
Tacrolimus by LC-MS/MS near me in Mumbai










The Tacrolimus by LC-MS/MS is a blood test that is used to monitor levels of tacrolimus, an immunosuppressive medication commonly prescribed to prevent organ rejection in transplant recipients. It helps doctors ensure that patients maintain optimal levels of tacrolimus in their blood, minimizing the risk of transplant rejection while avoiding toxicity. This test is widely available in Mumbai with Tata 1mg labs at an affordable price.
The Tacrolimus by LC-MS/MS test is particularly useful for individuals who have undergone an organ transplant. This test helps doctors to evaluate patient compliance and provides valuable information to adjust medication dosages accordingly. It is typically performed at regular intervals post-transplant to ensure that patients achieve and maintain the right levels of tacrolimus in the body. The frequency of the Tacrolimus by LC-MS/MS test varies based on factors like patient response, type of transplant, time since transplant, patient's age, and overall health. Also, it is done when there are changes in the dosages or if there are symptoms of side effects, toxicity, or organ rejection.
Before the Tacrolimus by LC-MS/MS test, a brief medical history is needed, including the timing of transplantation, drug dosage, and amount of the last tacrolimus dose. The test measures the ‘trough’ level of tacrolimus, just before the next dose, for consistent and accurate testing. Therefore, it is advised to provide the blood sample just before the scheduled dose (generally 12 hours post-dose, or prior to the next dose), unless otherwise specified by a physician, as timing of blood collection can impact the levels of the medicine in the blood. Avoid excessive alcohol consumption the day before the test, as it may affect the test results. Also, taking tacrolimus with meals can impact its absorption, and changes in the route of administration, or switching between the brands of the medicine, can also impact the levels of tacrolimus in the body. Follow a doctor's instructions carefully for a favorable outcome.








What does Tacrolimus by LC-MS/MS measure?
The Tacrolimus by LC-MS/MS test is used to measure the levels of tacrolimus in the blood. This test helps determine whether the concentration of tacrolimus falls within the therapeutic range. This test uses a special method called LC-MS/MS (liquid chromatography-mass spectrometry) to measure very small amounts of tacrolimus in the blood. It is highly accurate and helps doctors know exactly how much of the medicine is in the body.
This is important because having low levels indicates that the dosage of the medicine has not reached the optimum level required to show results, or may occur if the dosage is not taken properly. High levels indicate that the levels have now crossed the required threshold, and may cause adverse effects and organ damage. This ensures doctors can adjust the dose safely, providing the right balance between effectiveness and safety, especially in transplant patients who need tight drug level monitoring.





FAQs related to Tacrolimus by LC-MS/MS in Mumbai
- Araya AA, Tasnif Y. Tacrolimus. [Updated 2023 May 29]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-. Available from:
- Warty V, Zuckerman S, Venkataramanan R, Lever J, Chao J, Mckaveney T, Fung J, Starzl T. Tacrolimus analysis: a comparison of different methods and matrices. Ther Drug Monit. 1995 Apr;17(2):159-67. [Accessed 15 Jul. 2025]. Available From:
- Yin S, Song T, Jiang Y, Li X, Fan Y, Lin T. Tacrolimus Trough Level at the First Month May Predict Renal Transplantation Outcomes Among Living Chinese Kidney Transplant Patients: A Propensity Score-Matched Analysis. Ther Drug Monit. 2019 Jun;41(3):308-316. [Accessed 15 Jul. 2025]. Available From:
- Kalt DA. Tacrolimus: A Review of Laboratory Detection Methods and Indications for Use. Lab Med. 2017 Nov 8;48(4):e62-e65. [Accessed 15 Jul. 2025]. Available From:
- Massoglia G, Ramnarine M, Schuh MJ. Tacrolimus Therapeutic Drug Monitoring in Kidney Transplant Patients Before and After Pharmacist Post-transplant Consults. Innov Pharm. 2021 Jun 10;12(3):10.24926/iip.v12i3.4212. [Accessed 15 Jul. 2025]. Available From:
- Nakamura A, Amada N, Haga I, Tokodai K, Kashiwadate T. Effects of elevated tacrolimus trough levels in association with infectious enteritis on graft function in renal transplant recipients. Transplant Proc. 2014;46(2):592-4. [Accessed 15 Jul. 2025]. Available From:
- Hsiao CY, Ho MC, Ho CM, Wu YM, Lee PH, Hu RH. Long-Term Tacrolimus Blood Trough Level and Patient Survival in Adult Liver Transplantation. J Pers Med. 2021 Feb 1;11(2):90. [Accessed 15 Jul. 2025]. Available From:
- Hieu TB, Dung NM, Toan PQ, Kien TQ, Van Duc N, Thang LV, Van Tran P, Hop VQ, Phuong NM, Ben NH, Van Khoi N, Nghia TT, Dung VD, Van Thinh N, Hang DTT, Van Men C, Long DD, Su HX. Determination of tacrolimus in human whole blood in kidney transplant recipients using a rapid and specific LC-MS/MS method. J Clin Lab Anal. 2023 Aug;37(15-16):e24958. [Accessed 15 Jul. 2025]. Available From:
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