Information A prescription drug called 50mg Tramadol Hydrochloride Capsules is frequently given to treat moderate to moderately severe pain. Tramadol, a member of the opioid analgesic drug class, relieves both acute and chronic pain by acting on the central nervous system. It is a medication that needs to be used carefully and strictly according to medical advice because of the possibility of side effects and dependence, even if it can be quite beneficial for many individuals.