Background

Rose hip is the part of the rose flower just below the petals that contains the rose plant seeds. It has been used for osteoarthritis and contains vitamin C.

While rose hip is often considered a good source of vitamin C, the processing and drying of the plant actually destroys most of it. Besides vitamin C, other natural chemicals found in rose hip may be helpful for a variety of health conditions.

People use rose hip for osteoarthritis and pain after surgery. It is also used for many other conditions, but there is no good scientific evidence to support these other uses.

Safety Safety definitions

When taken by mouth: Rose hip extract is likely safe when consumed in amounts found in foods. Rose hip from Rosa canina is also likely safe when used in larger amounts as medicine. Rose hip that comes from Rosa damascena is possibly safe when taken in larger amounts as medicine. There isn't enough reliable information to know if rose hip from other types of rose is safe in medicinal amounts. Rose hip can cause some side effects, such as diarrhea.

When applied to the skin: There isn't enough reliable information to know if rose hip is safe or what the side effects might be.

Special Precautions & Warnings:

Pregnancy and breast-feeding: There isn't enough reliable information to know if rose hip is safe to use as medicine when pregnant or breast-feeding. Stay on the safe side and stick to food amounts.

Kidney stones: In large doses, rose hip might increase the chance of getting kidney stones. This is due to the vitamin C in rose hip.

Effectiveness

Dosing & administration

Rose hip has most often been used by adults in doses of up to 5 grams by mouth daily for up to 12 weeks. Speak with a healthcare provider to find out what dose might be best for a specific condition.

Interactions with pharmaceuticals

Aluminum

Interaction Rating=Moderate Be cautious with this combination.

Aluminum is found in most antacids. Rose hips contain vitamin C. Vitamin C can increase how much aluminum the body absorbs. But it isn't clear if this interaction is a big concern. Take rose hip two hours before or four hours after antacids.

Aspirin

Interaction Rating=Minor Be watchful with this combination.

Vitamin C might decrease how much aspirin is removed in the urine. Rose hip contains vitamin C. Taking rose hip could increase the chance of aspirin-related side effects. But research suggests that this is not an important concern, and that the vitamin C in rose hip does not interact in a meaningful way with aspirin.

Estrogens

Interaction Rating=Moderate Be cautious with this combination.

Rose hip contains vitamin C. Vitamin C can increase how much estrogen the body absorbs. Taking rose hip along with estrogen can increase the effects and side effects of estrogens.

Lithium

Interaction Rating=Moderate Be cautious with this combination.

Taking rose hip might decrease how well the body gets rid of lithium. This could increase how much lithium is in the body and result in serious side effects. Talk with your healthcare provider before using this product if you are taking lithium. Your lithium dose might need to be changed.

Medications for cancer (Alkylating agents)

Interaction Rating=Moderate Be cautious with this combination.

Rose hip contains vitamin C, which is an antioxidant. There is some concern that antioxidants might decrease the effects of some medications used for cancer. If you are taking medications for cancer, check with your healthcare provider before taking rose hip.

Medications for cancer (Antitumor antibiotics)

Interaction Rating=Moderate Be cautious with this combination.

Rose hip contains vitamin C, which is an antioxidant. There is some concern that antioxidants might decrease the effects of medications used for cancer. If you are taking medications for cancer, check with your healthcare provider before taking rose hip.

Medications that slow blood clotting (Anticoagulant / Antiplatelet drugs)

Interaction Rating=Moderate Be cautious with this combination.

Rose hip might slow blood clotting. Taking rose hip along with medications that also slow blood clotting might increase the risk of bruising and bleeding.

Warfarin (Coumadin)

Interaction Rating=Moderate Be cautious with this combination.

Warfarin is used to slow blood clotting. Rose hip contains vitamin C. Large amounts of vitamin C might decrease the effects of warfarin. Decreasing the effects of warfarin might increase the risk of clotting. Be sure to have your blood checked regularly. The dose of your warfarin might need to be changed.

Interactions with herbs & supplements

Acerola: Rose hip and acerola both contain high levels of vitamin C. Don't take both together. This might give you too much vitamin C. Adults should not take more than 2000 mg of vitamin C per day.
Vitamin C: Rose hip contains vitamin C. Taking rose hip with vitamin C supplements might increase the chance of side effects from vitamin C. Adults should not take more than 2000 mg of vitamin C per day.

Interactions with foods

There are no known interactions with foods.