Poppy seed defence

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A poppy seed bagel may be used as part of the poppy seed defence. Bagel with poppy seed.jpg
A poppy seed bagel may be used as part of the poppy seed defence.

The poppy seed defence is a commonly cited reason to avoid any sanction for failing a drug test. The defence asserts that a suspect's positive result was a result of the person having consumed poppy seeds prior to taking the test. It has been recognised in medical and legal fields as a valid defence. [1]

Contents

Medical basis

The poppy seed effect has long been recognised in the medical profession. Poppy seeds from the opium poppy have been used to make heroin and even after going through treatment for consumption, opiate alkaloids and traces of morphine can seep into the food. [2] In the United States before 1998, 300 nanograms of opiate per millilitre (ng/ml) was sufficient to fail a drug test. However, due to the recognition of the poppy seed defence, the United States Department of Health and Human Services raised the threshold concentration to 2,000 ng/ml (equivalent to three poppy seed bagels) to reduce the possibility of a false positive. [3] However, some hospitals still use the old standards. [3] As a result, false positives can lead to legal actions. [4] It has also been cited as a reason for urinary drug testing to be considered unreliable. [5] It has been advised by medical scientists that data received from drug testing should be carefully examined as a result of the effect. [6]

Some scientists have been working on ways in which to counter the poppy seed defence. In 2014, researchers from King's College London claimed that the presence of a glucuronide metabolite called ATM4G, which is present in heroin but not in poppy seeds, can determine whether a positive test was a result of drug or poppy seed consumption. [7]

Use of the defence

In 2011, a New Zealand triathlete avoided a doping ban after testing positive for opiates after having consumed poppy seeds before an event. [8] In 2020, a woman in Alabama, United States lost custody of her newborn baby because doctors found traces of opiate in her urine. This was later attributed to poppy-seed bread she had eaten and the baby was returned. [9]

The defence has also been recognised in equestrianism. In 2013, the racehorse Estimate, owned by Queen Elizabeth II, failed a drug test that was attributed to contaminated feed in the stables, which contained poppy seeds. [10] [11] The horse's trainer faced no sanction as a result of the poppy seed defence. [12] Two years later, the International Federation for Equestrian Sports formally recognised the "poppy seed defence" for riders of horses found to have consumed feed contaminated with poppy seeds. [13]

Related Research Articles

<span class="mw-page-title-main">Heroin</span> Opioid used as a recreational drug for its euphoric effects

Heroin, also known as diacetylmorphine and diamorphine among other names, is a morphinan opioid substance derived from the dried latex of the Papaver somniferum plant and is mainly used as a recreational drug for its euphoric effects. Medical-grade diamorphine is used as a pure hydrochloride salt. Various white and brown powders sold illegally around the world as heroin are routinely diluted with cutting agents. Black tar heroin is a variable admixture of morphine derivatives—predominantly 6-MAM (6-monoacetylmorphine), which is the result of crude acetylation during clandestine production of street heroin. Heroin is used medically in several countries to relieve pain, such as during childbirth or a heart attack, as well as in opioid replacement therapy.

<span class="mw-page-title-main">Morphine</span> Pain medication of the opiate family

Morphine is a strong opiate that is found naturally in opium, a dark brown resin produced by drying the latex of opium poppies. It is mainly used as a pain medication, and is also commonly used recreationally, or to make other illicit opioids. There are numerous methods used to administer morphine: oral; sublingual; via inhalation; injection into a muscle, injection under the skin, or injection into the spinal cord area; transdermal; or via rectal suppository. It acts directly on the central nervous system (CNS) to induce analgesia and alter perception and emotional response to pain. Physical and psychological dependence and tolerance may develop with repeated administration. It can be taken for both acute pain and chronic pain and is frequently used for pain from myocardial infarction, kidney stones, and during labor. Its maximum effect is reached after about 20 minutes when administered intravenously and 60 minutes when administered by mouth, while the duration of its effect is 3–7 hours. Long-acting formulations of morphine are available as MS-Contin, Kadian, and other brand names as well as generically.

<span class="mw-page-title-main">Opium</span> Dried latex obtained from the opium poppy

Opium is dried latex obtained from the seed capsules of the opium poppy Papaver somniferum. Approximately 12 percent of opium is made up of the analgesic alkaloid morphine, which is processed chemically to produce heroin and other synthetic opioids for medicinal use and for the illegal drug trade. The latex also contains the closely related opiates codeine and thebaine, and non-analgesic alkaloids such as papaverine and noscapine. The traditional, labor-intensive method of obtaining the latex is to scratch ("score") the immature seed pods (fruits) by hand; the latex leaks out and dries to a sticky yellowish residue that is later scraped off and dehydrated. The word meconium historically referred to related, weaker preparations made from other parts of the opium poppy or different species of poppies.

<span class="mw-page-title-main">Thebaine</span> Chemical compound

Thebaine (paramorphine), also known as codeine methyl enol ether, is an opiate alkaloid, its name coming from the Greek Θῆβαι, Thēbai (Thebes), an ancient city in Upper Egypt. A minor constituent of opium, thebaine is chemically similar to both morphine and codeine, but has stimulatory rather than depressant effects. At high doses, it causes convulsions similar to strychnine poisoning. The synthetic enantiomer (+)-thebaine does show analgesic effects apparently mediated through opioid receptors, unlike the inactive natural enantiomer (−)-thebaine. While thebaine is not used therapeutically, it is the main alkaloid extracted from Papaver bracteatum and can be converted industrially into a variety of compounds, including hydrocodone, hydromorphone, oxycodone, oxymorphone, nalbuphine, naloxone, naltrexone, buprenorphine, butorphanol and etorphine.

<span class="mw-page-title-main">Narcotic</span> Chemical substance with psycho-active properties

The term narcotic originally referred medically to any psychoactive compound with numbing or paralyzing properties. In the United States, it has since become associated with opiates and opioids, commonly morphine and heroin, as well as derivatives of many of the compounds found within raw opium latex. The primary three are morphine, codeine, and thebaine.

<span class="mw-page-title-main">Laudanum</span> Tincture of opium

Laudanum is a tincture of opium containing approximately 10% powdered opium by weight. Laudanum is prepared by dissolving extracts from the opium poppy in alcohol (ethanol).

<span class="mw-page-title-main">Poppy</span> Species of flowering plant in the family Papaveraceae

A poppy is a flowering plant in the subfamily Papaveroideae of the family Papaveraceae. Poppies are herbaceous plants, often grown for their colourful flowers. One species of poppy, Papaver somniferum, is the source of the narcotic drug mixture opium which contains powerful medicinal alkaloids such as morphine and has been used since ancient times as an analgesic and narcotic medicinal and recreational drug. It also produces edible seeds. Following the trench warfare in the poppy fields of Flanders, Belgium during World War I, poppies have become a symbol of remembrance of soldiers who have died during wartime, especially in the UK, Canada, Australia, New Zealand and other Commonwealth realms.

<span class="mw-page-title-main">Opioid</span> Psychoactive chemical

Opioids are substances that act on opioid receptors to produce morphine-like effects. Medically they are primarily used for pain relief, including anesthesia. Other medical uses include suppression of diarrhea, replacement therapy for opioid use disorder, reversing opioid overdose, and suppressing cough. Extremely potent opioids such as carfentanil are approved only for veterinary use. Opioids are also frequently used non-medically for their euphoric effects or to prevent withdrawal. Opioids can cause death and have been used for executions in the United States.

<i>Papaver somniferum</i> Species of flowering plant in the family Papaveraceae

Papaver somniferum, commonly known as the opium poppy or breadseed poppy, is a species of flowering plant in the family Papaveraceae. It is the species of plant from which both opium and poppy seeds are derived and is also a valuable ornamental plant grown in gardens. Its native range was east of the Mediterranean Sea, but now is obscured by ancient introductions and cultivation, being naturalized across much of Europe and Asia.

<span class="mw-page-title-main">Clenbuterol</span> Chemical compound which aids breathing

Clenbuterol is a sympathomimetic amine used by sufferers of breathing disorders as a decongestant and bronchodilator. People with chronic breathing disorders such as asthma use this as a bronchodilator to make breathing easier. It is most commonly available as the hydrochloride salt, clenbuterol hydrochloride.

<span class="mw-page-title-main">Poppy tea</span> Herbal tea made out of poppy straw or poppy seeds

Poppy tea is an herbal tea infusion brewed from poppy straw or seeds of several species of poppy. The species most commonly used for this purpose is Papaver somniferum, which produces opium as a natural defense against predators. In the live flower, opium is released when the surface of the bulb, called the seed pod, is pierced or scraped. For the purpose of the tea, dried pods are more commonly used than the pods of the live flower. The walls of the dried pods contain opiate alkaloids, primarily consisting of morphine.

<span class="mw-page-title-main">Opium production in Afghanistan</span> Overview of illicit drug production in Afghanistan

Afghanistan has long had a history of opium poppy cultivation and harvest. As of 2021, Afghanistan's harvest produces more than 90% of illicit heroin globally, and more than 95% of the European supply. More land is used for opium in Afghanistan than is used for coca cultivation in Latin America. The country has been the world's leading illicit drug producer since 2001. In 2007, 93% of the non-pharmaceutical-grade opiates on the world market originated in Afghanistan. By 2019 Afghanistan still produced about 84% of the world market. This amounts to an export value of about US $4 billion, with a quarter being earned by opium farmers and the rest going to district officials, insurgents, warlords, and drug traffickers. In the seven years (1994–2000) prior to a Taliban opium ban, the Afghan farmers' share of gross income from opium was divided among 200,000 families. As of 2017, opium production provides about 400,000 jobs in Afghanistan, more than the Afghan National Security Forces. In addition to opium, Afghanistan is also the world's leading producer of hashish.

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<span class="mw-page-title-main">Poppy seed</span> Edible oilseed obtained from poppy

Poppy seed is an oilseed obtained from the opium poppy. The tiny, kidney-shaped seeds have been harvested from dried seed pods by various civilizations for thousands of years. It is still widely used in many countries, especially in Central Europe and South Asia, where it is legally grown and sold in shops. The seeds are used whole or ground into meal as an ingredient in many foods – especially in pastry and bread – and they are pressed to yield poppyseed oil.

"Polish" heroin is a crude preparation of heroin made from poppy straw. It is an opiate, used recreationally as a psychoactive drug. Poppy straw, like opium, is harvested from the opium poppy. Polish heroin was used mainly in Central and Eastern Europe prior to the dissolution of the Soviet Union and the end of communist control of the countries of the Warsaw Pact or Eastern Bloc.

<span class="mw-page-title-main">Codeine</span> Opiate and prodrug of morphine used to treat pain

Codeine is an opiate and prodrug of morphine mainly used to treat pain, coughing, and diarrhea. It is also commonly used as a recreational drug. It is found naturally in the sap of the opium poppy, Papaver somniferum. It is typically used to treat mild to moderate degrees of pain. Greater benefit may occur when combined with paracetamol (acetaminophen) or a nonsteroidal anti-inflammatory drug (NSAID) such as aspirin or ibuprofen. Evidence does not support its use for acute cough suppression in children or adults. In Europe, it is not recommended as a cough medicine in those under 12 years of age. It is generally taken by mouth. It typically starts working after half an hour, with maximum effect at two hours. Its effects last for about four to six hours. Codeine exhibits abuse potential similar to other opioid medications.

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Legal cultivation of opium for medicinal purposes is carried out in India, only in selected areas, under free licensing conditions. India is the world's largest manufacturer of legal opium for the pharmaceutical industry according to the CIA World Factbook. India is one among 12 countries in world where legal cultivation for medical use is permissible within the ambit of United Nations, Single Convention on Narcotic Drugs 1961. In India legal cultivation is done primarily in Madhya Pradesh, Rajasthan and Uttar Pradesh. Despite producing poppy for opium production India depends heavily on imports to meet need of Poppy seed for edible purposes and domestic Codeine demand for medical purposes . Opium is heavily imported from its top producing nations like Afghanistan. There is also an account of Opium black marketing in India.

<span class="mw-page-title-main">Poppy straw</span> Portion of opium poppy

Poppy straw is derived from opium poppies that are harvested when fully mature and dried by mechanical means, minus the ripe poppy seeds. Opium poppy straw today can be one of several different things. It is what remains after the poppy seed harvest, that is, the dried stalks, stem and leaves of poppies grown for their seeds. The dried leaves and stalks are harvested after the seed pods have been used for traditional opium extraction. The field dried leaves, stalk and seed pod are used in commercial manufacture of morphine or other poppy alkaloid derived drugs, by first processing the material to make poppy straw separating the seeds then making concentrate of poppy straw, where no extraction using traditional methods of latex extraction has been made. The straw was originally considered an agricultural by-product of the mechanised poppy seed harvest, which was primarily grown for its edible and oil-producing seed. This changed in 1927 when János Kabay developed a chemical process to extract morphine from the crushed capsule. Concentrated poppy straw consisting mainly of the crushed capsule without the seeds soon became a valuable source of morphine. Today, concentrate of poppy straw is a major source of many opiates and other alkaloids. It is the source of 90% of the world supply of legal morphine and in some countries it also is a source of illegal morphine, which could be processed into illegal heroin.

<span class="mw-page-title-main">Opiate</span> Substance derived from opium

An opiate, in classical pharmacology, is a substance derived from opium. In more modern usage, the term opioid is used to designate all substances, both natural and synthetic, that bind to opioid receptors in the brain. Opiates are alkaloid compounds naturally found in the opium poppy plant Papaver somniferum. The psychoactive compounds found in the opium plant include morphine, codeine, and thebaine. Opiates have long been used for a variety of medical conditions with evidence of opiate trade and use for pain relief as early as the eighth century AD. Opiates are considered drugs with moderate to high abuse potential and are listed on various "Substance-Control Schedules" under the Uniform Controlled Substances Act of the United States of America.

References

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  2. Lachenmeyer, Dick (2010). "Poppy seed foods and opiate drug testing-where are we today?". Therapeutic Drug Monitoring. 32 (1): 11–18. doi:10.1097/FTD.0b013e3181c0eee0. PMID   19901868. S2CID   11359316 . Retrieved 2021-05-22.
  3. 1 2 "Can you fail a drug test by eating a poppy seed bagel?". Good Food. 2018-08-10. Retrieved 2021-05-22.
  4. "Mom tests positive for opioids after eating a poppy seed bagel". Global News. 2018-08-09. Retrieved 2021-05-22.
  5. "Undone by a poppy seed bagel" . St. Louis Post-Dispatch at. Newspapers.com. 1987-09-06. Retrieved 2021-05-22.
  6. Meadway, C.; George, S.; Braithwaite, R. (1998-08-31). "Opiate concentrations following the ingestion of poppy seed products-evidence for 'the poppy seed defence'". Forensic Science International. 96 (1): 29–38. doi:10.1016/s0379-0738(98)00107-8. PMID   9800363 . Retrieved 2021-05-22.
  7. "Beating the poppy seed defense: new test can distinguish heroin use from seed ingestion". Medical Laboratory Observer. Retrieved 2021-05-22.
  8. "'Poppy seed roll' athlete beats dope ban" . The Australian. Retrieved 2021-05-22.
  9. Brice, Michael (2020-02-03). "Poppy seed defense: Rebecca Hernandez's newborn was taken away after false-positive opiate test". The Washington Post. Retrieved 2021-05-22.
  10. "Estimate's failed drug test: Red faces but no real scandal for racehorse owned by The Queen". The Independent. 2014-07-23. Retrieved 2021-05-22.
  11. Proudman, Chris (2014-07-24). "No, the Queen isn't doping her prized racehorses". The Conversation. Retrieved 2021-05-22.
  12. "The Queen's Estimate disqualified from Gold Cup in morphine case". The Guardian. 2014-09-25. Retrieved 2021-05-22.
  13. "Poppy seeds cause doping of Olympic horse". Horse and Country. 2015-10-07. Retrieved 2021-06-08.