Hemp CBD is generally safe to use. When taken by mouth and appropriately in adults. Cannabidiol doses of up to 300 mg daily have been used safely for up to 6 months. Higher doses of 1200-1500 mg daily have been used safely for up to 4 weeks. Cannabidiol sprays used under the tongue have been used in doses of 2.5 mg for up to 2 weeks.
Some reported side effects of CBD include dry mouth, low blood pressure, light headedness, and drowsiness.
Considering lowering your dosage or stopping all together if you began experiencing these side effects with CBD use. Contact your primary care provider to get evaluated.