Take twice daily: once in the late afternoon (around 4-5 PM) and once 30-60 minutes before bedtime, on an empty or nearly empty stomach.

Typically taken for 2-4 weeks as an initial course, then reassessed by a practitioner. Chronic insomnia may require 4-8 weeks of use.

Avoid stimulating foods and beverages in the evening, including coffee, strong tea, alcohol, chocolate, and spicy dishes, as these generate Heat and agitate the Shen. Rich, greasy, or heavy meals eaten late at night should be minimized, as they burden the Stomach and can worsen insomnia (the classical principle that "when the Stomach is in disharmony, sleep is disturbed"). Favor easily digestible, mildly nourishing foods such as congee, cooked vegetables, lotus seed soup, longan fruit, and millet porridge. Foods that naturally support sleep in TCM tradition include lily bulb (bai he), lotus seed, red dates, and mulberries. Avoid cold and raw foods if digestion is weak.

Sedatives, hypnotics, and benzodiazepines: Suan Zao Ren (Ziziphus seed) has demonstrated sedative and GABAergic activity in pharmacological studies. Concurrent use with pharmaceutical sedatives such as benzodiazepines (e.g. lorazepam, diazepam), zolpidem, or other sleep medications may produce additive sedative effects. Patients taking prescription sleep aids should consult their prescribing physician before combining them with this formula.

Antidepressants (SSRIs/SNRIs): Suan Zao Ren's influence on serotonin receptors raises a theoretical concern for interaction with serotonergic medications. While clinically significant serotonin syndrome from this combination has not been widely documented, caution is warranted and patients should inform their doctor if taking both.

Anticoagulant and antiplatelet drugs: No major interactions are expected from this particular formula composition, as it does not contain strongly Blood-moving herbs. However, patients on warfarin or other anticoagulants should still inform their healthcare provider.