Cocaine-Related Psychiatric Disorders Treatment & Management

Updated: Apr 14, 2016
  • Author: Christopher P Holstege, MD; Chief Editor: David Bienenfeld, MD  more...
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Treatment

Medical Care

People who abuse cocaine present with many different medical symptoms. At times, clinicians may have difficulty determining which signs and symptoms are significant and which are not. For example, cocaine-induced chest pain is usually benign. However, these patients may have an acute coronary syndrome, pneumothorax, pulmonary embolism, pulmonary edema, or aortic dissection. Before these patients are discharged home or admitted to a psychiatric ward, the clinicians involved must evaluate the patient for other nonpsychiatric medical problems.

Cocaine intoxication

Acute cocaine intoxication is usually self limited and can be managed with supportive care.

Benzodiazepines are the first-line therapy in treating patients who are intoxicated from cocaine and are extremely agitated. Typically, benzodiazepines can be titrated until the patient is calm and the pulse and blood pressure have stabilized.

Use neuroleptics with caution in acute intoxication. Acute hyperthermia syndromes associated with acute cocaine intoxication have been reported, and the use of neuroleptics with the risk of neuroleptic malignant syndrome may confuse this situation.

Specific laboratory tests can be ordered as necessary.

Cocaine-induced chest pain

Chest pain associated with cocaine use may be from musculoskeletal, cardiovascular, or pulmonary etiologies.

Obtain a chest radiograph to exclude localized infiltrates, pneumothorax, pneumomediastinum, and pulmonary edema. An ECG and serial cardiac enzyme evaluation assist in excluding acute myocardial infarction and acute coronary syndromes.

If an acute coronary syndrome is suggested, then oxygen, aspirin, benzodiazepines, and nitroglycerin can be administered. Nonselective beta-blockers are best avoided in all patients who are intoxicated with cocaine.

Hypertension

Cocaine-induced hypertension is treated first with benzodiazepines. Benzodiazepines decrease the cocaine-induced sympathomimetic drive from the CNS.

If this fails, phentolamine may be considered. Phentolamine is an alpha-antagonist and counteracts cocaine's vasoconstrictive effects.

Nitroprusside and nitroglycerin also may be considered.

Seizures

Cocaine-induced seizures may be either generalized or partial and result from cocaine toxicity itself or from a cocaine-induced process, such as a cerebral vascular accident.

The first-line therapy is benzodiazepines, followed by barbiturates.

Consider a head CT scan for seizures associated with the use of cocaine.

No evidence exists that anticonvulsants prevent cocaine-induced seizures, and they are not recommended for this purpose.

Rhabdomyolysis

Rhabdomyolysis may manifest in patients who are agitated and intoxicated with cocaine. This disorder must be recognized early to prevent secondary renal failure.

Obtain a creatine kinase measurement and test the urine for myoglobin. If the urinalysis reveals blood on the dipstick but no red blood cells upon microscopic examination, then myoglobinuria may be present.

Treatment of rhabdomyolysis focuses on ensuring adequate urine output and, possibly, alkalization of the urine.

Dyspnea

Cocaine-induced dyspnea has multiple causes.

Obtain a chest radiograph to exclude pulmonary edema, focal infiltrate, pneumothorax, and pneumomediastinum

Sleep disturbance

In a study by Morgan et al, modafinil was evaluated for its ability to normalize sleep patterns in chronic cocaine users. Progressive cocaine abstinence is associated with disruptive sleep outcomes. In patients who received modafinil each morning, nocturnal sleep was promoted and daytime sleepiness decreased compared with those taking placebo. [8]

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Consultations

A number of consultations may be necessary when caring for a patient who abuses cocaine. Consultations to consider include medical toxicologists, regional poison control center personnel, cardiologists, neurologists, psychiatrists, substance abuse clinicians, and social services personnel, depending on the presenting signs and symptoms.

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Prevention

Vaccination

Recent work has suggested that a cocaine vaccine may induce the formation of sufficient antibodies to reduce cocaine use.

Martell et al conducted a phase IIb randomized, double-blind, placebo-controlled trial to evaluate the immunogenicity, safety, and efficacy of a cocaine vaccine in cocaine-dependent and opioid-dependent individuals. Of the 115 patients recruited, 94 (82%) completed the trial. Participants were administered 5 vaccinations with placebo or succinylnorcocaine over 12 weeks. Within the vaccine group, those with serum IgG anticocaine antibody levels ≥ 43 mcg/mL had significantly more cocaine-free urine samples than those with serum levels < 43 mcg/mL and those who received placebo. Reduction of cocaine use by 50% was significantly greater if a high IgG level was achieved (53% of participants) compared with a low IgG level (23% of participants) (P =0.048). [9]

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