Not Medical Advice: The white pill with imprint M 4 has been identified as Hydromorphone hydrochloride 4 mg.
Hydromorphone is used in the treatment of chronic pain, pain, cough, anesthetic adjunct and belongs to the drug class narcotic analgesics.
Find patient medical information for hydromorphone hydrochloride (dilaudid) on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings.
Fighting chronic pain is a lifelong struggle for many. It is a wide-sweeping term, often describing pain that lasts more than three to six months or pain beyond the point of tissue healing. Check out these 11 chronic pain control techniques that are effective for pain control shared by Spine-health.com.