Friday, May 3, 2013

Natural and Herbal Products


                Today’s blog is going to focus on natural medicine. This is a topic that I find very important, but I don’t think that the general population is educated enough about it. I hear from many patients that they are taking something herbal for their memory, energy level, or fertility. Their rationalization is that it’s natural, so it can’t be bad for them. Arsenic is natural. Just because something is a natural product or herb doesn’t mean that it’s safe and good for you. This blog will go over how to get information on natural and herbal products that is credible, accurate, and complete.
                Natural products and herbs are not regulated by the FDA. This is what makes selecting a product so hard. You might notice that on the back of the box or bottle of a natural product, it states what it is intended to do. “Promotes heart health” or “increases energy” are common statements. However, each of these statements is always followed by an asterisk, which correlates to a statement near the bottom of the box in small print that says “These claims have not been substantiated by the FDA.” Companies that make natural products are allowed to state that their product “supports the structure and function of the body, but can’t claim to diagnose, treat, cure, or prevent any disease. Their manufacturing plants also aren’t regulated, so it’s hard to tell if they use good manufacturing processes or if they monitor how much of the natural product goes into each dosage form. Some companies choose to go through a process to gain certification from the USP Dietary Supplement Verification Program. This is voluntary, but it ensures the quality of the product. USP Verified products contain the ingredients listed on the label in the listed strength, do not contain levels of contaminants that could be harmful, and are made according to the FDA’s good manufacturing processes. These products have a stamp on them to show that they are quality. See the end of the blog for a sample stamp.
                The biggest issues with natural products are of quality, safety, and efficacy. The composition of the products can vary between different manufacturers, and even between different lots from the same manufacturer. It’s also hard to tell if what’s in the bottle is what it says it is. Contaminants are another concern. Are there pesticides, metals, or other organisms in the product? Side effects and interactions aren’t written on the bottle, and people seldom ask a pharmacist if it is safe to take with their medications. There aren’t many studies on these products, and use of these can sometimes delay important medical procedures.
                So where does one look for information on natural products? Usually it’s a family member, a friend, or Google. Getting information from a family member can be dangerous because they might not have all the important information about the product. Also, the things that were used routinely when grandma was younger but aren’t used anymore aren’t used for a reason. We found them unsafe, ineffective, or less effective than another treatment that is used now. Information coming from a friend is often going to be one-sided and biased, because your friend has an opinion on the product. Whether he/she thinks it’s a great product or an awful product, it’s based on experience and subjective information, not on evidence. Google is full of even more old, biased, opinionated “facts” on herbal and natural products, so it can’t be any more trusted than the first two sources. There are, however, good sources to find information.
                Natural Standard is a company that was founded to provide accurate and complete evidence-based information for health care practitioners and patients. It is a very comprehensive source for all natural products and alternative medicine therapies. The information included is peer-reviewed and evidence-based. They have different monographs for different levels of information. There are monographs for professionals that include all the information in scientific terms, and then there are monographs in easier-to-understand language that also include all the information. This allows patients to get information they can understand and know that they have all the information available. The monographs include information on effectiveness, side effects, drug interactions, dosing, use in pregnancy and breastfeeding, historic background, and safety. This encompasses all of the information you would need to know.
                Natural Standard has five different databases to help search for information: Herbs & Supplements, Condition Center, Alternative Modalities, Dictionary, and Patient Information. In Patient Information, the database includes background, evidence, usage, dosing, safety, and interactions, as well as the monographs listed above. You can search by condition if there is something you are looking to treat, and the site offers all therapy options ranging from pharmaceutical to natural products to alternative medicine such as acupuncture. This site is definitely comprehensive in including all necessary information.
                If you are using or planning to use natural products, it is essential for you to get all of the information on the specific product you are considering. It is also important to ask your pharmacist if you can take it while you are on your other medications, even if the other medicines you take are not prescriptions. To get more information, there are databases online that can help provide complete and accurate information for patients. Naturalstandard.com is one of those sites. Please be safe when selecting therapies and always do your research!
Alexis Ireland, PharmD Candidate 2014


References 
FDA. www.fda.gov/Food/DietarySupplements.
Mani, Nandita MLIS. Natural Standard. J Med Libr Assoc. 2005 October; 93(4): 507–509.
Natural Standard. www.naturalstandard.com
U.S. Pharmacopeia. www.usp.org/USPVerified.

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