Precautions and Contraindications
Guggul may lower thyroid-stimulating hormone levels by increasing the production of triiodothyronine,[1] so patients with thyroid disorder should either avoid guggul or be monitored closely if they choose to use it. Pregnant patients should also avoid guggul, since guggul gum resin appears to stimulate menstrual flow. Information about possible effects on lactation is lacking.
American Journal of Health-System Pharmacy. 2005;62(10):1012-1014. © 2005 American Society of Health-System Pharmacists
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