1. (used of drugs) capable of being injected
The Collaborative International Dictionary of English v.0.48:
injectable \injectable\ adj.
1. capable of being conveniently injected; -- used of drug
preparations, such as sterile lyophilize medicine in a
serum-capped vial. Opposite of uninjectable.
[WordNet 1.5 +PJC]
2. Requiring injection for administration; -- of drugs,
especially those not active by oral administration.
Opposite of orally active.
WordNet (r) 3.0 (2006):
adj 1: (used of drugs) capable of being injected [ant: