How much Tribulus should I take? Take 40 drops of Swiss Herbal Remedies Tribulus tincture, in the morning, before 12.00 noon. Mix with a little water. Take 3 Swiss Herbal Remedies Tribulus capsules, in the morning, before 12 noon. CAUTIONS Tribulus should not be taken if you are pregnant or breast-feeding. It should not be taken by anyone with a psychosis, schizophrenia or phaeochromocytoma. Do not combine Tribulus with any other psychoactive medication; tranquillisers, sedatives, stimulants (even over the counter de-congestants such as ephedrine), anti-depressants. Tincture/capsule specification. Our Tribulus tincture is decocted, 1:3, 25% alcohol. Each Tribulus capsule contains 330mg of a 5:1 concentrated extract.