| Effect | None |
| Trial Design | Non-controlled trial |
| Trial Length | 2-4 Weeks |
| Number of Subjects | 57 |
| Sex | Both Genders |
| Age Range | 18-29, 30-44, 45-64 |
| Body Types | Average |
Supplementation of 16mg/kg of a water extract from the stems of _tinospora cordifolia_ for three weeks prior to surgery is able to prevent the surgery-induced reduction in macrophage phagocytosis and intracellular killing capacity although it was not significantly effective in reducing bilirubin.
No placebo group was used for ethnical reasons.
