The dosage of B12 depends on the method of administration. For orally administered preparations, it is recommended to give 2-3 drops per day. For B12 injections, a single dose of 1ml per week is sufficient.
Hepar comp is typically administered at a dosage of 1ml per day. However, it is most effective when combined with ubiquinone and coenzyme. In this case, the recommended dosage would be 1ml of each of the three medications.