Cautions & contraindications Do not take buchu during pregnancy & breast-feeding. Do not use in kidney disease of any kind. Dosage Take 20 drops of Swiss Herbal Remedies buchu tincture three times daily before meals. Mix with a large quantity of water. Tincture specifications Swiss Herbal Remedies buchu tincture is an organic distilled & infused tincture 13 60% alcohol.