Goprelto

Dosage of cocaine hydrochloride must be individualized based on the specific procedure, the area to be anesthetized, and the patient's physical status. Healthcare providers aim to use the lowest effective dose to achieve adequate anesthesia and vasoconstriction while minimizing the risk of systemic toxicity.

• Standard Concentration: The most common concentration used is a 4% solution (40 mg/mL).
• Maximum Recommended Dose: For the FDA-approved 4% solution (e.g., Goprelto), the recommended dose is two soaked pledgets (containing approximately 40 mg each) per nostril, for a total of 160 mg. Some clinical guidelines suggest a maximum dose of 1 mg/kg to 3 mg/kg of body weight, but the total dose should generally not exceed 150 mg to 200 mg in a single session.
• Application Time: Pledgets are typically left in contact with the nasal mucosa for 20 minutes to achieve peak effect before the procedure begins.

Cocaine hydrochloride is generally not approved for use in pediatric patients. The safety and efficacy of modern formulations like Goprelto and Numbrino have not been established in individuals under the age of 18. Children are at a significantly higher risk for systemic toxicity and adverse cardiovascular effects due to their lower body mass and potentially different metabolic rates.

Renal Impairment

No specific dosage adjustments are typically provided for patients with renal impairment, as the parent drug is primarily metabolized by esterases in the blood and liver. However, since metabolites are excreted renally, caution is advised in patients with severe end-stage renal disease (ESRD).

Hepatic Impairment

Patients with significant hepatic impairment may have reduced levels of plasma cholinesterase and hepatic esterases. This can lead to a decreased rate of cocaine metabolism, resulting in higher and more prolonged plasma concentrations. Healthcare providers should use the lowest possible dose and monitor these patients closely for signs of systemic toxicity (e.g., increased heart rate, agitation).

Elderly Patients

Geriatric patients may be more sensitive to the cardiovascular and central nervous system effects of cocaine. Clinical studies suggest that lower doses should be considered, and vital signs must be monitored rigorously during and after the procedure.

Cocaine hydrochloride for medical use is only administered by trained healthcare professionals in a clinical or hospital setting. It is not available for home use or self-administration.

• Preparation: The solution is measured precisely. If using pledgets, they are soaked in the solution and the excess is squeezed out to prevent accidental swallowing or inhalation.
• Application: The healthcare provider places the pledgets into the nasal cavity using specialized instruments. The patient is usually in a seated or slightly reclined position.
• Monitoring: Throughout the application and the subsequent procedure, the provider will monitor the patient's blood pressure, heart rate, and oxygen levels.
• Storage: The medication is stored in a secure, double-locked cabinet (C-II safe) at room temperature (20°C to 25°C / 68°F to 77°F) and is subject to strict inventory tracking.

Because cocaine hydrochloride is administered as a one-time dose for a specific procedure by a healthcare professional, the concept of a 'missed dose' does not apply. If a procedure is delayed, the provider will determine if re-application is necessary based on the duration of the anesthetic effect.

Cocaine overdose in a clinical setting is a medical emergency. It usually results from accidental systemic absorption or rapid administration.

• Signs of Overdose: Initial symptoms include anxiety, talkativeness, restlessness, tremors, and rapid breathing. This can progress to severe hypertension (high blood pressure), tachycardia (rapid heart rate), cardiac arrhythmias, seizures, and hyperthermia (dangerously high body temperature). In severe cases, it can lead to respiratory failure or cardiac arrest.
• Emergency Measures: Treatment is primarily supportive. This includes maintaining the airway, providing oxygen, and using medications like benzodiazepines (e.g., diazepam) to control seizures and agitation. Rapid cooling may be necessary for hyperthermia. Nitroglycerin or phentolamine may be used to manage severe hypertension.

> Important: Follow your healthcare provider's dosing instructions. Do not attempt to obtain or use this medication outside of a supervised medical environment.

Because cocaine is applied topically to the nose, many of its common side effects are localized to the site of application or related to mild systemic absorption of its stimulant properties. These may include:

• Headache: This is the most frequently reported side effect. It may feel like a dull ache or pressure in the forehead or temples and usually resolves within a few hours after the procedure.
• Epistaxis (Nosebleed): While cocaine is a vasoconstrictor, the physical application of pledgets or the subsequent procedure can irritate the nasal lining, leading to minor bleeding once the effects wear off.
• Nasal Discomfort: Patients may experience a stinging or burning sensation upon application, or a feeling of 'fullness' in the nose.
• Hypertension (Mild): A temporary increase in blood pressure is common due to the drug's effect on the sympathetic nervous system.
• Tachycardia: A mild increase in heart rate or a feeling of 'heart palpitations' may occur.

• Anxiety or Nervousness: Some patients may feel 'jittery' or unusually alert.
• Nausea: A feeling of stomach upset, sometimes accompanied by a metallic taste in the mouth if the solution drips down the throat.
• Dizziness: A brief feeling of lightheadedness, especially when standing up quickly after the procedure.
• Insomnia: If the procedure is performed late in the day, the stimulant effects may interfere with sleep for one night.

• Hypersensitivity Reactions: While rare with ester-type anesthetics, some patients may develop a rash, hives, or localized swelling.
• Anosmia: A temporary loss of the sense of smell.
• Ulceration: Localized tissue death (necrosis) in the nasal septum if the concentration is too high or contact time is excessive.

> Warning: Stop the procedure and call for emergency medical help immediately if you experience any of the following during or after receiving cocaine hydrochloride:

• Chest Pain (Angina): Cocaine increases the heart's demand for oxygen while simultaneously narrowing the coronary arteries. This can lead to a heart attack (myocardial infarction), even in patients without prior heart disease.
• Seizures: High systemic levels can trigger sudden, uncontrolled electrical activity in the brain.
• Severe Hypertension: Blood pressure spikes that can lead to a stroke or intracranial hemorrhage (bleeding in the brain).
• Ventricular Arrhythmias: Irregular heart rhythms that can be fatal if not treated immediately.
• Difficulty Breathing: Signs of pulmonary edema or severe bronchospasm.
• Psychosis: Sudden onset of hallucinations, paranoia, or extreme agitation.

In a clinical setting, cocaine is used as a one-time or infrequent application. However, repeated or chronic exposure (as seen in misuse) leads to devastating long-term effects:

• Nasal Septal Perforation: Chronic vasoconstriction causes the tissue in the nose to die, eventually creating a hole in the septum.
• Cardiovascular Disease: Chronic use leads to permanent thickening of the heart muscle (hypertrophy) and accelerated atherosclerosis (hardening of the arteries).
• Neurological Changes: Long-term changes in dopamine receptors can lead to chronic depression and cognitive deficits.

Cocaine hydrochloride carries a prominent FDA Black Box Warning regarding its potential for abuse and dependence.

• Abuse and Dependence: Cocaine has a high potential for abuse. Its use may lead to severe psychological or physical dependence. The human experience with cocaine has demonstrated that it is a highly addictive substance. Healthcare providers must ensure it is used only for indicated medical procedures and that the drug is stored and tracked according to Schedule II requirements. It is not for use in patients with a history of substance use disorder unless the benefits clearly outweigh the risks and strict monitoring is in place.

Report any unusual symptoms to your healthcare provider immediately. If you are at home and experience chest pain or severe headache after a procedure involving cocaine, call 911.

Cocaine hydrochloride is a potent medication that requires careful screening of patients before use. Because it significantly stimulates the sympathetic nervous system, it can place undue stress on the heart and vascular system. Patients must disclose their full medical history, especially any history of heart disease, high blood pressure, or drug allergies, to their healthcare provider.

WARNING: ABUSE AND DEPENDENCE

Cocaine hydrochloride has a high potential for abuse and may lead to severe psychological or physical dependence. Use of cocaine hydrochloride should be limited to the indicated medical procedures. Strict adherence to Schedule II regulations is required for storage, handling, and administration.

• Cardiovascular Risks: Cocaine is a potent vasoconstrictor and stimulant. It can cause significant increases in heart rate and blood pressure. It should be used with extreme caution in patients with coronary artery disease, a history of heart attack, cardiac arrhythmias, or poorly controlled hypertension. In some cases, cocaine can trigger a 'vasospastic' heart attack even in healthy individuals.
• Seizure Risk: Cocaine lowers the seizure threshold. Patients with a history of epilepsy or those taking other medications that lower the seizure threshold should be monitored closely.
• Allergic Reactions: Patients with a known hypersensitivity to ester-type local anesthetics (like procaine or benzocaine) should not receive cocaine. Anaphylaxis, though rare, is a medical emergency.
• Pseudocholinesterase Deficiency: A small percentage of the population has a genetic deficiency in the enzyme pseudocholinesterase, which is responsible for breaking down cocaine. These individuals are at a much higher risk for prolonged drug effects and systemic toxicity.
• Thyroid Disease: Patients with hyperthyroidism (overactive thyroid) may be more sensitive to the stimulant effects of cocaine, increasing the risk of 'thyroid storm' or severe tachycardia.

During and after the administration of cocaine hydrochloride, healthcare providers must perform the following:

• Continuous Vital Signs: Monitoring of heart rate (ECG/EKG) and blood pressure is mandatory.
• Pulse Oximetry: To ensure adequate oxygenation of the blood.
• Neurological Assessment: Observation for signs of agitation, tremors, or changes in mental status.

Because cocaine can cause dizziness, anxiety, and potential 'rebound' fatigue as the drug wears off, patients should not drive or operate heavy machinery for at least 24 hours following the procedure. A responsible adult should be available to drive the patient home.

Alcohol should be strictly avoided before and for at least 24 to 48 hours after receiving cocaine hydrochloride. The combination of alcohol and cocaine leads to the formation of a unique metabolite in the liver called cocaethylene. Cocaethylene is more toxic to the heart and has a longer half-life than cocaine itself, significantly increasing the risk of sudden cardiac death.

In a clinical setting, cocaine is used as a single-dose application. There is no requirement for tapering when used appropriately for a medical procedure. However, if a patient has been using cocaine illicitly, sudden discontinuation can lead to a 'crash' characterized by severe depression, fatigue, and intense drug cravings.

> Important: Discuss all your medical conditions, especially heart or blood pressure issues, with your healthcare provider before starting any procedure involving Cocaine.

Certain medications should never be used in conjunction with cocaine hydrochloride due to the risk of fatal complications:

• Monoamine Oxidase Inhibitors (MAOIs): Drugs like phenelzine, selegiline, or tranylcypromine prevent the breakdown of norepinephrine. Since cocaine increases norepinephrine levels, the combination can lead to a 'hypertensive crisis'—a sudden, life-threatening spike in blood pressure that can cause a stroke or heart attack. Cocaine should not be used within 14 days of taking an MAOI.
• Epinephrine (Adrenaline): While sometimes used together in specific 'TAC' (Tetracaine, Adrenaline, Cocaine) formulations in the past, the combination significantly increases the risk of tissue necrosis and severe cardiovascular stimulation. Modern FDA-approved cocaine products generally should not be mixed with additional epinephrine.

• Beta-Blockers: Medications like propranolol or metoprolol are often used for heart conditions. If a patient on beta-blockers receives cocaine, it can lead to 'unopposed alpha-adrenergic stimulation.' This causes extreme vasoconstriction and a dangerous rise in blood pressure because the 'balancing' effect of the beta receptors is blocked.
• Tricyclic Antidepressants (TCAs): Drugs like amitriptyline or nortriptyline also inhibit the reuptake of norepinephrine. Combining them with cocaine can lead to severe hypertension and cardiac arrhythmias.
• Sympathomimetic Amines: This includes over-the-counter decongestants (pseudoephedrine) and ADHD medications (methylphenidate, amphetamines). These drugs add to the stimulant effects of cocaine, increasing the risk of heart strain.

• Volatile Anesthetics: General anesthetics used in surgery (like halothane or desflurane) can sensitize the heart to the effects of catecholamines. Using cocaine during general anesthesia requires careful monitoring by an anesthesiologist to prevent arrhythmias.
• CYP3A4 Inhibitors: Drugs that inhibit the CYP3A4 enzyme (like ketoconazole or clarithromycin) may slightly increase the levels of the active metabolite norcocaine, though the clinical impact is usually secondary to the esterase metabolism pathway.

• Caffeine: High intake of caffeine from coffee, tea, or energy drinks can exacerbate the tachycardia and jitteriness caused by cocaine. Patients should limit caffeine on the day of their procedure.
• Alcohol: As mentioned previously, alcohol reacts with cocaine to form cocaethylene, a highly cardiotoxic substance. This interaction is a major cause of cocaine-related fatalities.

• St. John's Wort: May affect the metabolism of many drugs, though its specific interaction with topical cocaine is not well-documented. It is best to avoid it before surgery.
• Ephedra/Ma Huang: These herbal stimulants can dangerously increase the cardiovascular risks of cocaine.

• Urine Drug Screens: Clinical administration of cocaine hydrochloride will result in a positive test for cocaine metabolites (benzoylecgonine) for several days. Patients should be provided with documentation of their medical procedure if they are subject to workplace drug testing.
• Liver Function Tests: In rare cases of systemic toxicity, transient elevations in liver enzymes may occur.

For each interaction, the primary mechanism is usually the additive effect on the sympathetic nervous system or the interference with neurotransmitter reuptake. Management involves avoiding the combination or rigorous monitoring of vital signs.

> Important: Tell your doctor about ALL medications, supplements, and herbal products you are taking, including over-the-counter cold medicines.

Cocaine hydrochloride must NEVER be used in the following circumstances:

• Hypersensitivity to Ester Anesthetics: If a patient has a known allergy to cocaine or other ester-type local anesthetics (e.g., procaine, tetracaine, benzocaine), the use of cocaine is strictly prohibited. An allergic reaction can lead to anaphylaxis, a life-threatening condition involving airway swelling and a drop in blood pressure.
• Known or Suspected Pregnancy: Unless the benefit of the procedure clearly outweighs the significant risks to the fetus (such as in a life-saving emergency), cocaine should be avoided due to its potent vasoconstrictive effects on the placenta.
• Recent MAOI Use: Use within 14 days of taking a Monoamine Oxidase Inhibitor is an absolute contraindication due to the risk of fatal hypertensive crisis.

These are conditions where the healthcare provider must perform a careful risk-benefit analysis before deciding to use cocaine:

• Severe Cardiovascular Disease: Patients with unstable angina, recent myocardial infarction (within 6 months), or severe heart failure are at high risk for cardiac complications.
• Uncontrolled Hypertension: If blood pressure is already dangerously high, the stimulant effects of cocaine could trigger a stroke.
• History of Substance Use Disorder: Due to the high potential for addiction and the risk of triggering a relapse, alternative anesthetics (like lidocaine) are preferred.
• Pseudocholinesterase Deficiency: Patients known to have this genetic trait should avoid cocaine as they cannot metabolize it, leading to a high risk of systemic toxicity.
• Hyperthyroidism: The pre-existing high metabolic state makes these patients extremely vulnerable to cocaine-induced tachycardia.

Patients who are allergic to one ester-type anesthetic are frequently allergic to others in the same class. This is often due to the production of para-aminobenzoic acid (PABA) during the metabolism of these drugs. However, there is generally no cross-sensitivity between ester-type anesthetics (like cocaine) and amide-type anesthetics (like lidocaine or bupivacaine). Therefore, lidocaine is usually a safe alternative for patients with an ester allergy.

> Important: Your healthcare provider will evaluate your complete medical history, including any past reactions to numbing agents, before prescribing or using Cocaine.

Cocaine hydrochloride is classified as FDA Pregnancy Category C (under the old system) and carries significant risks under current labeling. There are no adequate and well-controlled studies in pregnant women. However, cocaine is a known potent vasoconstrictor that can significantly reduce uterine blood flow, potentially leading to fetal hypoxia (lack of oxygen).

• Teratogenicity: Illicit use of cocaine during pregnancy is associated with increased risks of placental abruption (the placenta detaching from the womb), premature birth, low birth weight, and potential developmental delays. While a single clinical dose is different from chronic abuse, the risk of uterine artery vasoconstriction remains a serious concern.
• Labor and Delivery: Use during labor can cause maternal hypertension and fetal distress.

Cocaine is known to pass into human breast milk. Due to the drug's high potency and the sensitivity of an infant's developing nervous and cardiovascular systems, breastfeeding is not recommended following the administration of cocaine. If a nursing mother receives cocaine for a procedure, she should 'pump and dump' her breast milk for at least 48 to 72 hours to ensure the drug and its metabolites have been cleared from her system.

As previously noted, cocaine hydrochloride is not approved for use in children under 18 years of age. The risk of systemic toxicity, seizures, and cardiovascular collapse is significantly higher in pediatric populations. Clinical trials for modern formulations like Goprelto and Numbrino were conducted exclusively in adults.

In clinical trials, elderly patients (65 years and older) did not show overall differences in safety or effectiveness compared to younger adults. However, because older adults are more likely to have underlying heart disease, reduced kidney function, or be taking multiple other medications (polypharmacy), they should be treated with the lowest effective dose. Monitoring of blood pressure and heart rhythm is particularly critical in this population to prevent falls or cardiac events.

While the primary metabolism of cocaine occurs in the blood via esterases, the metabolites are cleared by the kidneys. In patients with severe renal impairment or end-stage renal disease (ESRD), these metabolites can accumulate. While the metabolites are mostly inactive, their accumulation may have unknown effects. No specific dose adjustment is required, but clinical monitoring is advised.

Since a portion of cocaine metabolism occurs via hepatic esterases and the CYP3A4 system, patients with severe liver disease (Child-Pugh Class C) may experience slower clearance of the drug. This increases the risk of systemic toxicity. Healthcare providers should exercise caution and consider alternative anesthetics if the liver impairment is severe.

> Important: Special populations require individualized medical assessment. Always inform your doctor if you are pregnant, planning to become pregnant, or breastfeeding.

Cocaine hydrochloride is a unique pharmacological agent that serves two primary functions: local anesthesia and vasoconstriction.

1. 1Local Anesthesia: Cocaine binds to the intracellular portion of voltage-gated sodium channels in neuronal membranes. By stabilizing the channel in the inactive state, it prevents the rapid influx of sodium ions required for depolarization. This stops the conduction of nerve impulses, effectively blocking the sensation of pain in the area where the drug is applied.
2. 2Vasoconstriction: Unlike most other local anesthetics (which are vasodilators), cocaine inhibits the reuptake of norepinephrine into the presynaptic nerve terminals. This increases the concentration of norepinephrine in the synaptic cleft, leading to sustained stimulation of alpha-adrenergic receptors on the smooth muscle of blood vessels. This results in significant narrowing of the vessels (vasoconstriction).

• Onset of Action: Topical anesthesia of the nasal mucosa typically occurs within 1 to 5 minutes of application.
• Peak Effect: The maximum anesthetic and vasoconstrictive effect is usually reached within 10 to 20 minutes.
• Duration: The effects generally last for 30 to 60 minutes, though this can vary based on the dose and the patient's individual metabolism.
• Tolerance: While tolerance to the euphoric effects of cocaine develops rapidly with chronic use, tolerance to the local anesthetic effect is not typically observed in a clinical setting.

| Parameter | Value |

|---|---|

| Bioavailability | 30% - 60% (Topical Nasal) |

| Protein Binding | ~90% (Alpha-1-acid glycoprotein) |

| Half-life | 0.7 - 1.5 hours |

| Tmax | 30 - 60 minutes |

| Metabolism | Plasma Pseudocholinesterase & Hepatic Esterases |

| Excretion | Renal (90-95% as metabolites) |

• Molecular Formula: C17H21NO4·HCl
• Molecular Weight: 339.81 g/mol
• Solubility: Highly soluble in water (approx. 2000 mg/mL) and soluble in alcohol.
• Structure: Cocaine is a tropane alkaloid. Its structure consists of a hydrophilic amine and a hydrophobic aromatic group connected by an ester intermediate chain, which defines its classification as an ester-type anesthetic.

Cocaine is classified as an Ester-type Local Anesthetic. It is the parent compound from which many synthetic anesthetics were derived. Related medications include procaine (Novocain), tetracaine, and benzocaine. It is also classified as a CNS Stimulant and a Schedule II Controlled Substance.