Hydromorphone-Induced Tactile Hallucinations: Rare Opioid Side Effect

Area of Science:

• Pharmacology
• Neurology
• Toxicology

Background:

• Opioids are potent analgesics frequently prescribed for pain management.
• In 2018, approximately 168 million opioid prescriptions were issued in the U.S.
• Adverse events affect up to 80% of patients on opioid therapy.

Observation:

• Hallucinosis, though uncommon, is a known opioid side effect.
• Opioid-induced hallucinations are typically auditory and visual, rarely tactile.
• These symptoms may be misdiagnosed as underlying psychiatric conditions.

Findings:

• This report details a case of oral hydromorphone inducing both visual and tactile hallucinations.
• Discontinuation of hydromorphone resulted in the immediate resolution of psychotic symptoms.
• This is the first documented instance of hydromorphone causing tactile hallucinations.

Implications:

• Physicians should remain vigilant for opioid-induced hallucinosis, even as prescriptions decline.
• Accurate identification of opioid side effects is crucial for appropriate patient management.
• Increased awareness of this adverse effect can prevent misdiagnosis and guide treatment decisions.