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Sirolimus

Sirolimus is an mTOR inhibitor immunosuppressant indicated for the prophylaxis of organ rejection in patients aged ≥13 years receiving renal transplan.

Checked against the official label · Updated

Prescription medicine Oral Safety alerts on record

Sirolimus: quick answers

Used for
Sirolimus is an mTOR inhibitor immunosuppressant indicated for the prophylaxis of organ rejection in patients aged ≥13 years receiving renal transplants: Patients at low- to moderate-immunologic risk: Use initially with cyclosporine (CsA) and corticosteroids.
Children
With food?
Sirolimus Oral Solution is to be administered orally once daily, consistently with or without food [see Dosage and Administration , Clinical Pharmacology ].
Prescription
Prescription medicine in the United States; rules differ by country.

From the official label (Apr 2024). Your prescription and pharmacist come first.

How to use Sirolimus

What the official label says. If a doctor prescribed it, follow the prescription. Your pack's leaflet comes first if it is different.

Serious warning: IMMUNOSUPPRESSION, USE IS NOT RECOMMENDED IN LIVER OR LUNG TRANSPLANT PATIENTS Increased susceptibility to infection and the possible development of lymphoma and other malignancies may result from immunosuppression Increased susceptibility to infection and the possible development of lymphoma may result from immunosuppression. …
Who it is for

Sirolimus is an mTOR inhibitor immunosuppressant indicated for the prophylaxis of organ rejection in patients aged ≥13 years receiving renal transplants: Patients at low- to moderate-immunologic risk: Use initially with cyclosporine (CsA) and corticosteroids. CsA withdrawal is recommended 2 - 4 months after transplantation ( 1.1 ). Patients at high-immunologic risk: Use in combination with CsA and corticosteroids for the first 12 months following transplantation ( 1.1 ). Safety and efficacy of CsA withdrawal has not been established in high risk patients ( 1.1 , 1.2 , 14.3 ). Sirolimus is an mTOR inhibitor indicated for the treatment of patients with lymphangioleiomyomatosis ( 1.3 ). …

How to take it and how often
  • Sirolimus Oral Solution is to be administered orally once daily, consistently with or without food [see Dosage and Administration , Clinical Pharmacology ]
  • Renal Transplant Patients: Administer once daily by mouth, consistently with or without food
  • Administer the initial dose as soon as possible after transplantation and 4 hours after CsA
  • Adjust the sirolimus maintenance dose to achieve sirolimus trough concentrations within the target-range
  • Hepatic impairment: Reduce maintenance dose in patients with hepatic impairment
  • In renal transplant patients at low-to moderate-immunologic risk: Sirolimus and CsA Combination Therapy: One loading dose of 6 mg on day 1, followed by daily maintenance doses of 2 mg
  • Sirolimus Following CsA Withdrawal: 2-4 months post transplantation, withdraw CsA over 4-8 weeks
  • In renal transplant patients at high-immunologic risk: Sirolimus and CsA Combination Therapy (for the first 12 months post- transplantation): One loading dose of up to 15 mg on day 1, followed by daily maintenance doses of 5 mg
  • Lymphangioleiomyomatosis Patients: Administer once daily by mouth, consistently with or without food
  • Recommended initial sirolimus dose is 2 mg/day
  • Adjust the sirolimus dose to achieve sirolimus trough concentrations between 5-15 ng/mL
  • Hepatic impairment: Reduce maintenance dose in patients with hepatic impairment
  • Therapeutic drug monitoring is recommended for all patients . …
Strengths it comes in

Oral Solution: 60 mg per 60 mL in amber glass bottle ( 3.1 ). 3.1 Sirolimus Oral Solution 60 mg per 60 mL in amber glass bottle.

Children
  • Renal Transplant The safety and efficacy of sirolimus
  • In pediatric patients < 13 years have not been established
  • The safety and efficacy of sirolimus oral solution has been established for prophylaxis of organ rejection in renal transplantation in children ≥ 13 years judged to be at low- to moderate-immunologic risk. …
Older adults

Clinical studies of sirolimus oral solution did not include sufficient numbers of patients ≥ 65 years to determine whether they respond differently from younger patients. Data pertaining to sirolimus trough concentrations suggest that dose adjustments based upon age in geriatric renal patients are not necessary. Differences in responses between the elderly and younger patients have not been identified. …

While you are taking it
  • Advise patients, their families, and their caregivers to read the Medication Guide and Instructions for Use for the Oral Solution and assist them in understanding its contents
  • The complete text of the Medication Guide and Instructions for Use for the Oral Solution are reprinted at the end of the document
  • See FDA-Approved Medication Guide and Instructions for Use for the Oral Solution
  • Dosage Patients should be given complete dosage instructions [ see FDA-Approved Medication Guide ]. …
Talk to a doctor first if
  • Sirolimus Oral Solution is contraindicated in patients with a hypersensitivity to sirolimus [ see Warnings and Precautions ]
  • Hypersensitivity to sirolimus
Medicines it may not mix with

Sirolimus is known to be a substrate for both cytochrome P-450 3A4 (CYP3A4) and p-glycoprotein (P-gp). Inducers of CYP3A4 and P-gp may decrease sirolimus concentrations whereas inhibitors of CYP3A4 and P-gp may increase sirolimus concentrations. Avoid concomitant use with strong CYP3A4/P-gp inducers or strong CYP3A4/P-gp inhibitors that decrease or increase sirolimus concentrations ( 7.4 , 12.3 ). Therapeutic drug monitoring and dose reduction for sirolimus should be considered when sirolimus is co-administered with cannabidiol ( 5.21 , 7.5 ). See full prescribing information for complete list of clinically significant drug interactions ( 12.3 ). …

Warnings

Hypersensitivity Reactions ( 5.4 ) Angioedema ( 5.5 ) Fluid Accumulation and Impairment of Wound Healing ( 5.6 ) Hyperlipidemia ( 5.7 ) Decline in Renal Function ( 5.8 ) Proteinuria ( 5.9 ) Latent Viral Infections ( 5.10 ) Interstitial Lung Disease/Non-Infectious Pneumonitis ( 5.11 ) De Novo Use Without Cyclosporine ( 5.12 ) Increased Risk of Calcineurin Inhibitor-Induced Hemolytic Uremic Syndrome/ Thrombotic Thrombocytopenic Purpura/ Thrombotic Microangiopathy ( 5.13 ) Embryo-Fetal Toxicity: Can cause fetal harm. …

Possible side effects

The following adverse reactions are discussed in greater detail in other sections of the label. Increased susceptibility to infection, lymphoma, and malignancy [ see Boxed Warning, Warnings and Precautions ( 5.1 ) ] Excess mortality, graft loss, and hepatic artery thrombosis in liver transplant patients [ see Boxed Warning, Warnings and Precautions ( 5.2 ) ] Bronchial anastomotic dehiscence in lung transplant patients [ see Boxed Warning, Warnings and Precautions ( 5.3 ) ] Hypersensitivity reactions [ see Warnings and Precautions ( 5.4 ) ] Exfoliative dermatitis [ see Warnings and Precautions ( 5.4 ) ] Angioedema [ see Warnings and Precautions ( 5.5 ) ] Fluid accumulation and impairment of w …

Pregnancy and breastfeeding

8.1 Pregnancy Risk Summary Based on animal studies and the mechanism of action, Sirolimus can cause fetal harm when administered to a pregnant woman [ see Data , Clinical Pharmacology ( 12.1 ) ]. There are limited data on the use of sirolimus during pregnancy; however, these data are insufficient to inform a drug-associated risk of adverse developmental outcomes. …

If you take too much

Reports of overdose with sirolimus have been received; however, experience has been limited. In general, the adverse effects of overdose are consistent with those listed in the adverse reactions section [ see Adverse Reactions ( 6 ) ]. General supportive measures should be followed in all cases of overdose. Based on the low aqueous solubility and high erythrocyte and plasma protein binding of sirolimus, it is anticipated that sirolimus is not dialyzable to any significant extent. In mice and rats, the acute oral LD 50 was greater than 800 mg/kg.

If you miss a dose

Take it when you remember, unless it is nearly time for the next dose. Then skip the missed one. Never take two doses at once to make up for it. Check your leaflet, as some medicines are different.

From the official U.S. FDA label for this active ingredient. Your pack may have a different strength, so always read its leaflet. If a doctor prescribed it, follow the prescription. Ask a pharmacist if you are unsure. Label dated 2024-04-30.

How much Sirolimus costs

In other countries

Prices in other countries are not what you will pay where you live; they show how prices compare.

Brands around the world

Products with Sirolimus as the active ingredient. Names differ between countries.

Registered products

United States (FDA)

SirolimusSIROLIMUS 1 mg/1 · Tablet · American Health Packaging
NDC 68084-915Label
SirolimusSIROLIMUS .5 mg/1 · Tablet, Film Coated · REMEDYREPACK INC.
NDC 70518-4376Label
SirolimusSIROLIMUS 1 mg/1 · Tablet · AvPAK
NDC 50268-718Label
FyarroSIROLIMUS 5 mg/mL · Injection, Powder, Lyophilized, For Suspension · Aadi Bioscience, Inc.
NDC 80803-153Label
SirolimusSIROLIMUS 1 kg/kg · Powder · Hisun Pharmaceutical (Hangzhou) Co., Ltd.
NDC 51187-0010Label

Other countries: check your pack's registration number and we point you to your regulator.

Safety alerts and recalls

Sirolimus Tablets 1mg Tablets 100-count bottle, Rx Only, Distributed by: Dr. Reddy's Laboratories Inc., Princeton, NJ 08540, Made in India, NDC 55111-653-01U.S. FDA Class III
1 May 2024 · Dr. Reddy's Laboratories, Inc. · OngoingFailed Impurities/Degradation Specifications
Fyarro (sirolimus protein-bound particles for injectable suspension (albumin-bound), 100 mg per vial, NDC 80803-153-50, manufactured for Aadi Bioscience, Inc, CA.U.S. FDA Class III
13 Oct 2022 · Aadi Bioscience · TerminatedFailed Stability Specifications
Sirolimus Oral Solution, 1 mg/mL, 60 mL bottle, Rx Only, Manufactured by: Apotex Inc. Toronto, Ontario Canada M9L 1T9 Manufactured for: Apotex Corp. Weston, Florida 33326, NDC 6050U.S. FDA Class III
3 May 2022 · Apotex Corp. · TerminatedFailed Dissolution Specifications: Sirolimus Oral Solution recalled due to lot RZ1598 exceeded the specification limit at the 14-month timepoint.
Sirolimus Tablets 1 mg, 30 Tablets (5 blister cards x 6 unit doses), Rx only, Packaged and Distributed by: American Health Packaging Columbus, OH 43217, NDC 68084-915-25U.S. FDA Class III
12 May 2021 · American Health Packaging · TerminatedFailed Impurities/Degradation Specifications

A recall usually affects certain batches only. Compare the lot number on your pack.

Check your pack of Sirolimus

Type the registration number on the pack, or scan it with your camera.

Or take photos of the pack
3 free checks left today Official sources: U.S. FDA · EMA (EU) · Health Canada · WHO alerts

Questions about Sirolimus

What is Sirolimus used for?

Sirolimus is an mTOR inhibitor immunosuppressant indicated for the prophylaxis of organ rejection in patients aged ≥13 years receiving renal transplants: Patients at low- to moderate-immunologic risk: Use initially with cyclosporine (CsA) and corticosteroids. CsA withdrawal is recommended 2 - 4 months after transplantation ( 1.1 ). Patients at high-immunologic risk: Use in combination with CsA and corticosteroids for (From the official U.S. FDA label.)

How do I take Sirolimus?

Follow your prescription or the leaflet in your pack. The official label says: Sirolimus Oral Solution is to be administered orally once daily, consistently with or without food [see Dosage and Administration ( 2.5 ), Clinical Pharmacology ( 12.3 )]. Renal Transplant Patients: Administer once daily by mouth, consistently with or without food ( 2 ). Administer the initial dose as soon as possible after transplantation and 4 hours after CsA ( 2.1 , 7.1 ). A…

Should I take Sirolimus with food?

Sirolimus Oral Solution is to be administered orally once daily, consistently with or without food [see Dosage and Administration , Clinical Pharmacology ].

Do I need a prescription for Sirolimus?

Usually yes. Sirolimus is a prescription medicine in most countries. Rules differ by country.

What brands contain Sirolimus?

Sirolimus is sold under names such as Rapamune, Fyarro, Hyftor, Felycin. Brand names differ between countries.

What are the side effects of Sirolimus?

The official label lists: The following adverse reactions are discussed in greater detail in other sections of the label. Increased susceptibility to infection, lymphoma, and malignancy [ see Boxed Warning, Warnings and Precautions ( 5.1 ) ] Excess mortality, graft loss, and hepatic artery thrombosis in liver transplant patients [ see Boxed Warning, Warnings and Precautions ( 5.2 ) ] Bronchial anastomot… Tell your doctor about any side effect that bothers you or does not go away.

Can children take Sirolimus?

Renal Transplant The safety and efficacy of sirolimus in pediatric patients < 13 years have not been established. The safety and efficacy of sirolimus oral solution has been established for prophylaxis of organ rejection in renal transplantation in children ≥ 13 years judged to be at low- to moderate-immunologic risk. … Always use the dose for the child's age or weight on the pack or prescription.

Can I take Sirolimus when pregnant or breastfeeding?

8.1 Pregnancy Risk Summary Based on animal studies and the mechanism of action, Sirolimus can cause fetal harm when administered to a pregnant woman [ see Data , Clinical Pharmacology ( 12.1 ) ]. There are limited data on the use of sirolimus during pregnancy; however, these data are insufficient to inform a drug-associated risk of adverse developmental outcomes. … Ask your doctor or midwife first.

What medicines interact with Sirolimus?

Sirolimus is known to be a substrate for both cytochrome P-450 3A4 (CYP3A4) and p-glycoprotein (P-gp). Inducers of CYP3A4 and P-gp may decrease sirolimus concentrations whereas inhibitors of CYP3A4 and P-gp may increase sirolimus concentrations. Avoid concomitant use with strong CYP3A4/P-gp inducers or strong CYP3A4/P-gp inhibitors that decrease or increase sirolimus concentrat… Use the free interaction checker before combining medicines.

What happens if I take too much Sirolimus?

Reports of overdose with sirolimus have been received; however, experience has been limited. In general, the adverse effects of overdose are consistent with those listed in the adverse reactions section [ see Adverse Reactions ( 6 ) ]. General supportive measures should be followed in all cases of o… Get medical help right away.

How can I check that my Sirolimus is genuine?

Scan the registration number on your pack with PillVera (NAFDAC number in Nigeria, NDC in the United States, DIN in Canada), check the expiry date and buy only from licensed pharmacies.

Sources

This page shows what official sources say, in plain words. It is not medical advice: your prescription and your doctor or pharmacist come first. Brand names, strengths and rules differ between countries.