Turmeric compound tested for cancer drug joint pain

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Women with histologically confirmed primary invasive adenocarcinoma of the breast, stages I-IIIA * Estrogen-receptor positive (ER+) and/or progesterone-receptor positive (PR+) breast cancer * Completion of definitive surgery with mastectomy or breast conserving therapy * Postmenopausal (no menses \>= 12 months) or on ovarian suppression in order to take AIs * Currently taking an Food and Drug Administration (FDA) approved third-generation aromatase inhibitor (e.g., anastrozole \[Arimidex\], letrozole \[Femara\], or exemestane \[Aromasin\]) for \>= 90 days prior to registration with plans to continue for \>= 90 days after registration * Clinical symptoms of joint pain for at least 3 months prior to study entry that started or increased with AI therapy with Brief Pain Inventory (BPI) Worst Pain score \>= 4 (verbal response to BPI question 3 regarding the worst pain in the past 24 hours as 0 "no pain" to 10 "pain as bad as you can imagine") Exclusion Criteria: * Prior malignancy =\< 5 years except adequately treated basal cell or squamous cell skin cancer, in situ cervical cancer, ductal carcinoma in situ of the breast or adequately treated stage I or II cancer from which the patient is currently in complete remission * History of a bleeding tendency or current use of coumadin or other anticoagulants * Current or previous history of anemia * Current autoimmune, liver, hematopoietic, cardiac, or renal disease * Current viral, bacterial, atypical or fungal infections of any organ system * Concurrent use of immunosuppressant medications * Concurrent use of medications known to inhibit or induce hepatic enzyme CYP 3A4 (e.g. ketoconazole, macrolide antibiotics, barbiturates) * Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situation that would limit compliance with study requirements * Bone fracture or surgery of the affected joints, within 180 days of study entry * Medical therapy, alternative therapy, or physical therapy for joint pain/stiffness =\< 30 days of study entry * Intra-articular steroids =\< 90 days of study entry or oral/intramuscular corticosteroids \< 30 days of entry * Use of analgesics (e.g., opiates, tramadol with the exception of nonsteroidal anti-inflammatory drugs \[NSAIDs\] and acetaminophen) within 14 days prior to registration, or at any time during the 3-month study period * Chronic use of any herbal or dietary supplement containing curcumin or curcuminoids =\< 3 months of study entry or any other supplements that might interact with NEC (e.g. St. John's Wort) * Known sensitivity or allergy to turmeric spices or curry