The white blood cells can usually rise after about a week of taking the tablets, but the exact speed of effect varies from person to person and is related to the degree of the patient’s condition. 1. Diyu Shenbai Tablet is a kind of drug to raise white blood cells, used for the treatment of leukopenia, belongs to the pure Chinese medicine preparation. 2. For mild patients, after taking the medicine, it takes about one week for white blood cells to form from naive white blood cells to mature white blood cells, and for mature white blood cells to be released again. Therefore, under normal circumstances, the number of leukocytes in the peripheral blood begins to rise after taking Diyu Lianbai Tablets for about a week. 3. For severe patients, it may take a longer period of time after taking the medicine for the effect to show. If the effect is still not obvious after long-term use, it is recommended to consult a physician in time to decide the follow-up treatment plan.