Can mobic (meloxicam) affect lithium levels? i take 600 of lithium and start 7.5mg bid today.

Yes: Mobic (meloxicam) can increase lithium levels in the blood. Need to monitor for signs of lithium toxicity. Here is a source. Info on lithium is near the bottom of the page under "lithium" http://www.Rxlist.Com/mobic-drug/side-effects-interactions.Htm.

Possibly: Possibly. Any time medications are added, it is important to assess effects on other ingested medications, especially if they are used close to maximum doses.