Hydromorphone, sold under brand names like Dilaudid, is a potent opioid pain medication intended for severe pain cases, often in clinical settings. Some websites may claim to sell Hydromorphone online without a prescription and offer overnight delivery, but this is both illegal and highly dangerous. Taking this medication without medical oversight can lead to overdose, respiratory failure, or death. For safety and legality, Hydromorphone should only be used under strict medical supervision with a valid prescription.