin D3?
No drug interactions found, but 11 warnings to review for the following 2 drugs:
- Tobradex ST (dexamethasone/tobramycin ophthalmic)
- Vitamin D3 (cholecalciferol)
Drug interactions
There were no interactions found between Tobradex ST and Vitamin D3. However, this does not necessarily mean no interactions exist. Always consult your healthcare provider.
Food/lifestyle interactions
Moderate food/lifestyle interactions
Moderate:
cholecalciferol Food/Lifestyle
Applies to: Vitamin D3 (cholecalciferol)
Treatment with cholecalciferol may require you to adjust your dietary intake of foods which contain natural or added calcium, phosphate (organic and inorganic), and vitamin D or grapefruit. Ingesting too much vitamin D or having elevated calcium and/or phosphorus levels in the blood and urine can lead to toxic effects, such as having an irregular heart rhythm, seizures, kidney stones, and eventual calcification of your blood vessels, cornea and/or the soft tissues in your body. Consumption of grapefruit and grapefruit juice may also alter the blood levels and effects of cholecalciferol. Your doctor will monitor the levels of calcium and phosphorus in your blood during treatment with cholecalciferol. Please speak with your healthcare team to determine if you require a specialized diet, particularly if you have reduced kidney function, and to discuss any other questions or concerns you have. You may require additional monitoring or a dose adjustment of cholecalciferol if your diet changes. Fortified foods will state on their labeling how much calcium, phosphate, and/or vitamin D has been added. The National Institutes of Health, Office of Dietary Supplements also provides information on which foods contain calcium, phosphorus, and vitamin D. You should avoid abrupt changes in your dietary calcium intake and seek medical attention if you experience early symptoms of vitamin D intoxication such as weakness, fatigue, headache, drowsiness, vertigo, ringing in the ears, loss of appetite, nausea, vomiting, constipation, dry mouth, metallic taste, muscle pain, bone pain, muscle incoordination, and low muscle tone. Late symptoms may include frequent urination, excessive thirst, weight loss, conjunctivitis ("pink eye"), light sensitivity, runny nose, itching, increased body temperature, and irregular heart rhythm. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
Disease interactions
10 potential interactions Applies to: 10 conditions, including Arrhythmia, Eye Conditions, Cataract, Liver Disease, and Glaucoma/Intraocular Hypertension.
Arrhythmia
Moderate:
Vitamin D3
The cholecalciferol in Vitamin D3 has a moderate potential interaction with Arrhythmia.
Vitamin D analogs function to increase serum calcium concentrations and can exacerbate arrhythmias, particularly in patients receiving cardiac glycosides. Therapy with vitamin D analogs should be administered cautiously in patients with or predisposed to cardiac arrhythmias. Clinical monitoring of serum electrolyte concentrations and cardiac function is recommended.
Biliary Obstruction
Moderate:
Vitamin D3
The cholecalciferol in Vitamin D3 has a moderate potential interaction with Biliary Obstruction.
Vitamin D analogs are fat soluble and oral formulations require bile for adequate intestinal absorption. Hepatic and/or biliary dysfunction decrease the absorption of vitamin D analogs. Metabolites of vitamin D analogs are primarily excreted in bile and feces. Ergocalciferol, cholecalciferol, and dihydrotachysterol undergo hepatic hydroxylation during metabolic activation. Hepatic impairment can alter the metabolic and therapeutic activity of certain vitamin D analogs. Alternative vitamin D analogs such as calcitriol (active form) may be considered in patients with compromised hepatic function.
Cataract
Major:
Tobradex ST
The dexAMETHasone ophthalmic in Tobradex ST has a major potential interaction with Cataract.
Prolonged use of corticosteroids may cause posterior subcapsular cataracts and elevated intraocular pressure, the latter of which may lead to glaucoma and/or damage to the optic nerves. Therapy with ophthalmic corticosteroids should be administered cautiously in patients with a history of cataracts, glaucoma, or increased intraocular pressure. If these agents are used for more than 10 days, the manufacturers recommend that intraocular pressure be routinely monitored, including in children. The equatorial and posterior subcapsular portions of the lens should be examined for changes.
Eye Conditions
Major:
Tobradex ST
The dexAMETHasone ophthalmic in Tobradex ST has a major potential interaction with Eye Conditions.
The use of ophthalmic corticosteroids is contraindicated in most viral diseases of the cornea and conjunctiva, including epithelial herpes simplex keratitis (dendritic keratitis), vaccinia, and varicella; fungal diseases of ocular structures; mycobacterial infections, including tuberculosis, of the eye; and any acute, purulent, untreated ocular infections. Corticosteroids may decrease host resistance to infectious agents, thus prolonging the course and/or exacerbating the severity of the infection while encouraging the development of new or secondary infection. In addition, administration of ophthalmic corticosteroids in severe ocular disease, especially acute herpes simplex keratitis, may lead to excessive corneal and scleral thinning, increasing the risk for perforation. In less serious ocular infections, therapy with ophthalmic corticosteroids may be administered but only with caution and accompanied by appropriate antimicrobial agents. Besides compromising host immune response, corticosteroids may also mask the symptoms of infection, thus hindering the recognition of potential ineffectiveness of the antibiotic therapy. If infection does not improve or becomes worse during administration of an ophthalmic corticosteroid, the drug should be discontinued and other appropriate therapy initiated.
Glaucoma/Intraocular Hypertension
Major:
Tobradex ST
The dexAMETHasone ophthalmic in Tobradex ST has a major potential interaction with Glaucoma/Intraocular Hypertension.
Prolonged use of corticosteroids may cause posterior subcapsular cataracts and elevated intraocular pressure, the latter of which may lead to glaucoma and/or damage to the optic nerves. Therapy with ophthalmic corticosteroids should be administered cautiously in patients with a history of cataracts, glaucoma, or increased intraocular pressure. If these agents are used for more than 10 days, the manufacturers recommend that intraocular pressure be routinely monitored, including in children. The equatorial and posterior subcapsular portions of the lens should be examined for changes.
Hypercalcemia
Major:
Vitamin D3
The cholecalciferol in Vitamin D3 has a major potential interaction with Hypercalcemia.
Vitamin D analogs such as calciferol and ergocalciferol should not be given to patients with hypercalcemia, malabsorption syndrome, or evidence of vitamin D toxicity.
Liver Disease
Moderate:
Vitamin D3
The cholecalciferol in Vitamin D3 has a moderate potential interaction with Liver Disease.
Vitamin D analogs are fat soluble and oral formulations require bile for adequate intestinal absorption. Hepatic and/or biliary dysfunction decrease the absorption of vitamin D analogs. Metabolites of vitamin D analogs are primarily excreted in bile and feces. Ergocalciferol, cholecalciferol, and dihydrotachysterol undergo hepatic hydroxylation during metabolic activation. Hepatic impairment can alter the metabolic and therapeutic activity of certain vitamin D analogs. Alternative vitamin D analogs such as calcitriol (active form) may be considered in patients with compromised hepatic function.
Malabsorption Syndrome
Major:
Vitamin D3
The cholecalciferol in Vitamin D3 has a major potential interaction with Malabsorption Syndrome.
Vitamin D analogs such as calciferol and ergocalciferol should not be given to patients with hypercalcemia, malabsorption syndrome, or evidence of vitamin D toxicity.
Phosphate Imbalance
Moderate:
Vitamin D3
The cholecalciferol in Vitamin D3 has a moderate potential interaction with Phosphate Imbalance.
Vitamin D analogs administered in the presence of hyperphosphatemia can result in precipitation of calcium-phosphate deposits within the vascular or renal systems or other soft tissue calcifications. A solubility product (Serum Calcium X Phosphate) should not exceed 70. Serum electrolyte concentrations should be corrected prior to vitamin D analog therapy and monitored during therapy.
Renal Dysfunction
Moderate:
Vitamin D3
The cholecalciferol in Vitamin D3 has a moderate potential interaction with Renal Dysfunction.
Ergocalciferol and cholecalciferol undergo renal biotransformation during metabolic activation. Renal impairment can alter metabolic and therapeutic activity of certain vitamin D analogs. Alternative vitamin D analogs such as dihydrotachysterol (hepatic activation) and calcitriol (active form) may be considered in patients with compromised renal function.
More resources
Tobradex ST
A total of 145 drugs are known to interact with Tobradex ST.
- Tobradex st is in the drug class ophthalmic steroids with anti-infectives.
- Tobradex st is used to treat the following conditions:
Vitamin D3
A total of 116 drugs are known to interact with Vitamin D3.
- Vitamin d3 is in the drug class vitamins.
- Vitamin d3 is used to treat the following conditions:
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.