General
Because of its high concentration, the delivery of precise doses of DILAUDID-HP may be difficult if low doses of hydromorphone are required. Therefore, DILAUDID-HP should be used only if the amount of hydromorphone required can be delivered accurately with this formulation.
Gastrointestinal Effects
DILAUDID INJECTION and DILAUDID-HP should not be administered to patients with
gastrointestinal obstruction, especially paralytic ileus, because hydromorphone
diminishes the propulsive peristaltic wave in the gastrointestinal tract and
may prolong the obstruction.
The administration of DILAUDID INJECTION or DILAUDID-HP may obscure the diagnosis or clinical course in patients with acute abdominal condition.
Use in Pancreatic/Biliary Tract Disease
DILAUDID INJECTION and DILAUDID-HP should be used with caution in patients with biliary tract disease, including acute pancreatitis, as hydromorphone may cause spasm of the sphincter of Oddi and diminish biliary and pancreatic secretions.
Special Risk Patients
DILAUDID INJECTION and DILAUDID-HP should be given with caution and the initial dose should be reduced in the elderly or debilitated and those with severe impairment of hepatic, pulmonary or renal function; myxedema or hypothyroidism; adrenocortical insufficiency (e.g., Addison's Disease); CNS depression or coma; toxic psychoses; prostatic hypertrophy or urethral stricture; acute alcoholism; delirium tremens; or kyphoscoliosis.
In the case of DILAUDID-HP, however, the patient is presumed to be receiving
an opioid to which he or she exhibits tolerance and the initial dose of DILAUDID-HP
selected should be estimated based on the relative potency of hydromorphone
and the opioid previously used by the patient. (see DOSAGE AND ADMINISTRATION).
The administration of opioid analgesics including DILAUDID INJECTION and DILAUDID-HP may aggravate preexisting convulsions in patients with convulsive disorders.
Reports of mild to severe seizures and myoclonus have been reported in severely compromised patients, administered high doses of parenteral hydromorphone, for cancer and severe pain. Opioid administration at very high doses is associated with seizures and myoclonus in a variety of diseases where pain control is the primary focus.
Use in Drug and Alcohol Dependent Patients
DILAUDID INJECTION and DILAUDID-HP should be used with caution in patients
with alcoholism and other drug dependencies due to the increased frequency of
opioid tolerance, dependence, and the risk of addiction observed in these patient
populations. Abuse of DILAUDID INJECTION or DILAUDID-HP in combination with
other CNS depressant drugs can result in serious risk to the patient.
Hydromorphone is an opioid with no approved use in the management of addictive disorders.
Driving and Operating Machinery
DILAUDID INJECTION and DILAUDID-HP may impair mental and/or physical ability required for the performance of potentially hazardous tasks (e.g. driving, operating machinery). Patients should be cautioned accordingly. DILAUDID INJECTION and DILAUDID-HP may produce orthostatic hypotension in ambulatory patients.
Tolerance and Physical Dependence
Tolerance is the need for increasing doses of opioids to maintain a defined effect such as analgesia (in the absence of disease progression or other external factors). Physical dependence is manifested by withdrawal symptoms after abrupt discontinuation of a drug or upon administration of an antagonist. Physical dependence and tolerance are not unusual during chronic opioid therapy.
The opioid abstinence or withdrawal syndrome is characterized by some or all of the following: restlessness, lacrimation, rhinorrhea, yawning, perspiration, chills, myalgia, mydriasis. Other symptoms also may develop, including: irritability, anxiety, backache, joint pain, weakness, abdominal cramps, insomnia, nausea, anorexia, vomiting, diarrhea, or increased blood pressure, respiratory rate, or heart rate.
In general, opioids used regularly should not be abruptly discontinued.
Carcinogenesis, Mutagenesis, Impairment of Fertility
No carcinogenicity studies have been conducted in animals.
Hydromorphone was not mutagenic in the in vitro Ames reverse mutation
assay, or the human lymphocytes chromosome aberration assay. Hydromorphone was
not clastogenic in the in vivo mouse micronucleus assay.
No effects on fertility, reproductive performance, or reproductive organ morphology were observed in male or female rats given oral doses up to 7 mg/kg/day which is equivalent to and 3-fold higher than the human dose of DILAUDID-HP when substituted for ORAL LIQUID or 8 mg TABLET, respectively, on a body surface area basis.
Pregnancy
Pregnancy Category C
No effects on teratogenicity or embryotoxicity were observed in female rats given oral doses up to 7 mg/kg/day which is equivalent to and 3-fold higher than the human dose of DILAUDID-HP, on a body surface area basis. Hydromorphone produced skull malformations (exencephaly and cranioschisis) in Syrian hamsters given oral doses up to 20 mg/kg during the peak of organogenesis (gestation days 8-9). The skull malformations were observed at doses approximately 2-fold and 7-fold higher than the human dose of DILAUDID-HP when substituted for ORAL LIQUID or 8 mg TABLET, respectively, on a body surface area basis. There are no adequate and well-controlled studies of DILAUDID INJECTION or DILAUDID-HP in pregnant women.
Hydromorphone crosses the placenta, resulting in fetal exposures. DILAUDID
INJECTION or DILAUDID-HP should be used in pregnant women only if the potential
benefit justifies the potential risk to the fetus (see Labor and Delivery
and Drug Abuse And Dependence).
Nonteratogenic Effects
Babies born to mothers who have been taking opioids regularly prior to delivery will be physically dependent. The withdrawal signs include irritability and excessive crying, tremors, hyperactive reflexes, increased respiratory rate, increased stools, sneezing, yawning, vomiting, and fever. The intensity of the syndrome does not always correlate with the duration of maternal opioid use or dose. There is no consensus on the best method of managing withdrawal. Approaches to the treatment of this syndrome have included supportive care and, when indicated, drugs such as paregoric or phenobarbital.
Labor and Delivery
DILAUDID INJECTION and DILAUDID-HP are contraindicated in Labor and Delivery
(see CONTRAINDICATIONS).
Nursing Mothers
Low levels of opioid analgesics have been detected in human milk. As a general rule, nursing should not be undertaken while a patient is receiving DILAUDID INJECTION or DILAUDID-HP since it, and other drugs in this class, may be excreted in the milk.
Pediatric Use
Safety and effectiveness have not been established.
Geriatric Use
Clinical studies of DILAUDID INJECTION and DILAUDID-HP did not include sufficient
numbers of subjects aged 65 and over to determine whether they respond differently
from younger subjects. In general, dose selection for an elderly patient should
be cautious, usually starting at the low end of the dosing range, reflecting
the greater frequency of decreased hepatic, renal, or cardiac function, and
of concomitant disease or other drug therapy. (see DOSAGE
AND ADMINISTRATION - Individualization Of Dosage and PRECAUTIONS).
Last updated on RxList: 5/29/2009