Castor oil is made from the seeds of the castor bean and is typically used as a laxative. It is possible to use castor oil as a laxative to lose a few pounds but not on a consistent basis and not to lose large amounts of weight. Using castor oil as a primary means of weight loss is dangerous and can lead to serious intestinal problems. Before using castor oil to lose weight, talk with your doctor about whether this is indeed safe for you.
Follow the directions on the bottle of castor oil or the directions your doctor has given you regarding how much to use. Taking too much castor oil can lead to adverse effects. If you do not have a bowel movement after using castor oil, call your doctor, suggests Puristat Digestive Wellness Center.
Wait approximately five hours after taking castor oil before expecting any results. Do not it at bedtime, recommends MedlinePlus, as it works faster than other laxatives.
Store castor oil in the refrigerator and mix it with orange or another fruit juice to make it more palatable, states MedlinePlus. Mix it with the juice directly before consuming; do not let it sit and be sure to drink the entire mixture.