Scored tablet

Abstract

The invention relates to a scored tablet (1) comprising a convex upper face (2), an at least partially concave lower face (3) and a side wall (4) extending between the upper and lower faces; two score grooves (5, 6) are formed in the concave lower face, said grooves being perpendicular to one another and continuous with score slits (8, 9, 10, 11) located in the side wall.

Claims

1. A scored tablet comprising a convex upper face, an at least partially concave lower face and a side wall extending between the upper and lower faces and score grooves formed in the concave lower face, wherein said score grooves are perpendicular to one another and continuous with score slits located in the side wall, wherein one of the score grooves is continuous, thus extending as a single cut between two score slits of the continuous score groove, and the other score grooves are discontinuous and terminate at said continuous groove, and wherein each score slit has a V-shaped cross section, each score slit of the continuous score groove having a deeper extension within the scored tablet than the extension of the score slit of the discontinuous score groove so that the length of the continuous score groove is smaller than the length of the discontinuous score grooves to promote the first breaking of the tablet along the continuous score groove.

2. The scored tablet as claimed in claim 1, said tablet having a cylindrical circular shape.

3. The scored tablet as claimed in claim 1, wherein the score grooves of the lower face have a V-shaped cross section.

4. The scored tablet as claimed in claim 3, wherein the V-shaped cross section has an opening angle α of between 40° and 100°.

5. The scored tablet as claimed in claim 3, wherein the V-shaped cross section has an opening angle α equal to 80°+/−5°.

6. The scored tablet as claimed in claim 1, wherein the score grooves of the lower face have a depth of between ⅕ and 3/10 of the thickness of the tablet.

7. The scored tablet as claimed in claim 6, wherein the score grooves divide the tablet into four substantially identical triangles, the lower face of each of the triangles having an edge extending from the outer rim to a score groove, upstream of the intersection of said score grooves.

8. The scored tablet as claimed in claim 6, wherein an outer rim of the lower face is beveled.

9. The scored tablet as claimed in claim 6, wherein the score slits of the side wall have a V-shaped cross section.

10. The scored tablet as claimed in claim 9, wherein the V-shaped cross section of the score slits of the side wall has an opening angle β of between 70° and 120°.

11. The scored tablet as claimed in claim 9, wherein the V-shaped cross section of the score slits of the side wall has an opening angle β equal to 90°+/−5°.

12. The scored tablet as claimed in claim 6, wherein said tablet has a largest diameter of between 10 and 22 mm.

13. The scored tablet as claimed in claim 6, said tablet having a cylindrical circular shape, wherein the score grooves divide the tablet into four substantially identical triangles, the lower face of each of the triangles having an edge extending from the outer rim to a score groove, upstream of the intersection of said score grooves.

14. The scored tablet as claimed in claim 7, wherein each edge extends as far as the discontinuous score groove, upstream of the intersection of said score grooves.

Description

(1) The invention will be understood more clearly on reading the description which follows and on examining the figures which accompany it. They are presented by way of information and are in no way limiting with regard to the invention. The figures represent:

(2) FIG. 1: a schematic representation view from above (A) and from below (B) of a scored tablet according to one implementation example of the invention;

(3) FIG. 2: two schematic side-view representations (A and B) of a scored tablet according to one implementation example of the invention.

(4) An objective of the invention is to provide a scored tablet that can be cleaved, if required, into two or four equal parts, in order to be able to easily adjust the amount of active substance to be administered as a function of the dosage regime. One and the same type of tablet can thus be administered to various users, and more particularly various animals, having in particular a broad weight range, since it is possible to administer all, half or a quarter of the dose of active substances that is initially contained in the tablet. The scored tablet according to the invention has score grooves and slits making it possible to guarantee a homogeneous cleavage, by simple pressure, in order to obtain tablet halves or quarters comprising a controlled amount of active substance.

(5) In the example represented in FIGS. 1 and 2, the tablet has an overall circular shape. Of course, other shapes can be envisioned, and in particular an oval, rectangular or square shape.

(6) The tablet 1 comprises an upper face 2, a lower face 3 and a side face 4 extending perpendicularly between the two upper 2 and lower 3 faces, that are substantially circular. The upper face 2 is convex, as can in particular be seen in FIGS. 2A and 2B, while the lower face 3 is concave overall.

(7) As can be seen in FIG. 1A, the tablet 1 according to the invention has, on its lower face 3, two score grooves 5, 6, debossed in the thickness of said lower face 3. The term “thickness” is intended to mean the dimension extending perpendicularly to the plane of observation of the lower face 3. The score grooves 5, 6 are perpendicular to one another. A first score groove 5 extends continuously in a diameter of the lower face 3. The second score groove 6 is, for its part, discontinuous. More specifically, the second score groove 6 stops at the intersection 7 between the two score grooves, located at the center of the lower face 3 of the tablet 1.

(8) The score grooves 5, 6 have a V-shaped cross section, in such a way that the width of said score grooves decreases from the external surface of the lower face 3 to the interior of the tablet 1. The term “width” is intended to mean the dimension of the grooves extending perpendicularly to the largest dimension and in the same plane. Of course, it is possible to make score grooves which have a square or rectangular cross section, for example, in such a way that the width of said grooves is constant. The opening angle α of the score grooves 5, 6 is 80°, +/−5° (FIGS. 2A and 2B).

(9) In the example represented in FIGS. 1 and 2, the score grooves 5, 6 have identical depths, but it is possible to envision different depths between the two grooves. In this case, the continuous score groove advantageously has the greatest depth. It is also possible to envision a variable depth along a score groove, in such a way for example as to make a greater groove depth at the center of the tablet.

(10) The score grooves 5, 6 made on the lower face 3 of the tablet 1 extend on the side face 4, in such a way as to form thereon score slits 8, 9, 10, 11. The score slits 8, 9, 10, 11 have a V-shaped cross section, an opening angle β of which is approximately 90°, +/−5° (FIG. 1B).

(11) The two score grooves 5, 6 have different lengths 1 and 1′. More specifically, the continuous score groove 5 has a length 1 smaller than the length 1′ of the discontinuous score groove 6. In order to obtain a such a difference in length, although the tablet has a circular general shape, the score slits 8, 9 extending on the side face 4 of the tablet 1 and in the extension of one of the score grooves 5 are deeper than the score slits 10, 11 extending into the extension of the other score groove 6.

(12) As can be seen in FIG. 1A, the score grooves 5, 6 and the score slits 8, 9, 10, 11 make it possible to divide the tablet 1 into four triangles 12, 13, 14, 15 that are identical in terms of dimensions.

(13) In the implementation example described here, the lower face 3 has various slopes. More specifically, each triangle 12, 13, 14, 15 comprises an edge 16, 17, 18, 19 extending from the external edge 20 of the lower face 3 to the discontinuous score groove 6. Each triangle 12, 13, 14, 15 thus has descending slopes from the corresponding edge 16, 17, 18, 19 to the score grooves. Advantageously, the edges 16, 17, 18, 19 cleave the discontinuous score groove 6 upstream of the intersection 7 with the continuous score groove 5. The lower face 3 is thus partially concave. More specifically, the lower face 3 has a concavity zone 21 extending substantially along the continuous score groove 5, such that the thickness of the tablet 1 is smallest at the intersection 7 between the score grooves 5, 6. The concavity zone 21 is more specifically delimited by the edges 16, 17, 18, 19, from said edges up to the center of the tablet 1.

(14) The angle of curvature a of the concavity zone is 165°, +/−5° (FIG. 2B).

(15) Moreover, the outer rim 20 of the lower face 3 of the tablet 1 is beveled.

(16) All of the arrangements presented above promote the cleavage of the tablet 1, successively, into tablet halves then quarters. For this, it is sufficient to have the tablet 1 on a preferentially planar surface, convex upper face 2 facing upward. A pressure exerted by a finger on the convex upper face 2 of the tablet 1 makes it possible to divide the tablet into two identical parts, the cleavage taking place along the continuous score groove 5. If it proves to be necessary, it is then possible to exert a pressure with the finger on the upper face of a half-tablet, in order to cleave said half-tablet in two, along the discontinuous score groove 6. Two identical tablet quarters are thus obtained.