Non-gelatin enteric soft capsules
View Patent ↗Described herein are pharmaceutical enteric soft capsules that do not contain gelatin as a film-forming polymer. In particular, compositions and methods for manufacturing enteric soft capsules comprising carrageenans as film forming polymers are disclosed.
1. An oral enteric dosage form comprising soft capsule shell and a fill,
the shell comprising:
2.5% iota carrageenan by mass;
0.6% kappa carrageenan by mass;
9.2% hydroxypropyl starch phosphate by mass;
2.4% polyvinyl alcohol-poly ethylene glycol graft copolymer by mass;
6.3% glycerin by mass;
2.9% dehydrated liquid sorbitol by mass;
1.7% ammonium hydroxide (30% w/v) by mass;
9.7% methacrylic acid copolymer by mass;
1.2% triethyl citrate by mass; and
63.4% water by mass; and
the fill comprising:
one or more active ingredients; and
optionally, one or more pharmaceutically acceptable excipients;
wherein the capsule shell is stable at pH 1.2 for at least 2 hours and dissolves at pH 6.8 within 30 minutes.
2. The dosage form of claim 1 , wherein the capsule shell is clear or transparent.
3. The dosage form of claim 1 , wherein the capsule shell is transparent and colored.
4. The dosage form of claim 1 , wherein the capsule shell has a thickness from about 0.010 inches to about 0.050 inches.
5. The dosage form of claim 1 , wherein the fill is liquid, semi-solid, or solid.
6. The dosage form of claim 1 , wherein the active ingredient comprises pharmaceutical agents, nutraceuticals, vitamins, minerals, or combinations thereof.
7. A method for preparing the enteric soft capsule of claim 1 , the method comprising:
(a) combining iota carrageenan, kappa carrageenan, hydroxypropyl starch phosphate, and methacrylic acid copolymer, together to form a dry mixture;
(b) adding glycerin, sorbitol, polyvinyl alcohol-poly ethylene glycol graft copolymer, ammonium hydroxide, triethyl citrate, and water to the dry mixture with agitation to form a wet mixture;
(c) heating the wet mixture with agitation and applying vacuum to form a gel mass;
(d) heating the gel mass for an additional period;
(i) transferring the heated gel mass to an extruder;
(ii) extruding the gel mass to form ribbons or films; and
(iii) forming an enteric soft capsule using rotary die technology comprising a fill; and
(e) drying the enteric soft capsule.
8. An enteric soft capsule comprising a fill formed by the method of claim 7 .