Research

Hormonal

Gamma-linolenic acid (GLA) improves the efficacy and reduces the side effects of tamoxifen in breast cancer patients, including improving transcutaneous absorption.

If you are taking tamoxifen for breast cancer, ask your oncologist about adding GLA. Research suggests it may help the drug work better, reduce side effects, and potentially speed up how quickly you respond to therapy. It may also help deliver the drug more effectively through the skin if using topical forms.

ModerateSupportsMEDIUM confidence
Clinical trial in breast cancer patients has confirmed that when given in combination with tamoxifen, GLA improved the efficacy of tamoxifen, reduced the side effects and time to response to therapy [20].
Rakesh Kapoor et al. · Current Pharmaceutical Biotechnology · 2006

Why this rating

Based on a review of clinical trials and in-vitro studies, but specific large-scale trial data is not detailed in this text.

Source

Gamma Linolenic Acid: An Antiinflammatory Omega-6 Fatty Acid

Rakesh Kapoor et al. · Current Pharmaceutical Biotechnology · 2006

DOI 10.2174/138920106779116874

narrative_reviewCited 354×
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DOI resolved against Crossref · corpus check 2026-06-10

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