<span style = 'background-color: #dae8f4'>tramadol</span>
is a non-narcotic, non-steroidal pain killer. Most reports indicate that it is less likely to cause the nausea and other side effects that can result from extended use narcotic and NSAID pain killers. Since you cat has chronic pain (arthritis), it is probably a better choice for
longer term, low dosage use. No drug is completely safe or without potential side effects. But given the particulars about your cat, tramadol
seems to be a good choice with a good balance of effectiveness vs.