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Showing posts with label pain medications. Show all posts
Showing posts with label pain medications. Show all posts

Monday, July 27, 2015

HealthWise: Hepatitis C and Pain—Part 2, by Lucinda K. Porter, RN

Originally published July 1, 2015

Last month, I talked about hepatitis C and pain, and presented information about over-the-counter and prescription pain medication. Nonsteroidal anti-inflammatory drugs (NSAIDS) and opioids are effective painkillers, but they are associated with the risk of medical complications. This month I focus on pain management techniques that have little or no risk of injuring the liver or other organs in the body. I start with the controversial one—marijuana.  

Cannabis
Marijuana (Cannabis sativa) is slowly emerging from its status as the cause of “reefer madness” to a more reputable one showing potential medical benefits. However, before running out and buying some weed and a bag of Cheese Doodles, let’s explore these questions:
  • Is marijuana effective for reducing pain?
  • What is marijuana’s affect on the liver and hepatitis C?
First, let’s get one big frustrating fact out of the way: Marijuana is classified as a Schedule 1 drug. Drugs with a schedule 1 designation are deemed as having a high potential for abuse and no accepted medical use. Marijuana is tucked in there along with heroin, LSD, peyote, and ecstasy. Politicians determined this, not scientists. Because of this classification, marijuana is nearly impossible to obtain and test in clinical research. The bureaucracy is enormous, and permission is hard to get. In 2010, Time magazine summed it up this way, “Pot is listed as Schedule 1 because science hasn’t found an accepted medical use for it, but science can’t find a medical use for it because it is listed as Schedule 1.”

It is hard to imagine that marijuana is classified as a Schedule 1 drug when there has never been a reported death from marijuana overdose. Compare this to annual deaths from acetaminophen (300) or nonsteroidal anti-inflammatory drugs (7,000-10,000), and opioids (16,000). Compare marijuana’s zero deaths to those from legally obtainable substances, such as alcohol (88,000) or tobacco (480,000 including second-hand), and cannabis seems much safer.

This is not to say that marijuana isn’t without risk. In Colorado, two cannabis-related deaths are under investigation; one a suicide, the other a homicide in which other substances were involved. Also disturbing is the fact that the number of auto accidents have risen in Colorado since the legalization of pot.

These few deaths are hardly worth condemning pot for, especially since marijuana use may be causing a drop in the number of deaths from prescription opioids. States with liberal marijuana laws had a 25 percent reduction in opioid deaths. Cannabis is also associated with lower death rates in patients with traumatic injuries. That is just the beginning. The potential benefits are so many, that U.S. Surgeon General, Vivek Murthy said, “We have some preliminary data showing that for certain medical conditions and symptoms, marijuana can be helpful.”

Is marijuana effective for pain? Yes! I could write pages on this. The bottom line is that cannabinoids (a chemical compound found in a number of plants, including Cannabis sativa) interact with specific receptors in the brain. This appears to reduce pain and inflammation.

Will marijuana cause liver injury? It’s not well researched, but probably not. A Canadian study of 690 participants led by Laurence Brune and colleagues found, “Marijuana smoking does not accelerate progression of liver disease in HIV–Hepatitis C coinfection.” (Clinical Infectious Disease, Sep 2013). Previous studies have had mixed results.

What is marijuana’s effect on hepatitis C? The studies have been mixed. There is some research suggesting that marijuana may lower immune response. However, cannabis is being used in cancer studies with favorable results. In short, we don’t know.

What are the downsides of marijuana use? There are quite a few, such as risks of addiction, cognitive impairment, increased bleeding risks, etc. Frankly, we don’t know all the risks since marijuana has not been rigorously researched. I suspect that a day will come when marijuana will come with a paper insert that will list all the potential drug interactions, side effects, and warnings. Until then, keep this in mind:  We don’t know if cannabis interacts with hepatitis C medications. Marijuana may interfere with drugs that are metabolized via the liver’s cytochrome P450 enzyme system. This may affect the dose of your hepatitis C medications. If you use marijuana, work with a doctor who will prescribe it, and show you how to use it medically and responsibly.
 
Note: If you are on or are being considered for liver transplantation, marijuana use can be a disqualifier. The state of California recently introduced legislation to prohibit marijuana use as a factor for disqualification for organ transplantation. Other states may follow suit, especially in the light of Congress’s latest legislation banning federal interference on state medical marijuana laws.
Some insurance companies and state Medicaid programs are requiring drug testing prior to approval of hepatitis C treatment. If your medical provider has prescribed treatment and you use pot, find out if there will be drug testing. If so, educate yourself about the washout period, or how to pass the test; it varies depending on how often you use marijuana.

Drug-Free Pain Control
Ideally, relieving pain without drugs is the safest approach. The trick is to work with a specialist who is trained in the art of introducing drug-free pain measures while slowly reducing pain medication. All sorts of drug-free techniques are used, such as acupuncture, massage, hypnosis. Below are three drug-free techniques worth considering.
 
1. Exercise: I was surprised to learn that exercise topped the list of ways to reduce chronic pain, particularly arthritic and inflammatory pain. Exercise also helps fibromyalgia, migraine headaches and back pain. Aerobic exercise seems to be the best, and the intensity is determined by what you can tolerate. Walking is great exercise because it doesn’t require anything more than a good pair of shoes, sunscreen, and a safe place to walk. Gardening, dancing, bicycling, swimming, yoga, and tai chi are other fun ways to stay fit. If you are new to exercise, be sure to talk to your medical provider before starting. Start slow and only do what feels comfortable. 

2. Meditation: There are countless studies documenting meditation’s profound effect on reducing pain. Personally, I couldn’t imagine sitting still while relaxed, let alone in pain, so I had to experiment with this one myself. It works. It wasn’t as good as a spinal block or sedation, but it was free and without risk. There are many ways to meditate, but probably the most well-known in the U.S. is mindfulness-based stress reduction (MBSR) developed by Jon Kabat-Zinn. MBSR is taught in hospitals, clinics, and communities. 

3. Quitting Smoking:  In “Prevalence and risk factors for patient-reported joint pain among patients with HIV/Hepatitis C coinfection, Hepatitis C monoinfection, and HIV monoinfection,” Alexis Ogdie and colleagues reported that hepatitis C patients who smoked, had higher levels of joint pain. (BMC Musculoskeletal Disorders 2015) (See review of this article by Alan Franciscus here.) Granted, the study did not show that tobacco cessation would reduce pain, but we all know that smoking presents huge health risks. If you do decide to quit, seek professional help. Perhaps MBSR and exercise will help.

Final Words
I have tried to simplify a very complicated subject. Pain management deserves more than I gave it here. In nursing, I learned that pain is the fifth vital sign. In short, pain should be taken seriously. However, the tragic reality is that pain is understudied and poorly misunderstood. Some physicians over-prescribe painkillers; some under-prescribe them. The bottom line is that if your pain is not well controlled, ask to see a pain specialist.

Lucinda K. Porter, RN, is a long-time contributor to the HCV Advocate and author of Free from Hepatitis C and Hepatitis C One Step at a Time. Her blog is www.LucindaPorterRN.com

Resources
http://hcvadvocate.org/news/newsLetter/2015/advocate0715.html#2

Tuesday, June 2, 2015

HealthWise: Hepatitis C and Pain—Part 1, by Lucinda K. Porter, RN

Hepatitis C or no hepatitis C, everyone experiences pain from time to time. However, if you have chronic hepatitis C virus (HCV) infection, you are likely to have pain. The Institute of Medicine (IOM) estimates that around 100 million Americans have pain. Compare this to the 3 million Americans living with HCV, how do you know if HCV or something else is causing your pain? This two-part series will explore hepatitis C and pain.

Hepatitis C is called the “silent killer,” because the liver is a non-complaining organ. Liver cells don’t have nerves, so there can be serious tissue damage, but no pain. However, lack of nerve cells doesn’t mean there can’t be liver pain (hepatalgia or hepatodynia). Located in the right upper part of the abdomen, hepatalgia is usually caused by stretching of the capsule surrounding the liver, as well as by complaints from nearby organs. Liver pain does not mean that hepatitis C is worsening. The discomfort may be dull, sharp, mild, severe, constant or intermittent. For me it felt like my liver was fluttering. The only way I can describe it was it felt like when I was pregnant and the baby moved.

Even if there isn’t discomfort in the area of the liver, HCV may cause pain in other parts of the body. These are known as extrahepatic manifestations, and the complaints most associated with pain other than hepatalgia are:
  • Musculoskeletal (myalgia)
  • Joint pain (arthralgia)
  • Stomach pain 
Since pain is a common symptom of many medical conditions, the first order of business is to get a medical diagnosis to determine the cause of your discomfort. Is HCV the cause, or is there something else? It doesn’t have to be either/or, as some people have more than one cause of pain. If HCV is the cause, the next order of business is to find out if the pain is a direct result of the virus, or has HCV caused a secondary problem, such as cryoglobulinemia or an autoimmune disorder.

In the case of cryoglobulinemia, hepatitis C causes the body to produce proteins called cryoglobulins. Cryoglobulins clump together in the blood when they are cold; this causes joint pain. Various studies have shown that successful HCV treatment also improves cryoglobulinemia. The American Association for the Study of Liver Diseases (AASLD) and the Infectious Diseases Society of America (IDSA) HCV Guidelines highly recommend HCV treatment for people with cryoglobulinemia.

Treatment may also help HCV-positive people with autoimmune disorders such as lupus and rheumatoid arthritis. If the pain is primarily from HCV, then eradicating the virus usually eliminates the aches and pains that are caused by the virus.

Pain Medication
Acute pain, meaning that it is short-lived, is the easiest to manage. There is a wide selection of pain medications or analgesics, ranging from over-the-counter (OTC) aspirin to prescription narcotics. These drugs generally work well for acute pain because patients don’t take them for long periods of time, since the problem that caused the pain usually heals. 

That is not to say that there aren’t risks and downsides to taking painkillers—there are, especially from a liver standpoint. This risk increases if the liver is severely damaged by HCV. However, if someone with hepatitis C has a well-functioning liver, most physicians are comfortable prescribing a short-course of narcotics for conditions that warrant it, such as injuries or surgery. The risk to the liver is low, and it’s inhumane and medically unwise to withhold pain relief.

A much bigger problem is chronic pain, or pain that lasts for more than three months (some experts say six months). Chronic pain affects body, mind, and spirit, and it can change your life. The more severe the pain, the greater the transformation. Not the good transformation, like from a caterpillar to a butterfly; more like from a butterfly to an ogre.  

People with hepatitis C who are in pain, are confronted with the issue of finding pain relief that doesn’t further damage the liver. Fortunately, there is a wide selection of medications and pain management tools. Let’s explore pain medication this month; next month I’ll delve into medication-free pain management.

Nonsteroidal Anti-inflammatory Drugs (NSAIDs)
Acetaminophen (Tylenol) is one of the most commonly used non-prescription analgesics. Known as paracetamol in Europe, acetaminophen is great for headaches, fever and mild pain. Technically, acetaminophen is an NSAID, but it’s anti-inflammatory effects are not as good as drugs such as ibuprofen.

cetaminophen is one of the safest drugs there is, even if you have liver disease. It is harmless at low doses. However, acetaminophen can cause acute liver injury and death from acute liver failure at amounts just twice the maximum recommended dose of acetaminophen. The big problem with acetaminophen is that it is added to many medications. Remedies for colds, headaches, pain, sleep, sinus problems, cough and PMS often contain acetaminophen. Lose track of this fact, and you may take toxic amounts. For more information, read Acetaminophen: Safe or Harmless?(HCV Advocate,February 2014)

In the U.S., approximately 50 million people take acetaminophen every week, and more than 25 billion doses are sold yearly. Slightly more than 300 people die annually from it. Nearly all of these are from overdose; half are from intentional overdose (suicide attempts). Acetaminophen hepatotoxicity most commonly arises after a suicide attempt using more than 7.5 grams, but more often at more than 15 grams as a single overdose.

Aspirin is perhaps the most commonly used analgesic and fever-reducing medication in the world. At low daily doses (81 mg), aspirin is used to decrease the risk of stroke, and may prevent a second heart attack. Daily aspirin is no longer recommended to prevent heart disease unless there is a pre-existing condition.

At high doses, aspirin can injure the liver. However, this damage is not from toxicity, such as what may occur with high doses of acetaminophen. The biggest risk with aspirin is a gastrointestinal (GI) bleed. Far more people are injured every year from aspirin use than from acetaminophen. Mortality and morbidity studies are scant, but it appears that there are 10 times more deaths and hospitalizations from NSAID use than from acetaminophen. Complications may occur even at low doses, and the risk increases with age.

Rounding out OTC NSAIDs are drugs such as ibuprofen (Advil, Motrin) and naproxen (Alleve). These drugs are used for mild-to-moderate pain and inflammation. Around 30 million Americans take NSAIDs every year. These drugs rarely cause liver problems, but have other risks, such as injury to the kidneys and GI tract. In addition to OTC NSAIDs, there are many prescription NSAIDs.

Opioids
Opioids are medications related in structure to the natural plant alkaloids found in opium. There are natural and synthetic opioids, and many medications in this category. The most commonly prescribed opioids for pain are codeine, hydrocodone (Vicodin), and oxycodone (Oxycontin). Unlike NSAIDs, opioids have a high potential for dependency and abuse.

According to the CDC, more than 16,000 people in the United States die every year from overdose of prescription painkillers. This is approximately 44 people every day. On their own, opioids rarely injury the liver. However, opioids are sometimes formulated with acetaminophen, and excessive amounts can injure the liver. The FDA has recommended that physicians not use opioid combinations in which the dose of acetaminophen is greater than 325 mg per dose.

Opioid use is making the news these days. Hepatitis C infections rates are increasing at alarming rates in young people, most notably in Kentucky, Tennessee, Virginia and West Virginia. Sharing needles through opioid abuse is fueling this rise.

Another reason that opioids are making the news has to do with how it is prescribed. In some cases, opioids are over-prescribed. Just as bad, is that in some cases opioids are under-prescribed, leaving patients in misery. I am not going to dive in to this debate, but for those looking for well-written information on this, I highly recommend Judy Foreman’s book, “A Nation in Pain.”

What’s Ahead
When it comes to managing pain, there are more choices than just prescription and OTC medications. Next month, I will present information on effective alternatives, such as medical marijuana and drug-free pain management techniques including an effective technique that may surprise you. 

Lucinda K. Porter, RN, is a long-time contributor to the HCV Advocate and author of Free from Hepatitis C and Hepatitis C One Step at a Time. Her blog is www.LucindaPorterRN.com

Resources

http://hcvadvocate.org/news/newsLetter/2015/advocate0615.html#2