Controlled release device
PCT No. PCT/GB93/02271 Sec. 371 Date Jun. 27, 1995 Sec. 102(e) Date Jun. 27, 1995 PCT Filed Nov. 4, 1993 PCT Pub. No. WO94/09746 PCT Pub. Date May 11, 1994A controlled release capsule comprises a male plug (2) formed of a water-swellable hydrogel which is engaged with a neck portion (4) of a female...
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