There is limited research on the side effects of skullcap. Side effects include drowsiness, difficulty concentrating, and upset stomach. Avoid operating heavy machinery, driving, or taking part in activities that require mental alertness while taking skullcap.
You should not take skullcap with alcohol or with medications that cause drowsiness, as it may increase the risk of sedation and difficulty concentrating.
You should stop using skullcap 2 weeks before an elective surgery. Contact your doctor if sleeplessness lasts longer than 4 weeks.
Avoid using skullcap if you are pregnant or breast-feeding.
Before taking any new medications, including natural health products, speak to your physician, pharmacist, or other health care provider. Tell your health care provider about any natural health products you may be taking.