Can you take Levothyroxine with Uloric?
No drug interactions found, but 15 warnings to review for the following 2 drugs:
- levothyroxine
- Uloric (febuxostat)
Drug interactions
There were no interactions found between levothyroxine and Uloric. However, this does not necessarily mean no interactions exist. Always consult your healthcare provider.
Food/lifestyle interactions
Moderate food/lifestyle interactions
Moderate:
levothyroxine Food/Lifestyle
Applies to: levothyroxine
The timing of meals relative to your oral levothyroxine dose can affect the absorption of the medication. Therefore, levothyroxine should be taken on a consistent schedule with regard to time of day and relation to meals to avoid large fluctuations in blood levels, which may alter its effects. In addition, absorption of levothyroxine may be decreased and/or delayed by foods such as soybean flour, cotton seed meal, walnuts, dietary fiber, calcium, calcium fortified juices and grapefruit or grapefruit juice. These foods should be avoided within several hours of dosing if possible. 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.
Moderate:
levothyroxine multivitamins with minerals
Applies to: levothyroxine
Using multivitamins with minerals together with levothyroxine may decrease the effects of levothyroxine. You should separate the administration of levothyroxine and multivitamins with minerals by at least 4 hours. If your doctor does prescribe these medications together, you may need a dose adjustment or special test to safely use both medications. 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
13 potential interactions Applies to: 13 conditions, including High Blood Pressure, Seizures, Hyperthyroidism, Heart Disease, and Diabetes Insipidus.
Adrenal Insufficiency
Major:
levothyroxine
Levothyroxine has a major potential interaction with Adrenal Insufficiency.
The use of thyroid hormones is contraindicated in patients with uncorrected adrenal insufficiency. Thyroid hormones increase tissue demand for adrenocortical hormones and may precipitate acute adrenal crisis. In patients with controlled adrenal insufficiency or other endocrine disorders, therapy for these concomitant disorders may need to be adjusted following thyroid replacement, since hypothyroidism often obscure or diminish the signs and symptoms of these conditions. Clinical monitoring of thyroid and adrenal function as well as any other appropriate endocrine function is recommended during thyroid hormone therapy.
Cardiovascular Conditions and Disorders
Moderate:
Uloric
The febuxostat in Uloric has a moderate potential interaction with Cardiovascular Conditions and Disorders.
Major adverse cardiovascular events (cardiovascular deaths, non- fatal myocardial infarctions and non- fatal strokes), were reported during clinical trials with some antihyperuricemic agents, such as febuxostat and lesinurad. Although a causal relationship has not been established, caution is advised when used in patients with cardiovascular disease. Monitoring for signs or symptoms of myocardial infarction or stroke is recommended.
Diabetes Insipidus
Moderate:
levothyroxine
Levothyroxine has a moderate potential interaction with Diabetes Insipidus.
Since hypothyroidism often obscure or diminish the signs and symptoms of endocrine disorders such as diabetes mellitus or diabetes insipidus, thyroid replacement therapy may aggravate the intensity of symptoms associated with these conditions. Patients with endocrine disorders should be monitored more closely during thyroid hormone therapy, and their medication regimen adjusted accordingly. If thyroid medication is later discontinued, a downward readjustment of insulin or oral hypoglycemic agent may be necessary in patients with diabetes mellitus to avoid hypoglycemia.
Diabetes Mellitus
Moderate:
levothyroxine
Levothyroxine has a moderate potential interaction with Diabetes Mellitus.
Since hypothyroidism often obscure or diminish the signs and symptoms of endocrine disorders such as diabetes mellitus or diabetes insipidus, thyroid replacement therapy may aggravate the intensity of symptoms associated with these conditions. Patients with endocrine disorders should be monitored more closely during thyroid hormone therapy, and their medication regimen adjusted accordingly. If thyroid medication is later discontinued, a downward readjustment of insulin or oral hypoglycemic agent may be necessary in patients with diabetes mellitus to avoid hypoglycemia.
Heart Disease
Major:
levothyroxine
Levothyroxine has a major potential interaction with Heart Disease.
Thyroid hormones cause increases in myocardial contractility and heart rate as a result of increased metabolic demands and oxygen consumption. Therapy with thyroid hormones should be administered cautiously and initiated at reduced dosages in patients with cardiovascular disorders such as angina, coronary artery disease, and hypertension. Clinical monitoring of cardiovascular function is recommended. If chest pain or exacerbation of cardiovascular disease occurs, the dosage of thyroid hormone should be reduced, even at the expense of achieving euthyroid state. Thyroid hormones should not be administered to patients with an acute myocardial infarction that is not complicated by hypothyroidism.
High Blood Pressure
Major:
levothyroxine
Levothyroxine has a major potential interaction with High Blood Pressure.
Thyroid hormones cause increases in myocardial contractility and heart rate as a result of increased metabolic demands and oxygen consumption. Therapy with thyroid hormones should be administered cautiously and initiated at reduced dosages in patients with cardiovascular disorders such as angina, coronary artery disease, and hypertension. Clinical monitoring of cardiovascular function is recommended. If chest pain or exacerbation of cardiovascular disease occurs, the dosage of thyroid hormone should be reduced, even at the expense of achieving euthyroid state. Thyroid hormones should not be administered to patients with an acute myocardial infarction that is not complicated by hypothyroidism.
Hyperthyroidism
Major:
levothyroxine
Levothyroxine has a major potential interaction with Hyperthyroidism.
The use of thyroid hormones is contraindicated in patients with untreated thyrotoxicosis of any etiology, since thyroid hormones may exacerbate the condition.
Lesch-Nyhan Syndrome
Major:
Uloric
The febuxostat in Uloric has a major potential interaction with Lesch-Nyhan Syndrome.
No studies with febuxostat or lesinurad have been conducted in patients with secondary hyperuricemia (including organ transplant recipients). The use of these drugs is contraindicated in patients where the uric acid formation is greatly increased, such as patients with malignant disease, tumor lysis syndrome or Lesch-Nyhan syndrome.
Liver Disease
Moderate:
Uloric
The febuxostat in Uloric has a moderate potential interaction with Liver Disease.
No studies have been conducted in patients with severe hepatic impairment (Child-Pugh Class C), therefore caution should be exercised if using febuxostat or lesinurad on these patients. No dose adjustment is necessary in patients with mild or moderate hepatic impairment.
Organ Transplant
Major:
Uloric
The febuxostat in Uloric has a major potential interaction with Organ Transplant.
No studies with febuxostat or lesinurad have been conducted in patients with secondary hyperuricemia (including organ transplant recipients). The use of these drugs is contraindicated in patients where the uric acid formation is greatly increased, such as patients with malignant disease, tumor lysis syndrome or Lesch-Nyhan syndrome.
Renal Dysfunction
Moderate:
Uloric
The febuxostat in Uloric has a moderate potential interaction with Renal Dysfunction.
There are insufficient data on the use of febuxostat in patients with severe renal impairment (ClCr less than 30 mL/min), therefore caution should be exercised on these patients. No dose adjustment is needed in patients with mild or moderate renal impairment.
Seizures
Moderate:
levothyroxine
Levothyroxine has a moderate potential interaction with Seizures.
Thyroid hormones may alter the seizure threshold. Seizures have been reported rarely following the initiation of levothyroxine therapy. Therapy with thyroid hormones should be administered cautiously in patients predisposed to seizures.
Tumor Lysis Syndrome
Major:
Uloric
The febuxostat in Uloric has a major potential interaction with Tumor Lysis Syndrome.
No studies with febuxostat or lesinurad have been conducted in patients with secondary hyperuricemia (including organ transplant recipients). The use of these drugs is contraindicated in patients where the uric acid formation is greatly increased, such as patients with malignant disease, tumor lysis syndrome or Lesch-Nyhan syndrome.
More resources
levothyroxine
A total of 254 drugs are known to interact with levothyroxine.
- Levothyroxine is in the drug class thyroid drugs.
- Levothyroxine is used to treat the following conditions:
Uloric
A total of 49 drugs are known to interact with Uloric.
- Uloric is in the drug class antihyperuricemic agents.
- Uloric is used to treat Gout.
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.