Side Effects of Crataegus

Crataegus, more commonly called hawthorn, is a common shrub in many parts of the world. Extracts from the leaves and flowers are used medicinally for various uses, and people can buy hawthorn commercially as a dietary supplement. Several side effects are possible.

Uses

• Crataegus is primarily used as an herbal treatment for congestive heart failure, irregular heartbeat, angina, blood pressure irregularities and other cardiovascular disorders. It also has diuretic properties for treating edema and kidney disorders.

Common Side Effects

• Side effects are more likely with high doses of Crataegus. The most common effects include upset stomach, nausea, dizziness and drowsiness.

Risks

• Overdoses of Crataegus can negatively impact the cardiovascular system. Signs include sweating, rapid heartbeat, irregular heartbeat, light-headedness and fainting.

Warning

• People choosing to take Crataegus for heart-related symptoms should be diagnosed by a doctor first. Anyone taking Crataegus who experiences serious symptoms such as chest pain, shortness of breath, heart palpitations or irregular heartbeat should seek immediate medical attention.

Drug Interactions

• Crataegus can interact with many drugs, mainly medications for heart conditions and high blood pressure. This herb should never be used during the first trimester of pregnancy or while breastfeeding.