Which of the following statements is true of ketorolac ?
Ketorolac is an NSAID promoted for systemic use mainly as an analgesic, not as an anti-inflammatory drug (though it has typical NSAID properties).
The drug does appear to have significant analgesic efficacy and has been used successfully to replace morphine in some situations involving mild to moderate postsurgical pain.
Has potent anti-inflammatory activity
Its analgesic efficacy is equal to morphine in postoperative pain
Is used as preanaesthetic analgesic
It interacts with opioid receptor