Quinine (Cinchona) Bark - Granulated Powder 16-oz

Granulated-powder Quinine (Cinchona) Bark 16-oz. Great for making tea or encapsulating at your kitchen table.

“Caution - discontinue use if ringing in the ears, deafness, skin rash, or visual disturbances occur.“

In large amounts, cinchona is UNSAFE and can be deadly. Symptoms of overdose include ringing of the ears, headache, nausea, diarrhea, and vision disturbances. Cinchona can also cause bleeding and allergic reactions, including hives and fever.

Special Precautions & Warnings:
Pregnancy and breast-feeding: Don’t use cinchona if you are pregnant or breast-feeding. There is some evidence that cinchona is UNSAFE to use during pregnancy and if you are breast-feeding.

Stomach or intestinal ulcers: Don’t use cinchona if you have ulcers. It might increase the risk of bleeding.

Heart conditions such as long QT interval syndrome: Cinchona contains quinine and quinidine that can cause an irregular heartbeat and might increase the risk of irregular heartbeat in people with long QT syndrome.

 Myasthenia Gravis: Don’t use cinchona if you have myasthenia gravis. It contains quinine and quinidine that can cause muscle weakness and make your condition worse.

Surgery:Cinchona can slow blood clotting, so there is a concern that it might increase the risk of extra bleeding during and after surgery. There is also concern that quinidine in cinchona can increase the effects of muscle relaxants used during surgery. Stop using cinchona at least 2 weeks before a scheduled surgery.