Generally, mastic gum is safe for use and is well tolerated by most of its users. However, in some cases, some side effects may appear. If it happens, make sure to notify your physician about it and ask for advice. In fact, make sure to consult your doctor before starting to use it in the first place, especially if you are taking medicine for your condition. This goes especially for those who are using pantoprazole (Protonix) or any other ulcer medication.
Possible side effects of mastic gum are headaches, dizziness, and upset stomach. In order to lower the possibility of having any of these side effects, start using the smallest possible dose, and gradually increase it up to the full dose.
You may also experience an allergic reaction, especially if you have an allergy to the plant named Schinus terebinthifolius or any other Pistacia species (this also includes the pistachio tree). When it comes to the allergies, they could me relatively mild, with only nasal symptoms or mouth swelling or itchiness. They may, however, be more serious and require treatment, and in extremely rare cases it could cause a life-threatening whole-body allergy. In case of ash, hives, rapid or irregular heartbeats, dizziness or fainting, or the swelling of the face, throat, or tongue, shortness of breath, or wheezing, call 911 immediately.
Keep in mind that the U.S. Food and Drug Administration hasn’t regulated supplements such as mastic gum, so make sure to purchase this product from a producer that you trust.
This should go without saying, but make sure to follow the instructions related to the dosage that is written on the label, and, as mentioned above, to consult your doctor with any questions you may have.
Also, keep in mind that mastic is not a replacement for proper oral hygiene, such as brushing and flossing.
You should not take this supplement if you are pregnant or breastfeeding. It also hasn’t been tested on children, so avoid giving it to them.