Bacopa herbs may cause nausea, fatigue, dry mouth, stomach cramps and increased bowel movements, according to WebMD. The extract is possibly safe when taken appropriately, but in some cases, it may increase secretions in areas such as the lungs, stomach, intestines and the urinary tract.
In some cases, Bacopa herbs increase intestinal and stomach secretions that worsen ulcers, as WebMD explains. People who have intestinal blockage problems may experience congestion in the gastrointestinal tract after taking Bacopa herbs. Extracts from the plant may also increase secretions in the urinary tract, eventually leading to the obstruction of the urinary tract. Bacopa herbs may cause digestive problems and symptoms that resemble flu, as the National Center for Biotechnology Information reports. People taking Bacopa extract may experience thirst and muscle fatigue.
People with a slow heart beat may experience reduced heart beat rates when they take Bacopa extracts, notes WebMD. Taking the herbs also increases fluid secretions in the lungs, a process that may worsen the condition of the lungs in people with asthma or emphysema. Bacopa extracts increase the secretion of thyroid hormone in some individuals, posing a risk to people who have a thyroid condition. Bacopa herbs are not safe for pregnant and breastfeeding mothers.