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Toxicology – Synthetic Cannabinoids (“Spice,” “K2”)
Source
Synthetic cannabinoids are laboratory-made compounds sprayed onto plant material and sold as “herbal incense” or “smoking blends.” These products are often marketed in colorful packaging and labeled “not for human consumption,” despite being used recreationally.
Typical Presentation
Users may develop symptoms shortly after smoking these substances. A common presentation includes sudden onset of anxiety, paranoia, and altered perception, sometimes progressing to severe psychological distress.
Clinical Features
While some effects resemble natural cannabis, synthetic cannabinoids are more likely to cause severe neuropsychiatric symptoms such as intense anxiety, paranoia, hallucinations, delusions, and psychosis. Other findings may include tachycardia, agitation, and confusion. Serious complications such as seizures, myocardial infarction, acute kidney injury, and self-harm have been reported.
Mechanism of Action
These compounds act on cannabinoid receptors (CB1 and CB2), similar to THC. However, their potency, receptor affinity, and concentration vary widely, leading to unpredictable and often more severe effects compared to natural cannabis.
Management
Treatment is supportive. Benzodiazepines are commonly used to manage agitation, anxiety, tachycardia, and hallucinations.
Key Points
Source
Synthetic cannabinoids are laboratory-made compounds sprayed onto plant material and sold as “herbal incense” or “smoking blends.” These products are often marketed in colorful packaging and labeled “not for human consumption,” despite being used recreationally.
Typical Presentation
Users may develop symptoms shortly after smoking these substances. A common presentation includes sudden onset of anxiety, paranoia, and altered perception, sometimes progressing to severe psychological distress.
Clinical Features
While some effects resemble natural cannabis, synthetic cannabinoids are more likely to cause severe neuropsychiatric symptoms such as intense anxiety, paranoia, hallucinations, delusions, and psychosis. Other findings may include tachycardia, agitation, and confusion. Serious complications such as seizures, myocardial infarction, acute kidney injury, and self-harm have been reported.
Mechanism of Action
These compounds act on cannabinoid receptors (CB1 and CB2), similar to THC. However, their potency, receptor affinity, and concentration vary widely, leading to unpredictable and often more severe effects compared to natural cannabis.
Management
Treatment is supportive. Benzodiazepines are commonly used to manage agitation, anxiety, tachycardia, and hallucinations.
Key Points
- Synthetic cannabinoids are typically not detected on standard drug screening tests.
- Numerous compounds exist, including JWH-018, JWH-073, CP-47,497, HU-210, and cannabicyclohexanol, contributing to variable toxicity profiles.
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Toxicology – Gamma-Hydroxybutyrate (GHB) Toxicity
Source
GHB is a synthetically produced compound available as a powder or dissolved liquid. Related substances such as gamma-butyrolactone (GBL) act as prodrugs and are converted into GHB in the body.
Typical Presentation
Exposure often occurs in social settings. Individuals may suddenly lose consciousness after ingestion, with rapid recovery hours later and little to no memory of events.
Clinical Features
At lower doses, GHB produces euphoria, disinhibition, and sedative effects. Higher doses can lead to central nervous system depression, amnesia, and coma. Additional findings may include bradycardia, hypotension, hypothermia, respiratory depression, seizures, and myoclonus. Coingestion with alcohol significantly increases the risk of severe toxicity and respiratory arrest. A characteristic feature is abrupt awakening after several hours due to a rebound effect.
Mechanism of Action
GHB is structurally related to GABA and readily crosses the blood–brain barrier. It acts on specific GHB receptors and, at higher concentrations, also stimulates GABA receptors. These effects increase dopamine release initially and then suppress neuronal activity, leading to sedation and coma. A rebound increase in dopamine may occur several hours after ingestion, explaining sudden recovery.
Management
Treatment is supportive, with early attention to airway protection and ventilation. There is no specific antidote. Agitated patients may require sedation, and benzodiazepines are used for seizure control.
Key Points
103
Source
GHB is a synthetically produced compound available as a powder or dissolved liquid. Related substances such as gamma-butyrolactone (GBL) act as prodrugs and are converted into GHB in the body.
Typical Presentation
Exposure often occurs in social settings. Individuals may suddenly lose consciousness after ingestion, with rapid recovery hours later and little to no memory of events.
Clinical Features
At lower doses, GHB produces euphoria, disinhibition, and sedative effects. Higher doses can lead to central nervous system depression, amnesia, and coma. Additional findings may include bradycardia, hypotension, hypothermia, respiratory depression, seizures, and myoclonus. Coingestion with alcohol significantly increases the risk of severe toxicity and respiratory arrest. A characteristic feature is abrupt awakening after several hours due to a rebound effect.
Mechanism of Action
GHB is structurally related to GABA and readily crosses the blood–brain barrier. It acts on specific GHB receptors and, at higher concentrations, also stimulates GABA receptors. These effects increase dopamine release initially and then suppress neuronal activity, leading to sedation and coma. A rebound increase in dopamine may occur several hours after ingestion, explaining sudden recovery.
Management
Treatment is supportive, with early attention to airway protection and ventilation. There is no specific antidote. Agitated patients may require sedation, and benzodiazepines are used for seizure control.
Key Points
- GHB has a characteristic salty taste when mixed in beverages.
- It is available medically in some settings for treatment of narcolepsy with cataplexy.
- Certain products have historically contained GHB or its precursors, leading to accidental poisonings.
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Toxicology – Phencyclidine (PCP) Toxicity
Source
Phencyclidine (PCP) is a synthetically produced drug derived from cyclohexanone and piperidine. It is often applied to plant material such as marijuana, mint, or parsley and then smoked. It is known by various street names including “Sherm,” “Wet,” and “Fry.”
Typical Presentation
Patients may present with fluctuating levels of consciousness. A common pattern includes sudden awakening from an unresponsive state followed by extreme agitation, aggression, and attempts to escape or fight.
Clinical Features
Symptoms range from deep sedation or coma to severe agitation and psychosis. Individuals may exhibit unpredictable behavior, including violent outbursts and reduced sensitivity to pain. Physical findings often include nystagmus, hypertension, tachycardia, and seizures. Rapid shifts between sedation and agitation are characteristic.
Mechanism of Action
PCP is a lipophilic dissociative anesthetic that primarily blocks NMDA receptors in the brain. It also has mild effects on catecholamine reuptake, contributing to its stimulant and psychotropic effects.
Management
Treatment is supportive. Benzodiazepines are used to control agitation and anxiety. In cases of severe agitation or danger to others, physical or chemical restraints may be necessary.
Key Points
Source
Phencyclidine (PCP) is a synthetically produced drug derived from cyclohexanone and piperidine. It is often applied to plant material such as marijuana, mint, or parsley and then smoked. It is known by various street names including “Sherm,” “Wet,” and “Fry.”
Typical Presentation
Patients may present with fluctuating levels of consciousness. A common pattern includes sudden awakening from an unresponsive state followed by extreme agitation, aggression, and attempts to escape or fight.
Clinical Features
Symptoms range from deep sedation or coma to severe agitation and psychosis. Individuals may exhibit unpredictable behavior, including violent outbursts and reduced sensitivity to pain. Physical findings often include nystagmus, hypertension, tachycardia, and seizures. Rapid shifts between sedation and agitation are characteristic.
Mechanism of Action
PCP is a lipophilic dissociative anesthetic that primarily blocks NMDA receptors in the brain. It also has mild effects on catecholamine reuptake, contributing to its stimulant and psychotropic effects.
Management
Treatment is supportive. Benzodiazepines are used to control agitation and anxiety. In cases of severe agitation or danger to others, physical or chemical restraints may be necessary.
Key Points
- PCP intoxication often presents with alternating states of sedation and agitation.
- Patients may exhibit significant strength and decreased pain perception, making management challenging.
- A useful mnemonic for features includes “RED DANES”: rage, erythema, dilated pupils, delusions, amnesia, nystagmus, excitation, and skin dryness.
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Toxicology – Kratom Toxicity
Source
Kratom is derived from the leaves of the Mitragyna speciosa tree native to Southeast Asia. It is commonly sold as a powdered product in shops and online, often used in teas or capsules.
Typical Presentation
Use may produce stimulant-like effects at lower doses and opioid-like effects at higher doses. Users may report increased energy initially, followed by more sedative effects with larger amounts.
Clinical Features
At low doses, kratom can cause mild stimulation and euphoria. At higher doses, effects resemble opioids and include pinpoint pupils (miosis), nausea, vomiting, decreased appetite, headache, and mild respiratory depression. Chronic use may lead to dependence, and withdrawal symptoms can occur after cessation.
Mechanism of Action
Kratom contains active alkaloids, primarily mitragynine and 7-hydroxymitragynine, which act on opioid receptors. Mitragynine also has some activity at alpha-adrenergic receptors, contributing to stimulant effects at lower doses. Compared to traditional opioids, its respiratory depressant effects are generally less pronounced.
Management
Treatment is supportive. In cases of significant opioid-like toxicity, naloxone may be considered, although its effectiveness may vary.
Key Points
Source
Kratom is derived from the leaves of the Mitragyna speciosa tree native to Southeast Asia. It is commonly sold as a powdered product in shops and online, often used in teas or capsules.
Typical Presentation
Use may produce stimulant-like effects at lower doses and opioid-like effects at higher doses. Users may report increased energy initially, followed by more sedative effects with larger amounts.
Clinical Features
At low doses, kratom can cause mild stimulation and euphoria. At higher doses, effects resemble opioids and include pinpoint pupils (miosis), nausea, vomiting, decreased appetite, headache, and mild respiratory depression. Chronic use may lead to dependence, and withdrawal symptoms can occur after cessation.
Mechanism of Action
Kratom contains active alkaloids, primarily mitragynine and 7-hydroxymitragynine, which act on opioid receptors. Mitragynine also has some activity at alpha-adrenergic receptors, contributing to stimulant effects at lower doses. Compared to traditional opioids, its respiratory depressant effects are generally less pronounced.
Management
Treatment is supportive. In cases of significant opioid-like toxicity, naloxone may be considered, although its effectiveness may vary.
Key Points
- Kratom has both stimulant and opioid-like properties depending on dose.
- It is sometimes used by individuals attempting to reduce opioid dependence.
- Severe toxicity and fatalities are uncommon and often involve coingestants or adulterants.
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Toxicology – Salvia (Salvia divinorum)
Source
Salvia divinorum is a plant from the mint family native to Oaxaca, Mexico. Its leaves or concentrated extracts are commonly sold online or in specialty shops and are typically smoked to produce psychoactive effects.
Typical Presentation
Users often experience a rapid onset of intense but short-lived hallucinations after smoking. During intoxication, individuals may appear disconnected from reality, mumbling, or reacting to internal stimuli. Upon recovery, they may describe vivid, unusual experiences or feelings of entering alternate realities.
Clinical Features
Effects are brief, usually lasting only a few minutes. Common features include visual and tactile hallucinations, dissociation, inappropriate laughter, altered perception of reality, and unusual sensations such as merging with objects or changes in body form. Some individuals experience distress or fear during recovery, similar to an emergence reaction seen with dissociative anesthetics.
Mechanism of Action
The active compound, salvinorin A, is a potent and selective kappa-opioid receptor agonist. Unlike traditional opioids, it does not significantly depress respiration.
Management
Treatment is supportive. Because symptoms are short-lived, most cases resolve without medical intervention. Reassurance is usually sufficient for individuals experiencing anxiety or a “bad trip.”
Key Points
Source
Salvia divinorum is a plant from the mint family native to Oaxaca, Mexico. Its leaves or concentrated extracts are commonly sold online or in specialty shops and are typically smoked to produce psychoactive effects.
Typical Presentation
Users often experience a rapid onset of intense but short-lived hallucinations after smoking. During intoxication, individuals may appear disconnected from reality, mumbling, or reacting to internal stimuli. Upon recovery, they may describe vivid, unusual experiences or feelings of entering alternate realities.
Clinical Features
Effects are brief, usually lasting only a few minutes. Common features include visual and tactile hallucinations, dissociation, inappropriate laughter, altered perception of reality, and unusual sensations such as merging with objects or changes in body form. Some individuals experience distress or fear during recovery, similar to an emergence reaction seen with dissociative anesthetics.
Mechanism of Action
The active compound, salvinorin A, is a potent and selective kappa-opioid receptor agonist. Unlike traditional opioids, it does not significantly depress respiration.
Management
Treatment is supportive. Because symptoms are short-lived, most cases resolve without medical intervention. Reassurance is usually sufficient for individuals experiencing anxiety or a “bad trip.”
Key Points
- Effects are rapid in onset and short in duration compared to many other hallucinogens.
- The substance is often smoked using specialized equipment due to its high vaporization temperature.
- Oral ingestion is generally ineffective because the active compound is inactivated in the gastrointestinal tract.
- Many users report the experience as unpleasant and do not continue use.
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Toxicology – Black Widow Spider (Latrodectus) Envenomation
Source
Black widow spiders are found throughout the United States, especially in warmer southern regions. Only female spiders bite humans. They are typically identified by markings on the abdomen—most commonly a red hourglass on the underside. These spiders tend to inhabit dark, undisturbed areas such as woodpiles, garages, and sheds.
Typical Presentation
Patients often present after a painful spider bite followed by progressive muscle pain and systemic symptoms. In children, symptoms may be severe and mimic other acute conditions such as abdominal emergencies.
Clinical Features
The bite initially causes localized pain, followed by redness and sweating at the site. Systemic symptoms may include muscle cramps and fasciculations, severe abdominal pain and rigidity, nausea, vomiting, weakness, headache, dizziness, chest pain, and elevated blood pressure. In some cases, unusual findings such as priapism may occur. Symptoms tend to be more severe in children and older adults.
Mechanism of Action
The venom contains alpha-latrotoxin, a potent neurotoxin that triggers massive release of neurotransmitters by opening presynaptic calcium channels. This results in widespread neuromuscular and autonomic stimulation.
Management
Treatment is primarily supportive, focusing on pain control and symptom management. Muscle relaxants may be used for cramping. Intravenous calcium has been used in some cases, though benefits are variable. Antivenom may be considered in severe cases, particularly in high-risk patients or those with significant systemic symptoms.
Key Points
Source
Black widow spiders are found throughout the United States, especially in warmer southern regions. Only female spiders bite humans. They are typically identified by markings on the abdomen—most commonly a red hourglass on the underside. These spiders tend to inhabit dark, undisturbed areas such as woodpiles, garages, and sheds.
Typical Presentation
Patients often present after a painful spider bite followed by progressive muscle pain and systemic symptoms. In children, symptoms may be severe and mimic other acute conditions such as abdominal emergencies.
Clinical Features
The bite initially causes localized pain, followed by redness and sweating at the site. Systemic symptoms may include muscle cramps and fasciculations, severe abdominal pain and rigidity, nausea, vomiting, weakness, headache, dizziness, chest pain, and elevated blood pressure. In some cases, unusual findings such as priapism may occur. Symptoms tend to be more severe in children and older adults.
Mechanism of Action
The venom contains alpha-latrotoxin, a potent neurotoxin that triggers massive release of neurotransmitters by opening presynaptic calcium channels. This results in widespread neuromuscular and autonomic stimulation.
Management
Treatment is primarily supportive, focusing on pain control and symptom management. Muscle relaxants may be used for cramping. Intravenous calcium has been used in some cases, though benefits are variable. Antivenom may be considered in severe cases, particularly in high-risk patients or those with significant systemic symptoms.
Key Points
- Symptoms may mimic conditions such as acute abdomen or cardiac ischemia.
- Severe complications can include hypertensive crises and respiratory compromise.
- Early recognition and supportive care are essential for good outcomes.
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Toxicology – Elapid Snake Envenomation
Source
Elapid snakes are found primarily in tropical and subtropical regions worldwide. They possess fixed, hollow fangs used to deliver venom. This group includes coral snakes, cobras, mambas, taipans, adders, and certain sea snakes.
Typical Presentation
A patient may present after a bite from a brightly colored or unfamiliar snake, initially with mild local symptoms but progressing to neurological changes. Early complaints may include tingling or numbness at the bite site.
Clinical Features
Local findings are often less severe than with pit viper bites and may include mild pain, paresthesia, and minimal swelling. Systemic effects are more prominent and include nausea, vomiting, altered mental status, difficulty swallowing, double vision, drooping eyelids (ptosis), muscle twitching, excessive salivation, jaw stiffness, hypotension, tachycardia, and potentially respiratory failure due to paralysis.
Mechanism of Action
Elapid venom is primarily neurotoxic. It interferes with neuromuscular transmission by blocking postsynaptic acetylcholine receptors, particularly at nicotinic receptors in skeletal muscle. This can lead to progressive paralysis, including involvement of the diaphragm and respiratory muscles.
Management
Treatment is mainly supportive, with close monitoring of airway and respiratory function. Early intubation and mechanical ventilation should be considered if there are signs of respiratory compromise. Consultation with poison control or toxicology specialists is essential to determine availability of appropriate antivenom (such as coral snake antivenin, where applicable).
Key Points
- Elapid bites often cause minimal local injury but significant systemic neurotoxicity.
- Respiratory failure is the most serious complication and requires prompt recognition.
- Some species require prolonged contact (e.g., coral snakes) to effectively deliver venom.
- Identification rules based on color patterns apply only in specific geographic regions and should be used cautiously.
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Toxicology – Scorpion Envenomation
Source
Venomous scorpions are found in various regions worldwide. In North America, the bark scorpion is the most clinically significant species, commonly found in the southwestern United States and Mexico. Other dangerous species exist in parts of Africa, India, and the Middle East.
Typical Presentation
Patients typically present after a sudden, painful sting. In more severe cases, symptoms may rapidly progress to systemic toxicity, especially in vulnerable individuals such as children or the elderly.
Clinical Features
Most stings in North America cause localized pain, redness, and swelling. More severe envenomations may produce systemic symptoms including tachycardia, abnormal heart rhythms, elevated blood pressure, hyperthermia, excessive sweating, drooling, dilated pupils, abnormal eye movements (nystagmus), muscle twitching, clonus, and respiratory distress. Severe cases may also be associated with complications such as pancreatitis or coagulopathy.
Mechanism of Action
Scorpion venom contains a combination of neurotoxic and cytotoxic components. It affects ion channels, particularly by activating sodium channels and inhibiting potassium channels, leading to prolonged nerve and muscle excitation and autonomic instability.
Management
Treatment is primarily supportive. Pain is managed with analgesics, often including opioids. Benzodiazepines are used for muscle spasms and agitation. In cases of significant systemic toxicity, antivenom (such as Centruroides-specific antivenom) may be administered when available.
Key Points
Source
Venomous scorpions are found in various regions worldwide. In North America, the bark scorpion is the most clinically significant species, commonly found in the southwestern United States and Mexico. Other dangerous species exist in parts of Africa, India, and the Middle East.
Typical Presentation
Patients typically present after a sudden, painful sting. In more severe cases, symptoms may rapidly progress to systemic toxicity, especially in vulnerable individuals such as children or the elderly.
Clinical Features
Most stings in North America cause localized pain, redness, and swelling. More severe envenomations may produce systemic symptoms including tachycardia, abnormal heart rhythms, elevated blood pressure, hyperthermia, excessive sweating, drooling, dilated pupils, abnormal eye movements (nystagmus), muscle twitching, clonus, and respiratory distress. Severe cases may also be associated with complications such as pancreatitis or coagulopathy.
Mechanism of Action
Scorpion venom contains a combination of neurotoxic and cytotoxic components. It affects ion channels, particularly by activating sodium channels and inhibiting potassium channels, leading to prolonged nerve and muscle excitation and autonomic instability.
Management
Treatment is primarily supportive. Pain is managed with analgesics, often including opioids. Benzodiazepines are used for muscle spasms and agitation. In cases of significant systemic toxicity, antivenom (such as Centruroides-specific antivenom) may be administered when available.
Key Points
- Scorpions fluoresce under ultraviolet (Wood’s lamp) light, aiding identification.
- Severe toxicity is more likely in children and older adults.
- Antivenom should be considered in patients with systemic symptoms.
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Toxicology – Nitrates and Nitrites
Source
Nitrates such as nitroglycerin and isosorbide dinitrate are commonly used in the treatment of coronary artery disease due to their vasodilatory effects. Nitrites, including amyl, butyl, and isobutyl nitrite, are often misused recreationally as inhalants and may be marketed under misleading labels such as “poppers,” cleaners, or deodorizers.
Typical Presentation
Individuals may present after inhaling these substances recreationally, often experiencing rapid onset of flushing, headache, and palpitations shortly after exposure.
Clinical Features
Common findings include headache, facial flushing, tachycardia, and hypotension due to vasodilation. In some cases, especially with nitrite exposure, methemoglobinemia may develop, leading to reduced oxygen delivery, cyanosis, and symptoms of hypoxia.
Mechanism of Action
Both nitrates and nitrites act as potent vasodilators, causing relaxation of vascular smooth muscle and resulting in decreased blood pressure with compensatory increase in heart rate. They can also oxidize hemoglobin to methemoglobin, impairing oxygen transport—this effect is more pronounced with nitrites.
Management
Treatment includes removal from exposure and supportive care. Intravenous fluids may be used for hypotension. In cases of methemoglobinemia, methylene blue (1–2 mg/kg IV) is the treatment of choice.
Key Points
Source
Nitrates such as nitroglycerin and isosorbide dinitrate are commonly used in the treatment of coronary artery disease due to their vasodilatory effects. Nitrites, including amyl, butyl, and isobutyl nitrite, are often misused recreationally as inhalants and may be marketed under misleading labels such as “poppers,” cleaners, or deodorizers.
Typical Presentation
Individuals may present after inhaling these substances recreationally, often experiencing rapid onset of flushing, headache, and palpitations shortly after exposure.
Clinical Features
Common findings include headache, facial flushing, tachycardia, and hypotension due to vasodilation. In some cases, especially with nitrite exposure, methemoglobinemia may develop, leading to reduced oxygen delivery, cyanosis, and symptoms of hypoxia.
Mechanism of Action
Both nitrates and nitrites act as potent vasodilators, causing relaxation of vascular smooth muscle and resulting in decreased blood pressure with compensatory increase in heart rate. They can also oxidize hemoglobin to methemoglobin, impairing oxygen transport—this effect is more pronounced with nitrites.
Management
Treatment includes removal from exposure and supportive care. Intravenous fluids may be used for hypotension. In cases of methemoglobinemia, methylene blue (1–2 mg/kg IV) is the treatment of choice.
Key Points
- Nitrites are more likely than nitrates to cause methemoglobinemia.
- These substances are sometimes misused for their short-lived vasodilatory and sensory effects
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Toxicology – Black Widow Spider (Latrodectus) Envenomation
Source
Black widow spiders are found throughout the United States, especially in warmer southern regions. Only female spiders bite humans. They are typically identified by markings on the abdomen—most commonly a red hourglass on the underside. These spiders tend to inhabit dark, undisturbed areas such as woodpiles, garages, and sheds.
Typical Presentation
Patients often present after a painful spider bite followed by progressive muscle pain and systemic symptoms. In children, symptoms may be severe and mimic other acute conditions such as abdominal emergencies.
Clinical Features
The bite initially causes localized pain, followed by redness and sweating at the site. Systemic symptoms may include muscle cramps and fasciculations, severe abdominal pain and rigidity, nausea, vomiting, weakness, headache, dizziness, chest pain, and elevated blood pressure. In some cases, unusual findings such as priapism may occur. Symptoms tend to be more severe in children and older adults.
Mechanism of Action
The venom contains alpha-latrotoxin, a potent neurotoxin that triggers massive release of neurotransmitters by opening presynaptic calcium channels. This results in widespread neuromuscular and autonomic stimulation.
Management
Treatment is primarily supportive, focusing on pain control and symptom management. Muscle relaxants may be used for cramping. Intravenous calcium has been used in some cases, though benefits are variable. Antivenom may be considered in severe cases, particularly in high-risk patients or those with significant systemic symptoms.
Key Points
Source
Black widow spiders are found throughout the United States, especially in warmer southern regions. Only female spiders bite humans. They are typically identified by markings on the abdomen—most commonly a red hourglass on the underside. These spiders tend to inhabit dark, undisturbed areas such as woodpiles, garages, and sheds.
Typical Presentation
Patients often present after a painful spider bite followed by progressive muscle pain and systemic symptoms. In children, symptoms may be severe and mimic other acute conditions such as abdominal emergencies.
Clinical Features
The bite initially causes localized pain, followed by redness and sweating at the site. Systemic symptoms may include muscle cramps and fasciculations, severe abdominal pain and rigidity, nausea, vomiting, weakness, headache, dizziness, chest pain, and elevated blood pressure. In some cases, unusual findings such as priapism may occur. Symptoms tend to be more severe in children and older adults.
Mechanism of Action
The venom contains alpha-latrotoxin, a potent neurotoxin that triggers massive release of neurotransmitters by opening presynaptic calcium channels. This results in widespread neuromuscular and autonomic stimulation.
Management
Treatment is primarily supportive, focusing on pain control and symptom management. Muscle relaxants may be used for cramping. Intravenous calcium has been used in some cases, though benefits are variable. Antivenom may be considered in severe cases, particularly in high-risk patients or those with significant systemic symptoms.
Key Points
- Symptoms may mimic conditions such as acute abdomen or cardiac ischemia.
- Severe complications can include hypertensive crises and respiratory compromise.
- Early recognition and supportive care are essential for good outcomes.
