Italian to English Medical Medical: Pharmaceuticals

The term appears in a Summary of product characteristics under Method of administration.

e.g.

Somministrazione per infusione locale: 100.000 U.I. in 20 minuti, seguita da 75.000 U.I./ora per 8-24 ore somministrate per arterioclisi.

Is this intra-arterial injection or something else? (Found a Spanish glossary entry which translates 'Arterioclisis' as 'inyección intraarterial').