Ajinomoto Co., Ltd.

Nobutaka Ninomiya

Akira Yabuki

Chisato Makino

Takahiko Ando

Masanao Ozaki

Masato Kaida

Nobuo Kato

Hidetoshi Sakai

Shigeru Shioya

Haruo Orita

Mitsuyasu Ida

Erika Motomura

Kunikazu Suzuki

Takahiko Andou

The present invention aims to provide an amino acid-containing granule preparation improved in the ease of taking medication than conventional products, which disintegrates rapidly. The amino acid-containing granule preparation of the present invention containing granules having a maximum particle size of substantially not more than 1000 &#x3bc;m and a bulk density of not less than 0.57 g/mL markedly improves ease of taking medication without impairing disintegration property, as compared to conventional amino acid-containing granule preparations.

Amino-acid-containing medicinal granular preparation highly easy to take

The present invention provides a small-sized preparation that is easy to take, containing 26% or more of nateglinide and 28% or more of at least one disintegrant selected from the group consisting of carmellose or salts thereof, sodium carboxymethyl starch, croscarmellose sodium, crospovidone, partly pregelatinized starch and low-substituted hydroxypropyl cellulose, based on the total mass of the preparation. The preparation of the present invention has high contents of nateglinide, which can be absorbed immediately to exhibit a hypoglycemic action.

Nateglinide-containing preparation

The present invention discloses, as a immediate-release preparation useful as an antidiabetic, a nateglinide-containing preparation comprising nateglinide as an active ingredient wherein the nateglinide is amorphous.

There is provided a single preparation which directly decreases both of the post prandial blood glucose level and the fasting blood glucose level close to normal levels, by release-sustaining a drug capable of decreasing the post prandial blood glucose level of diabetic patients close to the normal level, or mixing a controlled release drug capable of decreasing the post prandial blood glucose level close to the normal level with an immediate release drug. It is particularly preferable that the drug capable of decreasing the post prandial blood glucose level close to the normal level is nateglinide.

Antidiabetic preparation for oral administration

A tablet composition containing N-(trans-4-isopropylcyclohexanecarbonyl)-D-phenylalanine and a disintegrant, selected from a low substituted hydroxypropylcellulose, sodium carboxymethyl cellulose, calcium carboxymethyl cellulose and sodium croscaramellose sodium, is disclosed. This tablet composition is rapidly disintegrated in the stomach after the administration and absorbed without being influenced by meals to inhibit the rise of the blood sugar levels of diabetics after meals.

Tablet composition

There is provided a single preparation which directly decreases both of the post prandial blood glucose level and the fasting blood glucose level close to normal levels, by release-sustaining a drug capable of decreasing the post prandial blood glucose level of diabetic patients close to the normal level, or mixing a controlled release drug capable of decreasing the post prandial blood glucose level close to the normal level with an immediate release drug. It is particularly preferable that the drug capable of decreasing the post prandial blood glucose level close to the normal level is nateglinide, repaglinide, or mitiglinide (KAD-1229).

A tablet composition containing N-(trans-4-isopropylcyclohexanecarbonyl)-D-phenylalanine and low substituted hydroxypropylcellulose is disclosed. This tablet composition is rapidly disintegrated in the stomach after the administration and absorbed without being influenced by meals to inhibit the rise of the blood sugar levels of diabetics after meals.

Tablet composition of N-(trans-4-isopropylcyclohexanecarbonyl)-D-phenylalanine

A tablet composition containing N-(trans-4-isopropylcydohexanecarbonyl)-D-phenylalanine and low substituted hydroxypropylcellulose is disclosed. This tablet composition is rapidly disintegrated in the stomach after the administration and absorbed without being influenced by meals to inhibit the rise of the blood sugar levels of diabetics after meals.

Growing community of inventors

Kawasaki, Japan

Nobutaka Ninomiya