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Objective: To address the knowledge gap surrounding herbal medicine and supplement usage patterns and supplement-prescription medication interactions among patients seeking treatment for infertility. Design: Cross-sectional survey study. Setting: Academic infertility practice. Patient(s): Ninety-five reproductive-aged patients. Intervention(s): Not applicable. Main Outcome Measure(s): Use of herbal medications and supplements, baseline demographics, history of infertility treatments, and potential supplement-medication interactions. Result(s): We surveyed 95 participants with a median age of 35 years. Overall, 68.4% of patients reported ever having used supplements or herbal medicines in the past. Current use of herbal supplements and vitamins was reported by 53.7% and 93.7% of participants, respectively, with a median of 2 (range 19) supplements used per person. There were no significant associations between patient demographics, comorbidities, or infertility treatments with increased rates of supplement use. The most commonly used herbal supplements were: green tea (n = 14), chamomile (n = 12), peppermint (n = 9), turmeric (n = 8), elderberry (n = 7), ginger (n = 7), maca (6) with the most common modalities being pills/capsules (23.8%) and tea (42.3%). The most common reasons for use were: general health and wellness (24.5%), immune support (16.2%), stress (14.0%), and fertility (15.0%). Patients used maca (n = 5), chasteberry (n = 3), goji berry (n = 2), ginger (n = 2), yam-based progesterone (n = 2), and combination product (n = 2) for fertility purposes. A total of 7.9% of patients learned about these products from their general health care provider, and 33.3% of supplements were disclosed by patients to their provider. We identified 41 moderate-risk supplement-drug interactions, with 12 of these interactions attributed to infertility therapies. Based on the interaction checker, the most commonly proposed mechanisms of interaction were CYP3A4 and CYP2C19 inhibition. In terms of safety in pregnancy, cannabidiol and chasteberry were suggested to be “possibly unsafe in pregnancy,” and red raspberry leaf “likely unsafe in pregnancy” without direct medical supervision. Conclusion(s): We found over two thirds of women seeking treatment for infertility reported past and over half reported current herbal medicine and supplement use. Notably, the Natural Medicines Interaction Checker suggested high rates of moderate-risk supplement-drug interactions and possible harmful effects in early pregnancy. Our results call for further investigation of clinically relevant supplement interactions with infertility therapies. |
