levothyroxine absortption levothyroxine absorption soy milk
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Healthy volunteers 2. Aged 18-45 years 3. Written informed consent by volunteer
Exclusion criteria
Exclusion criteria: 1. Adults with recent acute illness, cardiovascular disease/abnormal electrocardiogram, renal insufficiency (serum creatinine >1.5 mg/dL), abnormal liver function (AST and/or ALT > 3 times of upper normal limit) 2. Use of certain medications that interfere with levothyroxine absorption such as iron, calcium, proton pump inhibitor, sucralfate, aluminium hydroxide, cholestyramine; affect with levothyroxine metabolism such as phenytoin, carbamazepine, phenobarbital, rifampicin, tyrosine kinase inhibitor 3. Use of certain medications that alter thyroid hormone levels such as amiodaraone, lithium, interfereon-alpha, alemtuzumab, glucocorticoid, somatostatin 4. Use of certain medications that affect with thyroxine-binding globulin such as estrogen, raloxifene, tamoxifen, mitotane, fluorouracil, methadone, heroin, androgen, nicotinic acid 5. Adults who had intestinal absorption problem or history of gastric/intestinal surgery 6. Adults with allergy to soy and/or levothyroxine 7. Pregnant women/lactating women 8. Adults who has abnormal TSH concentrations 9. Denied to participate in the study
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Levothyroxine absorption test October 2019-September 2020 Area under the curve (AUC) of serum total T4 concentration | — |
Secondary
| Measure | Time frame |
|---|---|
| analgesic usage until patient get operative fixation morphine dose requirement,complication until patient get operative fixation observe ex pressure sore peroneal nerve palsy | — |
Countries
Thailand
Contacts
Division of Endocrinology and Metabolism, Department of Medicine, Faculty of Medicine Ramathibodi Ho