Boswellia serrata, which is also known as “Indian Frankincense,” is used for a variety of purposes in alternative medicine. While it does demonstrate some medicinal benefits, this supplement also poses a risk of side effects to users.
Boswellia side effects are generally mild when it is used properly. Some people may experience gastrointestinal discomfort. High doses also pose a risk of more serious side effects.
Boswellia serrata is a branching tree found the mountains of the Middle East, Northern Africa and India. For medicinal purposes, the resin of this plant is used. It is extracted from the trunk of the tree, solidified and processed for the production of supplements, beverages, food, soaps and cosmetics.
In traditional medicine, Boswellia is used for a number of different conditions, including cancer, pimples, painful menstruation, syphilis, sore throat, allergic rhinitis, asthma, abdominal pain, ulcerative colitis, tendonitis, bursitis, rheumatism and rheumatoid arthritis.



- Effective natural anti-inflammatory
- Improves blood flow to the joint for better functionality
- Exhibits pain-relieving properties
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How Does Boswellia Work?
Components of Boswellia have an analgesic effect, allowing the drug to relieve certain types of pain. Boswellia also has mild sedative effect, and it reduces inflammation.
In addition, this substance has been shown to stimulate the immune system, lower cholesterol and improve skin health.
Studies have shown that Boswellia Serrata is typically safe when it is used according to the manufacturer’s directions and for no more than six months at one time.
However, it may cause side effects in some people. Some of the possible Boswellia Serrata side effects and risks are detailed below.
Boswellia Serrata Extract Side Effects
The most common side effects of Boswellia are gastrointestinal in nature and include nausea, acid reflux, diarrhea and stomach pain. When used topically, Boswellia creams may cause a rash.
At this time, is does not seem that Boswellia causes side effects for the liver when taken as directed. It is sometimes used as an alternative to NSAIDs for some patients dealing with inflammatory conditions, such as arthritis.
However, it is important to note that studies have found evidence of Boswellia’s potential to cause liver damage when the supplement is consumed in extremely high doses.
Boswellia Serrata Dangers
Clinical trials have not found many adverse effects associated with Boswellia serrata extract consumed orally at normal doses. In one clinical trial, for example, blood, urine and liver tests showed no major adverse events.
Likewise, in an experiment where healthy volunteers received a single dose of 333 mg of Boswellia, no adverse events were reported. Studies have not found any serious adverse events associated with the topical application of Boswellia serrata, either.
There is a warning that Boswellia serrata toxicity may be possible if too much of the supplement is consumed or if it is used for extended periods of time.
Studies have shown that the median lethal dose of this substance in rats and mice was more than 2 g per kg. Mouse research has also shown that extremely high doses of Boswellia can lead to liver toxicity and fatty liver.
Studies have not yet found any side effects associated with the use of Boswellia serrata in children. However, more research is needed. Unless directed to do so by a doctor, do not administer Boswellia to a child.
Preventing Boswellia Side Effects
To avoid any side effects associated with the consumption of Boswellia serrata, consumers should take no more than the recommended dosage. The dosage recommended depends on the intended use of a Boswellia serrata supplement.
Below are some dosage guidelines derived from recent studies involving Boswellia serrata.:
- Rheumatoid Arthritis – Up to 3,600 mg of standardized Boswellia serrata daily for up to 12 weeks.
- Osteoarthritis – Up to 333 mg of standardized Boswellia serrata three times daily for up to eight weeks.
- Crohn’s Disease – Up to 1,200 mg of standardized Boswellia serrata three times daily for up to eight weeks.
- Colitis – Up to 400 mg of standardized Boswellia serrata three times daily for up to eight weeks.
- Brain Tumor – Up to 126 mg per kg has been taken daily for a median of nine months.
- Asthma – Up to 300 mg three times daily for up to six weeks.
All of these dosages assume the use of a standardized Boswellia serrata product with a concentration of no more than 40 percent Boswellic acids.
Several standardized versions of Boswellia serrata are available. When choosing a product, make sure that your supplement includes the proper amount of active ingredient. If it does not, the dosage must be adjusted appropriately.
The dosages above are recommended for adults only. Because the safety of the drug has not been evaluated for pregnant and/or breastfeeding women, patients who fall into this category should not take Boswellia serrata unless directed to do so by a physician.
As with any supplement, you should always talk to your doctor before beginning Boswellia serrata.
Although the risk of Boswellia side effects is low, people who consume this supplement should still watch for adverse effects. If you experience severe side effects at any time while taking this supplement, seek medical attention immediately.
- Siddiqui M. Boswellia Serrata, A Potential Antiinflammatory Agent: An Overview. Indian J Pharm Sci. 2011.
- Kimmatkar N1, Thawani V, Hingorani L, Khiyani R. Efficacy and tolerability of Boswellia serrata extract in treatment of osteoarthritis of knee--a randomized double blind placebo controlled trial. Phytomedicine. 2003.
- Singh P, Chacko K, Aggarwal M, Bhat B, Khandal R, Sultana S, Kuruvilla B. A-90 Day Gavage Safety Assessment of Boswellia serrata in Rats. Toxicology International. 2012.
Article last updated on: March 12th, 2018 by Nootriment
7 Comments
I have left a phone message, but I am taking Armour Thyroid and Tertroxin, I have no thyroid gland and no spleen, It was recommended that I take Boswelia Complex 2 morning and 1 night for the first week then 2 per day thereafter.
Some studies have said this combination might have adverse reactions
Please can you tell me if this is true
Hi Rivella,
Given your individual medical history, it would be best to consult with a doctor who is familiar with your case to determine whether Boswellia is appropriate for you. There is always a risk of adverse reactions with any supplement, so it is better to be on the safe side.
Dear Nootriment Staff: Will the use of Boswellia have any possible side effects involving diverticulitis flare-ups? I was taking Boswelia and then had a diverticulitis flare-up and was wondering if there was a connection? I would like to use Boswellia for tennis elbow.
Hi
I have a question , i have a ulcerative colitis for about 10 years, its about a week that i am starting to use natural bosweilia as an alternative for my mesalasine drug , it works for me ! But i use it 3 times a day every time with a tea spoon of natural boswelia , then drink water on it , i read that every teaspoon is 4 grams ! Isnt it too much?? Should i take smaller doses? Pls help me
Hey Araofksi,
Thanks for your question and I am glad to hear you have found something that works for you!
It’s important to follow the dosage guidelines provided with the specific product you purchased as well as an directions provided to you by your physician. Different forms of herbal products can contain different concentrations of active ingredients. The recommended amount to take will vary depending on the specific product you are using and how it is formulated.
I am on warfarin (coumadin). I am taking InvigoFlex GS joint supplement. Glucosamine sulfate. 2KCL 1500 mg with Boswellia serrata 100mg. 2 caplets per day with food. I cannot find out if this this product THINS my blood even more being on warfarin. Can you please help with this question? Doctor and coumadin blood clinic are unable to answer this question.
Hi Lila,
Thanks for your question. Unfortunately, the reason your doctor and the clinic can’t answer this question is because there haven’t been any research studies conducted to demonstrate whether boswellia increases blood thinning when used with coumadin. It could cause an interaction, but without research it is not known whether this result will occur or not.