Red date and raspberry effervescent tablet and preparation method thereof

The invention discloses a red date and raspberry effervescent tablet. The effervescent tablet is prepared from the following raw materials in parts by weight: 120 to 150 parts of raspberry, 5 to 6 parts of red date, 1 to 2 parts of pseudo-ginseng flower, 10 to 15 parts of red glutinous rice, 2 to 3 parts of sago, 2 to 3 parts of sodium bicarbonate, 1 to 2 parts of privet leaf, 3 to 4 parts of mulberry, 2 to 3 parts of viola diffusa ging, 1 to 2 parts of cassia bark, 1 to 2 parts of balanophora involucrata, 4 to 5 parts of elm fruit, 2 to 3 parts of morinda officinalis, 2 to 3 parts of cistanche, and a proper amount of acid powder. The preparation method comprises the following steps: freeze-drying fresh raspberries, which have the functions of tonifying the liver, boosting the kidney, controlling nocturnal emission, reducing urination, and improving the eyesight, then subjecting the dried raspberries to ultramicro grinding, mixing the raspberry powder with sodium bicarbonate, pressing the mixed powder into tablets, mixing lemon, corn poppy, and peanut powder so as to obtain acid powder, and finally covering the tablets with the acid powder. When a finished effervescent tablet is soaked in hot water, the acid powder in the mid-outer layer of the tablet will be rapidly dissolved, thus the water will be in a weak acidic state, so the dissolution of the drug in the inner layer of the tablet is accelerated. Moreover, red date, pseudo-ginseng flower, and red glutinous rice are added, so the effervescent tablet has the advantages of rich nutrients and prominent healthcare functions.