Abstract: Compounds of formula I, ##STR1## wherein M is Met, DMet, MeMet, MetO, Ahx, DAhx, MeAhx, Leu, MeLeu, Pro, Ile, MeIle, Ala or Lys, G is Gly, DAla, Pro, Ala, .beta.Ala or Sar; W is Trp, MeTrp, Ala or Nal; X is Met, MeMet, MetO, Ahx, MeAhx, Leu, MeLeu, Pro, Ile, MeIle, Ala, Phe, Lys or Lys(R.sup.8); J is Asp, DAsp, MeAsp, Asp(OBn), Ala or MeDAsp; F.sup.1 is (S)--NH, (R)--NH, (S)--R.sup.1 N or (R)--R.sup.2 N; F.sup.2 is H, Cl, I, Br, F, NO.sub.2, NH.sub.2, R.sup.3 or OR.sup.4 ; Z is NH.sub.2, NHR.sup.5 or NR.sup.5 R.sup.6 ; R.sup.1, R.sup.2, R.sup.3, R.sup.5 and R.sup.6 are alkyl C.sub.1-6 ; R.sup.4 is H or alkyl C.sub.1-4 ; R.sup. is OH or OSO.sub.3 H; and pharmaceutically acceptable derivatives thereof; are useful as therapeutic agents, in particular in the inhibition of feeding.