• The juniper berry has some medicinal uses.Brand X Pictures/Brand X Pictures/Getty Images
  
  The bluish berries of the juniper bush are most widely known for flavoring gin, but the oils extracted from the berries also have medicinal uses. However, Brandeis University warns that frequent high doses of juniper berries are toxic and cause kidney failure. Always consult with a physician or alternative therapy expert before using an herbal home remedy.
  
  

Diuretic

• The oil of juniper berries is used as a diuretic for patients suffering from cardiac or hepatic edema. The condition causes an accumulation of fluids in the cells and tissues of the body, resulting in swelling. Patients using oil of juniper may use one to three drops with milk. Those using spirit of juniper as a diuretic use 1 tsp. diluted with water several times a day to treat edema.
  
  

Appetite Stimulant

• Oil of juniper berries also works as an appetite stimulant if you suffer from a poor appetite. A poor appetite could mean you suffer from an insufficient amount of vitamins, minerals, proteins and fats in your diet. Juniper berries are an herbal remedy used to treat this condition. A tea made with equal parts juniper berries, nettle leaves, balm leaves and centaury at a ratio of 1 tsp. of the herbal ingredients each to a ½ cup of boiling water steeped, according to emedicinal.com.
  
  

Digestive Issues

• Juniper berries is also an herbal remedy for digestive issues such as indigestion and flatulence. The oil of the juniper berry is used in this remedy to sooth the stomach and prevent gas formation in the gastrointestinal tract or helps the body to release gas to provide relief.
  
  

Veterinary Use

• Juniper berry oil and lard may be used to treat an animal wound to prevent irritation of the injury from flies, according to Botanical.com.