Soft capsules being easily disintegratable in the stomach and avoiding any ready leakage of contents at mastication, which soft capsules encapsulate (2R)-2-propyloctanoic acid or its salt and are characterized in that there is realized at least one property, preferably all thereof, selected from among (A) strength of 150 to 400 N as measured by a cracking load test; (B) disintegration time of 3 to 10 min as measured by a disintegration testing method stipulated in Japanese Pharmacopoeia; (C) thickness of 0.05 to 0.50 mm with respect to the central part of capsule shell; (D) thickness of 0.10 to 0.55 mm with respect to the first joint part of capsule shell; (E) thickness of 0.05 to 0.50 mm with respect to the second joint part of capsule shell; and (F) capsule shell water content of 5.0 to 9.0%.
展开▼
