PMID- 602879 OWN - NLM STAT- MEDLINE DCOM- 19780329 LR - 20190823 IS - 0065-4299 (Print) IS - 0065-4299 (Linking) VI - 7 IP - 5-6 DP - 1977 Dec TI - Administration of anti-inflammatory compounds in silastic capsules. PG - 555-62 AB - Eleven compounds, within hollow capsules of polydimethylsiloxane (Silastic), have been studied with regard to their rate of release and anti-inflammatory activity in the Adjuvant Arthritic (AA) rat. All of the compounds diffused through the capsule wall to some extent with cortisone acetate exhibiting the slowest and ibuprofen the fastest release rate. Of the eleven encapsulated compounds, only phenylbutazone, indomethacin, ibuprofen and naproxen significantly reduced right and left paw volume below that of control value. Silastic encapsulation increases efficacy of phenylbutazone and indomethacin two to three times over subcutaneous or oral administration. Based on potency and duration of constant release, indomethacin and naproxen should exhibit anti-inflammatory activity in excess of 12 months. FAU - Jones, R C AU - Jones RC FAU - Datko, L J AU - Datko LJ LA - eng PT - Comparative Study PT - Journal Article PL - Switzerland TA - Agents Actions JT - Agents and actions JID - 0213341 RN - 0 (Anti-Inflammatory Agents) RN - 0 (Capsules) RN - 0 (Silicone Elastomers) RN - 57Y76R9ATQ (Naproxen) RN - GN5P7K3T8S (Phenylbutazone) RN - XXE1CET956 (Indomethacin) SB - IM MH - Administration, Oral MH - Animals MH - Anti-Inflammatory Agents/*administration & dosage MH - Arthritis, Experimental/drug therapy MH - Capsules MH - Indomethacin/administration & dosage MH - Injections, Subcutaneous MH - Male MH - Naproxen/administration & dosage MH - Phenylbutazone/administration & dosage MH - Rats MH - Silicone Elastomers EDAT- 1977/12/01 00:00 MHDA- 1977/12/01 00:01 CRDT- 1977/12/01 00:00 PHST- 1977/12/01 00:00 [pubmed] PHST- 1977/12/01 00:01 [medline] PHST- 1977/12/01 00:00 [entrez] AID - 10.1007/BF02111129 [doi] PST - ppublish SO - Agents Actions. 1977 Dec;7(5-6):555-62. doi: 10.1007/BF02111129.