Dl0 is the maximum tolerated dose, which means that it is the maximum amount of drug that can be safely taken by a patient at one time.
Dl0 is calculated based on various factors such as the patient's weight, age, health status, etc. The effectiveness and safety of the drug are also taken into account.
For example, for drug “A”, dl0 might be 10 mg for a 70 kg patient, while for drug “B”, dl0 would be 5 mg for the same patient.
It is important to remember that when prescribing the dose of a drug, it is necessary to take into account not only dl0, but also other factors, such as side effects, interactions with other drugs, etc. Therefore, if you are taking any medications, always consult your doctor before changing your dosage or stopping a drug.