WHO monographs on selected medicinal plants - travolekar.ru

<strong>WHO</strong> <strong>monographs</strong> on selected medicinal plants
volunteer. The results demonstrate that urinary oxalate levels in the volunteers
significantly increased (p = 0.01) by an average of 43.4% during
treatment. The excretion of potential lithogenic ions, calcium, phosphate,
and sodium also increased. However, inhibitors of stone formation, magnesium
and potassium, rose as well (43).
The effect of cranberry juice on risk factors for urinary stones was assessed
in a trial involving 12 healthy male subjects. The subjects provided
24-hour urine samples (three samples from each patient during the three
loading phases with water only). In each loading phase a neutral mineral
water was substituted for 330 ml of the juice. Cranberry juice decreased
the urinary pH, whereas the excretion of oxalic acid and the relative supersaturation
for uric acid were increased, indicating the potential for the
development of urinary stones (44).
Adverse reactions
One rare case of immune-related thrombocytopaenia has been reported
in a 68-year-old patient (45).
Nausea and severe vomiting were reported in a 4-month-old infant
after administration of 180 ml of cranberry juice (46).
Contraindications
The use of cranberry for the treatment of diseases of the urinary tract in
paediatric populations is ineffective and is not recommended (22, 43).
Warnings
Patients with kidney stones or impaired kidney function should use products
containing the fruit only after consulting their health care provider (47).
Precautions
A health care professional should be consulted prior to treatment to rule
out serious conditions such as pyelonephritis.
People with diabetes should be aware of the high content of sugar in
the juice and use sugar-free preparations.
Drug interactions
One case of a fatal internal haemorrhage was reported in a male patient
whose international normalized ratio (INR) increased to > 50 after being
treated with cefalexin, digoxin, phenytoin and warfarin, as well as cranberry
juice for 2 weeks. The subject was also unable to eat during the
2-week period (48). One case report of a possible interaction with warfa-
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