Uses & Effectiveness
Overview
Chitosan is a sugar that comes from the outer skeleton of shellfish, including crab, lobster, and shrimp. It’s used as medicine and in drug manufacturing.
Chitosan is a fibrous substance that might reduce how much fat and cholesterol the body absorbs from foods. It also helps blood clot when applied to wounds.
People use chitosan for high blood pressure, high cholesterol, obesity, wound healing, and many other purposes, but there is no good scientific evidence to support many of these uses.
Chitosan, derived from the shells of crustaceans like crabs and shrimp, is a unique dietary fiber that has the ability to bind to dietary fat in the digestive system, preventing its absorption by the body. This makes it a popular ingredient in weight-loss supplements.
Side Effects
When taken by mouth: Chitosan is possibly safe when used for up to 3 months. It might cause stomach upset, constipation, or gas.
When applied to the skin: Chitosan is possibly safe when used short-term.
Interactions
-
Warfarin (Coumadin) interacts with CHITOSAN
Warfarin is a blood thinner. There is some concern that taking chitosan might increase the blood-thinning effects of warfarin. This could increase the risk for bruising or bleeding.
-
Acyclovir (Zovirax) interacts with CHITOSAN
Taking chitosan with acyclovir might reduce the amount of acyclovir the body absorbs. This might reduce the effects of acyclovir.
Moderate Interaction
Be cautious with this combination
Special Precautionsand Warnings
When taken by mouth: Chitosan is possibly safe when used for up to 3 months. It might cause stomach upset, constipation, or gas.
When applied to the skin: Chitosan is possibly safe when used short-term.
Pregnancy and breast-feeding: There isn’t enough reliable information to know if chitosan is safe to use when pregnant or breast-feeding. Stay on the safe side and avoid use.
Shellfish allergy: Chitosan is taken from the outer skeleton of shellfish. People with allergies to shellfish might also be allergic to chitosan.
Dosing
Chitosan has most often been used by adults in doses of 1-1.35 grams by mouth daily for up to 12 weeks. It’s also used in mouthwashes, gels, chewing gum, eye drops, and wound dressings. Speak with a healthcare provider to find out what type of product and dose might be best for a specific condition.
