Q. I've heard that weight loss herbal medicine can cause insomnia or heart palpitations. Are there any side effects?
These reactions may occur depending on your individual constitution and metabolic state, but they can be alleviated by adjusting the types and dosages of herbal ingredients during the prescription process.
📝 Detailed Answer
Actually, back when I was studying, there were times when I'd push myself too hard to focus, leading to heart palpitations and sleepless nights. The palpitations or insomnia you may experience while taking weight loss herbal medicine are generally reactions that occur as your basal metabolic rate increases.
In Traditional Korean Medicine (TKM), this is viewed as Sim-hwa (心火), a state where heat accumulates in the heart. When herbs that strongly stimulate energy consumption are used, the body becomes activated, but sensitive individuals may perceive this as 'anxiety' or 'palpitations.' In particular, those with Gi-heo (氣虛), or a deficiency of Qi (vital energy), may find strong medications overwhelming.
💡 Prescription Adjustment Strategy
Rather than simply enduring these symptoms, we balance the formula by lowering the concentration of stimulating herbs or adding An-shin (安神) herbs to calm the mind and spirit.
- Initial Reaction: This may be a temporary adjustment period as your metabolism activates.
- Constitutional Mismatch: If your heart rate remains too high or interferes with daily life, a dosage adjustment is necessary.
- Psychological Factors: Reactions vary based on caffeine sensitivity and stress levels.
Therefore, rather than starting with potent medication, it is crucial to first understand your constitutional state through a detailed consultation. Please let us know if you experience any discomfort; this feedback is a vital part of the process of refining your prescription for a precise fit.
Expert Verified
Dr. Yeonseung Choe
Chief Director
Last reviewed 2026.04.20