Suggested usages of Lemon Balm can be as a tea, as well as a tincture. While the tea can be drunk several times a day, the tincture should only be used in 2-3 ml quantities three times per day, although you should always consult with a trained herbalist to get proper dosage amounts for you. The recommended amount of Lemon Balm for insomnia is about 160mg to 200mg of concentrated extract taken at least one hour before going to sleep.
If you suffer from suffer from gastritis or ulcers you should avoid using this herb. This applies if you also have an allergy to willow bark, aspirin or other Salicylates.