If i crush azitromycin and put it into gelatin capsules to make it easier to swallow it it still effective for treating chlamydia?

Yes, but....: You could do this if you can swallow capsules but have difficulty with pills. There is also a powder version of azithromycin designed to be mixed in water or juice. It's somewhat bitter, but goes down quickly. There is also the liquid suspension intended mostly for children, but it's another possibility. Ask your doctor or pharmacist. (Edited reply, correcting a mistake in my first one.)