Codeine and hydrocodone are both opioid medications, but there are many differences between these drugs. It’s important to be aware of the risks and benefits of each.
Codeine and hydrocodone are both prescriptionopioidmedications that can be used to treat similar conditions, but there are some important differences between each drug. The following provides an overview of how these drugs are used, the notable differences between them and the risks related to opioid use.
What Is Codeine?
Codeineis an opioid that’s prescribed for the treatment of mild pain and cough. Compared to most prescription narcotics, codeine is relativelylow-potency. While someone who takes codeine may experience an increased pain tolerance, they will likely know the pain is still there. This is why it’s often combined with other drugs, such as acetaminophen, to improve medicinal effects.
Although codeine is less potent than many other opioids, it still carries the risk of addiction, physical dependence and overdose. This risk can vary with the product, so codeine preparations range fromSchedule II to Schedule Vcontrolled substances.
What Is Hydrocodone?
Hydrocodoneis another opioid pain medication that’s often used in combination with acetaminophen. Hydrocodone is a relatively potent prescription painkiller, meaning it ismore powerful than codeine.
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Hydrocodone is also addictive, and the development of physical dependence isn’t uncommon with this drug. The drug is aSchedule IIcontrolled substance. It can also be misused to get high. When someone takes larger doses of hydrocodone, they may feel euphoric sensations and then become very tired and relaxed.
Codeine vs. Hydrocodone
Codeine and hydrocodone are both used to treat pain and suppress the cough reflex in the brain. However, there are key differences between the two drugs. These include:
- The drugs have different chemical structures. Hydrocodone is asemi-synthetic opioid, meaning that it is partially man-made. In contrast, codeine is a natural opioidderived from opium.
- Some people may not get any effect from codeine. If a person lacks aliver enzyme called CYP2D6that turns codeine into morphine in the body, they won’t feel effects. This isn’t the case with hydrocodone.
- Hydrocodone issignificantly strongerthan codeine. For this reason, it has more sedative effects and is more effective for treating severe pain.
As opioid drugs, codeine and hydrocodone bind to opioid receptor sites in the brain and slow down the central nervous system. This is why people can overdose on opioids — these drugs can slow the activity of the central nervous system to the point where respiration slows down or even stops entirely.
Codeine vs. Hydrocodone Cough Syrup
Both codeine and hydrocodone can be prescribed to treat a cough. Codeine cough syrup is considered pretty mild. In some states, cough syrups with low amounts of codeinemay be available over the counteras Schedule V controlled substances. In contrast, hydrocodone cough syrup is not approved for use in the United States but isavailable in Canada.
Hydrocodone cough syrup is often used in patients who have a cough as well as severe pain. For example, it may be used for patients who have a cough due to lung cancer. Hydrocodone cough syrup tends to be more effective than codeine for pain and cough, but it also has a higher risk of abuse and addiction.
Drug Allergy and Allergy-Like Side Effects
People frequently believe they’re having an allergic reaction to codeine because they experience symptoms like nausea and itching. However, these are normalside effects of codeine; true codeine allergies are rare. These side effects occur because codeineactivates a histamine responsethat’s similar to what happens when someone has an allergic reaction. Compared to codeine, hydrocodone isless likelyto cause this side effect.
Some patients who do have a codeine allergy may tolerate hydrocodone better due to differences in the chemical structure of each drug.
Codeine vs. Hydrocodone Conversion
Hydrocodone is much more powerful than codeine. In fact, codeine isonly about 15% as strongas hydrocodone. This makes hydrocodonemore effective for pain relief, and the drug also has fewer allergy-like side effects. However, hydrocodone increases the risk of addiction, dependence and overdose.
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