Calculate the overall dispensing adherence rate based on the provided data and the number of prescriptions containing antibiotics.

We sum the values in the "No of items prescribed (HF 11)" column.

$$A = 4 + 3 + 4 + 2 + 2 + 3 + 7 = 25$$

The total number of items prescribed is $\boxed{\text{25}}$.

We sum the values in the "Prescription Contains Antibiotic. Yes = 1 No = 0 (HF 13)" column.

$$C = 1 + 1 + 1 + 0 + 0 + 1 + 1 = 5$$

The total number of prescriptions containing antibiotics is $\boxed{\text{5}}$.

We sum the values in the "No. of items dispensed (HF 3)" column.

$$D = 4 + 3 + 2 + 1 + 2 + 3 + 5 = 20$$

The total number of items dispensed is $\boxed{\text{20}}$.

The dispensing adherence rate is the ratio of the total number of items dispensed to the total number of items prescribed, expressed as a percentage.

$$\text{Dispensing Adherence Rate} = \frac{\text{Total items dispensed}}{\text{Total items prescribed}} \times 100\%$$ $$\text{Dispensing Adherence Rate} = \frac{D}{A} \times 100\%$$ $$\text{Dispensing Adherence Rate} = \frac{20}{25} \times 100\%$$ $$\text{Dispensing Adherence Rate} = 0.8 \times 100\%$$ $$\text{Dispensing Adherence Rate} = \boxed{\text{80\%}}$$