Can ranitidine cause a sore tongue dry mouth an tongue to swell?

Somewhat: Dry mouth yes. Swelling no. If your lips swell or anything else starts swelling noticeably such as your lips you might have an allergic reaction see a physician right away. Do you take any other medications? This might be an interaction. List the medications you take in your post.

Ranitidine: It's possible you can have a reaction to ranitidine. The symptoms you may have is called angioedema. I would suggest stopping this, and see if symptoms subside. If your airway is compromised from to much tongue or lip swelling go to the hospital immediately.

H2 BLOCKER: ZANTAC (ranitidine) IS AN H2Blocker. Some side effects may be sedation and dry mouth