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Relugolix Side Effects

The most commonly reported side effects of relugolix include hot flush, fatigue, and therapy interrupted, based on 23,465 FDA adverse event reports from 2005 to 2025.

Relugolix side effects

Percentages show how often each reaction appears relative to total reports for relugolix.

1
Hot Flush30.5%7,152
2
Fatigue23.4%5,486
3
Therapy Interrupted16.0%3,747
4
Incorrect Dose Administered8.3%1,955
5
Asthenia7.8%1,827
6
Arthralgia6.3%1,474
7
Diarrhoea6.2%1,453
8
Product Dose Omission Issue5.4%1,260
9
Dizziness5.3%1,241
10
Constipation4.1%965
11
Death3.8%894
12
Weight Increased3.7%860
13
Pain3.6%838
14
Insomnia3.5%814
15
Myalgia3.2%757

These are voluntary reports and do not establish that relugolix caused these reactions.

Report severity

23.4%Serious5,481 reports
8.5%Hospitalizations2,002 reports
4.5%Fatal1,049 reports

Seriousness is determined by the reporter, not by OpenClaim.

Relugolix drug interactions

Other drugs that appear in adverse event reports alongside relugolix. Drugs flagged as a suspected cause appear in the first column. Drugs taken at the same time but not suspected appear in the second.

Also suspected

1
Estradiol6.1%1,433
2
Norethindrone6.1%1,430
3
Enzalutamide2.3%537
4
Darolutamide1.7%402
5
Abiraterone-acetate1.4%320
6
Apalutamide1.3%300
7
Tamsulosin-hydrochloride0.6%132
8
Prednisone0.5%122
9
Leuprolide0.5%114
10
Vibegron0.4%92
11
Lisinopril0.3%66
12
Docetaxel0.3%62
13
Atorvastatin-calcium0.2%41
14
Propranolol-hydrochloride0.2%39
15
Olaparib0.1%35

Taken alongside

1
Atorvastatin-calcium12.1%2,833
2
Tamsulosin-hydrochloride11.3%2,663
3
Ergocalciferol11.3%2,662
4
Aspirin11.3%2,644
5
Amlodipine8.6%2,018
6
Metoprolol7.6%1,775
7
Lisinopril6.4%1,503
8
Acetaminophen6.3%1,484
9
Losartan-potassium6.0%1,414
10
Rosuvastatin6.0%1,407
11
Metformin5.9%1,382
12
Enzalutamide5.5%1,287
13
Omeprazole4.5%1,064
14
Prednisone4.5%1,052
15
Cyanocobalamin4.3%1,000

Co-occurrence in adverse event reports does not establish a drug interaction. Patients often take multiple medications, and these lists reflect prescribing patterns rather than causal relationships. Consult a healthcare provider about potential drug interactions.

Who reports relugolix side effects

6.5% of relugolix adverse event reports involve female patients and 48.1% involve male patients. The largest age group is elderly at 75%. These figures reflect who reports side effects, not underlying risk.

Sex

Female6.5%
Male48.1%
Unknown45.4%

Age group

< 2<0.1%
2–110.3%
12–170.3%
18–6423.9%
65+75.4%

What is relugolix used for

Conditions and purposes for which patients were taking relugolix when the adverse event was reported.

Adrenal DisorderAbdominal DiscomfortAbdominal PainAbnormal Uterine BleedingAccidental Exposure To ProductAcute Myeloid LeukaemiaAdenomyosisAnaemiaAndrogen DeficiencyAndrogen TherapyAnovulatory CycleAntiandrogen TherapyBasedow^s DiseaseBenign Connective Tissue NeoplasmBenign Neoplasm

Showing 15 of 157 indications

Relugolix brand names and reporting trend

Relugolix is sold under the brand name Myfembree.

Brand names

Myfembree992

Quarterly reports (20052025)

2005201520202025

An upward trend reflects increased FAERS reporting overall, not necessarily increased risk.

Taking relugolix with another medication?

Ask OpenClaim about your specific drug combination. Get a sourced report using FDA data, drug labels, and medical literature.