Pharmaceutical compositions comprising entacapone, levodopa, and carbidopa
The present invention relates to stable pharmaceutical compositions comprising entacapone, levodopa and carbidopa, or pharmaceutically acceptable salts or hydrates thereof. The invention also relates to processes for the preparation of such compositions.
1. A wet granulated single oral dose pharmaceutical composition consisting of entacapone, levodopa and carbidopa, or pharmaceutically acceptable salts or hydrates thereof, microcrystalline cellulose and pharmaceutically acceptable excipients, wherein a substantial portion of entacapone or a pharmaceutically acceptable salt or hydrate thereof along with microcrystalline cellulose and one or more pharmaceutically acceptable excipients are separated from a mixture of levodopa and carbidopa or pharmaceutically acceptable salts or hydrates thereof along with one or more pharmaceutically acceptable excipients.
2. The pharmaceutical composition of claim 1 , wherein one or more pharmaceutically acceptable excipients are selected from the group consisting of binders, fillers, lubricants, disintegrants, and glidants.
3. The pharmaceutical composition of claim 1 , wherein the composition is in the form of a monolayered tablet, a bilayered tablet, a caplet, a minitablet, a capsule, a tablet in a capsule, granules in a capsule, pellets, pellets in a capsule, powder or suspension.
4. A wet granulated single oral dose capsule, pharmaceutical composition consisting of granules of entacapone or a pharmaceutically acceptable salt or hydrate thereof, microcrystalline cellulose and pharmaceutically acceptable excipients and a tablet consisting of a mixture of levodopa and carbidopa or pharmaceutically acceptable salts or hydrates thereof with other pharmaceutically acceptable excipients, wherein a substantial portion of entacapone or a pharmaceutically acceptable salt or hydrate thereof along with microcrystalline cellulose and pharmaceutically acceptable excipients are separated from the tablet consisting of a mixture of levodopa and carbidopa or pharmaceutically acceptable salts or hydrates thereof, with pharmaceutically acceptable excipients.
5. The pharmaceutical composition of claim 4 , wherein the pharmaceutically acceptable excipients are selected from the group consisting of: binders, fillers, lubricants, disintegrants, and glidants.
6. A wet granulated single oral dose capsule pharmaceutical composition consisting of granules of entacapone or a pharmaceutically acceptable salt or hydrate thereof, microcrystalline cellulose and pharmaceutically acceptable excipients and granules consisting of a mixture of levodopa and carbidopa or pharmaceutically acceptable salts or hydrates thereof in combination with pharmaceutically acceptable excipients, wherein a substantial portion of the granules of entacapone or a pharmaceutically acceptable salt or hydrate thereof, microcrystalline cellulose and pharmaceutically acceptable excipients are separated from the granules comprising a mixture of levodopa and carbidopa or pharmaceutically acceptable salts or hydrates and pharmaceutically acceptable excipients.
7. The pharmaceutical composition of claim 6 , wherein the pharmaceutically acceptable excipients are selected from the group consisting of: binders, fillers, lubricants, disintegrants, and glidants.
8. The single oral dose pharmaceutical composition of claim 1 , obtained by separate wet granulation of entacapone and wet granulation of a mixture of levodopa and carbidopa.
9. A wet granulated monolayer single oral dose pharmaceutical composition comprising entacapone, levodopa and carbidopa, or pharmaceutically acceptable salts or hydrates thereof, and microcrystalline cellulose wherein a substantial portion of entacapone or a pharmaceutically acceptable salt or hydrate thereof and microcrystalline cellulose are separated from a mixture of levodopa and carbidopa or pharmaceutically acceptable salts or hydrates thereof, wherein pharmaceutical composition is prepared by wet granulation.
10. A wet granulated pharmaceutical composition comprising:
No.
Ingredients
% Composition
Entacapone Granules
1.
Entacapone
28.78
2.
Microcrystalline cellulose
5-20
3.
Mannitol
5-25
4.
Hydroxypropyl methyl
1-15
cellulose
5.
Purified water
q.s.
6.
Croscarmellose sodium
2-5
7.
Colloidal silicon dioxide
0.5-2
8.
Magnesium stearate
0.5-1.5
Levodopa, carbidopa Granules
9.
Levodopa
21.58
10.
Carbidopa
5.40
11.
Starch
7-30
12.
Croscarmellose sodium
2-5
13.
Povidone
0.5-5
14.
Purified water
q.s.
15.
Corcarmellose sodium
2-5
16.
Colloidal silicon dioxide
0.5-2
17.
Magnesium stearate
0.5-1.5.
11. A wet granulated pharmaceutical composition comprising:
%
No.
Ingredients
Composition
Entacapone granules
1.
Entacapone
28.78
2.
Microcrystalline cellulose
5-20
3.
Mannitol
5-25
4.
Hydroxypropyl methyl
1-15
cellulose
5.
Purified water
q.s
6.
Croscarmellose sodium
2-5
7.
Colloidal silicon dioxide
0.5-2
8.
Magnesium stearate
0.5-1.5
Levodopa, carbidopa granules
9.
Levodopa
21.58
10.
Carbidopa
5.40
11.
Starch
7-30
12.
Croscarmellose sodium
2-5
13.
Povidone
0.5-5
14.
Purified water
q.s.
15.
Croscarmellose sodium
2-5
16.
Colloidal silicon dioxide
0.5-2
17.
Magnesium stearate
0.5-1.5
Coating
18.
Opadry red
2-3.
12. A wet granulated pharmaceutical composition comprising:
No
Ingredients
% w/w
Entacapone granules
1.
Entacapone
28.57
2.
Microcrystalline cellulose
5-15
3.
Mannitol
5-25
4.
Corn starch
7-30
5.
Croscarmellose sodium
2-5
6.
Polyvinylpyrrolidone
1-5
7.
Purified water
q.s.
Levodopa, carbidopa granules
8.
Levodopa
21.43
9.
Carbidopa
5.34
10.
Corn starch
5-40
11.
Polyvinylpyrrolidone
1-7
12.
Purified water
q.s.
13.
Talc
0.5-3
14.
Magnesium stearate
0.5-1.5
15.
Opadry
2-3.
13. A wet granulated pharmaceutical composition comprising:
%
No.
Ingredients
Composition
Entacapone granules
1.
Entacapone
28.57
2.
Microcrystalline cellulose
5-20
3.
Mannitol
5-25
4.
Povidone
1-5
5
Purified water
q.s.
Levodopa, carbidopa granules
6.
Levodopa
21.43
7.
Carbidopa
5.36
8.
Starch
5-30
9.
Croscarmellose sodium
1.5-5
10.
Povidone
0.5-5
11.
Purified water
q.s.
12.
Croscarmellose sodium
2-5
13.
Colloidal silicon dioxide
0.5-2
14.
Hydrogenated vegetable oil
0.5-2
15.
Magnesium stearate
0.5-1.5
16.
Opadry red
2-4.