Code:
SQL> CREATE TABLE BP (
BV_ID VARCHAR2 (32) DEFAULT NULL NOT NULL,
BP_ID VARCHAR2 (32) DEFAULT NULL NOT NULL,
CONSTRAINT BP_PK
PRIMARY KEY ( BV_ID, BP_ID )
)  ;

Table created.

SQL> insert into bp select substr(object_name,1,32), substr(object_name,1,32) from dba_objects
  2  where rownum <101 ;

100 rows created.

SQL> commit ;

Commit complete.

SQL> drop table bp ;

Table dropped.
I don't see any problem in dropping a table.
However, if you have referential integrity constraint, then you need to disable it also.

Tamil