Hydromorphone

• intense pleasure,
• physical relaxation and decreased tension,
• decreased anxiety and worry,
• increased sleepiness ⁴.

• nausea,
• vomiting,
• constipationmeans that you're not passing stools regularly or you're unable to completely empty your bowels. More,
• headache,
• insomniadifficulty in going to sleep or in getting enough sleep,
• decreased appetite,
• feeling lightheaded or dizzy,
• increased sweating,
• hyperalgesia, or worsening pain,
• anxiety,
• depression ⁴.

• oral – 20 – 45 minutes ⁶, 30 – 60 minutes ⁵, 20 – 40 minutes ⁷.
• intravenous – 10 – 90 seconds ⁶, 0 – 1 minutes ⁵.
• insufflatedInsufflating, commonly referred to as snorting, is a method of drug administration where powdered substances are inhaled through the nose. More – 5 – 10 minutes ⁵.

• oral – 3 – 4 hours ⁶.
• intravenous – 1 – 2 hours ⁶.

• oral – 3 – 4 hours ⁵.
• intravenous – 1 – 2 hours ⁵.
• insufflatedInsufflating, commonly referred to as snorting, is a method of drug administration where powdered substances are inhaled through the nose. More – 2 – 3 hours ⁵.

• oral – 1 – 6 hours ⁵.
• intravenous – 1 – 6 hours ⁵.
• insufflatedInsufflating, commonly referred to as snorting, is a method of drug administration where powdered substances are inhaled through the nose. More – 1 – 6 hours ⁵.

Hydromorphone is a hydrogenated ketone derivative of morphine that acts as a narcotic analgesicpain relieving. It has a shorter duration of action than morphine. Hydromorphone is approximately 8 times more potent on a milligram basis than morphine. In addition, hydromorphone is better absorbed orally than is morphine. In clinical settings, Hydromorphone exerts its principal pharmacological effect on the central nervous systembrain and spinal cord and gastrointestinal tract. Its primary actions of therapeutic value are analgesiadecreased pain awareness. More and sedationthe state of being relaxed or sleepy because of a drug More. Hydromorphone appears to increase the patient’s tolerancethis is the process by which the receptors in your brain become habituated to the action of a drug. When tolerance is reached, more of the drug is required to achieve the same effect. With benzodiazepines, and probably with many other classes of drugs as well, tolerance is virtually always associated with some degree of physical dependence. If you find that you are experiencing tolerance, this is a clear warning sign that you may have formed a dependence. More for pain and to decrease discomfort, although the presence of the pain itself may still be recognised. In addition to analgesiadecreased pain awareness. More, alterations in mood, euphoriafeelings of joy and happiness and dysphoriaexperiencing little or no joy in their life, and drowsiness commonly occur. Opioids also produce respiratory depressionslowing the drive and effectiveness of breathing More by direct action on brain stem respiratory centres ².

Better absorbed orally than morphine ².

Oral 51.35% +/- 29.29%, insufflatedInsufflating, commonly referred to as snorting, is a method of drug administration where powdered substances are inhaled through the nose. More 52.4%, rectal 36.33% +/- 29.6% ⁵.

Primarily hepatic. After absorption hydromorphone is metabolised by the liver to the glucuronide conjugate which is then excreted in the urine. Hydromorphone is metabolised to the major metabolites hydromorphone-3-glucuronide, hydromorphone-3-glucoside and dihydroisomorphine-6-glucuronide ².

2.6 hours (oral); 18.6 hours for sustained release Palladone ².

Only a small amount of the hydromorphone dose is excreted unchanged in the urine. Most of the dose is excreted as hydromorphone-3-glucuronide along with minor amounts of 6-hydroxy reduction metabolites ².

2.9191 LD50the amount of a material, given all at once, which causes the death of 50% (one half) of a group of test animals. The LD50 is one way to measure the short-term poisoning potential (acute toxicity) of a material mol/kg in rats ².

Hydromorphone is a schedule II narcotic which can lead to physical dependence or addiction ².

Tolerancethis is the process by which the receptors in your brain become habituated to the action of a drug. When tolerance is reached, more of the drug is required to achieve the same effect. With benzodiazepines, and probably with many other classes of drugs as well, tolerance is virtually always associated with some degree of physical dependence. If you find that you are experiencing tolerance, this is a clear warning sign that you may have formed a dependence. More to many of the effects of hydromorphone develops with prolonged use, including therapeutic effects. This results in users having to administer increasingly large doses to achieve the same effects. The rate at which this occurs develops at different rates for different effects with tolerancethis is the process by which the receptors in your brain become habituated to the action of a drug. When tolerance is reached, more of the drug is required to achieve the same effect. With benzodiazepines, and probably with many other classes of drugs as well, tolerance is virtually always associated with some degree of physical dependence. If you find that you are experiencing tolerance, this is a clear warning sign that you may have formed a dependence. More to the constipation-inducing effects developing particularly slowly ⁶.

Hydromorphone is a narcotic analgesicpain relieving; its principal therapeutic effect is relief of pain. Hydromorphone interacts predominantly with the opioid mu-receptors. These mu-binding sites are discretely distributed in the human brain, with high densities in the posterior amygdala, hypothalamus, thalamus, nucleus caudatus, putamen, and certain cortical areas. They are also found on the terminal axons of primary afferents within laminae I and II (substantia gelatinosa) of the spinal cord and in the spinal nucleus of the trigeminal nerve. In clinical settings, Hydromorphone exerts its principal pharmacological effect on the central nervous systembrain and spinal cord and gastrointestinal tract. Hydromorphone also binds with kappa-receptors which are thought to mediate spinal analgesiadecreased pain awareness. More, miosisa medical condition characterised by contraction of the pupil for reasons other than increased light levels. More and sedationthe state of being relaxed or sleepy because of a drug More ².

• physical euphoriaan intense feeling of pleasure and well-being More,
• pupil constriction,
• skin flushing,
• appetite suppression,
• orgasm suppression,
• pain relief,
• respiratory depressionslowing the drive and effectiveness of breathing More,
• sedationthe state of being relaxed or sleepy because of a drug More,
• constipationmeans that you're not passing stools regularly or you're unable to completely empty your bowels. More,
• difficulty urinating,
• itchiness,
• nausea ⁶.

• cognitive euphoriastate of intense well-being, happiness, and excitement More,
• compulsive redosing,
• dream potentiationcan be described as a cognitive component which increases the intensity, vividness and frequency of sleeping dream states. This effect also creates higher detail and definition within dreams alongside of an increase in the likelihood of one's dreams becoming lucid. More,
• anxiety suppression,
• decreased libido ⁶.

• internal hallucinationsbest described as the perception of imagery and scenes which are experienced exclusively within a layer in front of one's open or closed eye vision and not seamlessly within the external environment around oneself. At lower levels, internal hallucinations begin with imagery which does not take up the entirety of one's visual field and is distinctively separate from its background. These can be described as spontaneous moving or still images of scenes, concepts, places, and anything one could imagine. They are manifested in varying levels of detail, ranging from ill-defined and cartoon-like in nature to completely realistic and beyond realism through seemingly impossible, non-euclidean geometric forms. They rarely hold their form for more than a few seconds before fading or shifting into another image. More ⁶.

• euphoriafeelings of joy and happiness,
• pain relief ⁷.

• pupil constriction,
• itching,
• sedationthe state of being relaxed or sleepy because of a drug More ⁷.

• drowsiness,
• CNSthe Central Nervous System, upon which certain drugs act depression,
• dizziness,
• nausea,
• vomiting,
• constipationmeans that you're not passing stools regularly or you're unable to completely empty your bowels. More,
• sweating ⁷.

The following symptoms may be more serious and may require immediate medical attention –

• rash or hivesThis is an allergic skin reaction causing localised redness, swelling, and itching.,
• new and unexplained swelling,
• trouble breathing,
• difficulty swallowing,
• chest pain,
• extreme drowsiness,
• fainting,
• seizuresthe outward effect can vary from uncontrolled jerking movement (tonic-clonic seizure) to as subtle as a momentary loss of awareness More ⁴.

Opioid overdoses can be fatal if not treated immediately by calling the local emergency medical services and administering an opioid antagonist such as naloxone to the overdosed user ⁶.

• difficulty breathing,
• slowed or stopped breathing,
• excessive sleepiness,
• dizziness,
• fainting,
• limp or weak muscles,
• narrowing or widening of the pupils,
• cold, clammy skin,
• slow or stopped heartbeat,
• cyanosisbluish tinge to fingers and lips, caused by inadequate blood supply,
• loss of consciousness or coma ⁸,
• convulsionswhen your body shakes violently without you meaning it to/seizures ¹.

• Ketamine – Both substances bring a risk of vomiting and unconsciousness. If the user falls unconscious while under the influence there is a severe risk of vomit aspirationvomit being inhaled into the lungs, a potentially life-threatening condition More if they are not placed in the recovery position.
• MXE – This combination can potentiate the effects of the opioid.
• DXM – CNSthe Central Nervous System, upon which certain drugs act depression, difficult breathing, heart issues, hepatoxicrelating to or causing injury to the liver. More, just very unsafe combination all around. Additionally if one takes dxm, their tolerancethis is the process by which the receptors in your brain become habituated to the action of a drug. When tolerance is reached, more of the drug is required to achieve the same effect. With benzodiazepines, and probably with many other classes of drugs as well, tolerance is virtually always associated with some degree of physical dependence. If you find that you are experiencing tolerance, this is a clear warning sign that you may have formed a dependence. More of opiates goes down slightly, thus causing additional synergistic effectsan effect arising between two or more agents, entities, factors, or substances that produces an effect greater than the sum of their individual effects More.
• Cocaine – Stimulants increase respiration rate allowing a higher dose of opiates. If the stimulanta drug that acts on the Central Nervous System, increasing some rates of function such as heart-rate wears off first then the opiate may overcome the patient and cause respiratory arrestRespiratory arrest is caused by airway obstruction, decreased respiratory drive, or respiratory muscle weakness. More.
• Alcohol – Both substances potentiate the ataxialoss of motor coordination More and sedationthe state of being relaxed or sleepy because of a drug More caused by the other and can lead to unexpected loss of consciousness at high doses. Place affected people in the recovery position to prevent vomit aspirationvomit being inhaled into the lungs, a potentially life-threatening condition More from excess. Memory blackouts are likely.
• GBL / GHB – The two substances potentiate each other strongly and unpredictably, very rapidly leading to unconsciousness. While unconscious, vomit aspirationvomit being inhaled into the lungs, a potentially life-threatening condition More is a risk if not placed in the recovery position.
• Tramadol – Concomitant use of tramadol increases the seizure risk in patients taking other opioids. These agents are often individually epileptogenic and may have additive effects on seizure threshold during coadministration. Central nervous system- and/or respiratory-depressant effects may be additively or synergisticallyThe effect arising between two or more agents, entities, factors, or substances that produce an effect greater than the sum of their individual effects. More present.
• Benzodiazepines – Central nervous systembrain and spinal cord and/or respiratory-depressant effects may be additively or synergisticallyThe effect arising between two or more agents, entities, factors, or substances that produce an effect greater than the sum of their individual effects. More present. The two substances potentiate each other strongly and unpredictably, very rapidly leading to unconsciousness. While unconscious, vomit aspirationvomit being inhaled into the lungs, a potentially life-threatening condition More is a risk if not placed in the recovery position. Blackouts/memory loss likely ⁵.

• PCP – PCP can reduce opioid tolerancethis is the process by which the receptors in your brain become habituated to the action of a drug. When tolerance is reached, more of the drug is required to achieve the same effect. With benzodiazepines, and probably with many other classes of drugs as well, tolerance is virtually always associated with some degree of physical dependence. If you find that you are experiencing tolerance, this is a clear warning sign that you may have formed a dependence. More, increasing the risk of overdose.
• Nitrous oxide – Both substances potentiate the ataxialoss of motor coordination More and sedationthe state of being relaxed or sleepy because of a drug More caused by the other and can lead to unexpected loss of consciousness at high doses. While unconscious, vomit aspirationvomit being inhaled into the lungs, a potentially life-threatening condition More is a risk if not placed in the recovery position. Memory blackouts are likely.
• Amphetamines – Stimulants increase respiration rate allowing a higher dose of opiates. If the stimulanta drug that acts on the Central Nervous System, increasing some rates of function such as heart-rate wears off first then the opiate may overcome the patient and cause respiratory arrestRespiratory arrest is caused by airway obstruction, decreased respiratory drive, or respiratory muscle weakness. More.
• MAOIsMAOIs may be used to treat the symptoms of depression. More – Coadministration of monoamine oxidase inhibitors (MAOIsMAOIs may be used to treat the symptoms of depression. More) with certain opioids has been associated with rare reports of severe and fatal adverse reactions. There appear to be two types of interaction, an excitatory and a depressive one. Symptoms of the excitatory reaction may include agitation, headache, diaphoresisexcessive sweating, hyperpyrexiaan excessive elevation of body temperature above the average normal temperature. More, flushing, shivering, myoclonusa brief, involuntary twitching of a muscle or group of muscles. More, rigidity, tremor, diarrhoeaWhere you frequently pass watery or loose faeces, hypertensionhigh blood pressure, tachycardiarapid pulse rate, seizuresthe outward effect can vary from uncontrolled jerking movement (tonic-clonic seizure) to as subtle as a momentary loss of awareness More, and coma. Death has occurred in some cases ⁵.

Hydromorphone can be detected in the urine for 3 – 4 days ⁸.

A blood test can detect Hydromorphone for up to 24 hours ⁸.

A saliva test can detect Hydromorphone for up to 1 – 4 days ⁸.

Hydromorphone can be detected with a hair follicle drug test for up to 90 days ⁸.