This one works. Apparently that character "í" was an extended ASCII 237 0xED This is procmail-3.22-5

:0
* ^Subject:.*(v=EDagra|v=ECagra|v1agra|V\*iagra|V1\@gra|Prescripti0n¦M0rtgage)
{
LOG="(THE 7 DIRTY WORDS) "
:0
/dev/null
}