The present invention relates to a dry suspension containing
lansoprazole and
sodium bicarbonate and a preparation method thereof. By strictly controlling the dosage of
sodium bicarbonate and the ratio of each component, the prepared dry suspension has good
acid resistance and stability. The
active ingredient sodium bicarbonate in the product can quickly neutralize
gastric acid, thereby relieving symptoms such as excessive
gastric acid and
stomach pain. After neutralizing
gastric acid, it can reduce the degradation of the
drug by gastric acid, improve the stability of
lansoprazole in the human gastric environment, ensure the rapid
dissolution and high
bioavailability of this product in the
stomach, so as to achieve the purpose of
rapid onset. At the same time, during the
research process of the present invention, it was unexpectedly found that through a specific mixing sequence, not only can the stability and mixing uniformity of the product be further improved, but also a better
taste masking effect can be achieved. In addition, being prepared as a dry suspension is particularly suitable for the elderly, children and patients with difficulty in
swallowing, and has clinical compliance that cannot be compared with tablets or capsules of the same specification. The preparation method of this product is simple, highly operable, and has great
clinical significance.