In the states some of the health food stores sell empty capsules. You can also check at a pharmacy.
I reacted to parasite herbs, & I needed to start with very small amounts and I just added it to water. If you are a sensitive individual just please start with as small an amount as you can. Your healthfood store probably also has a pre-mixed formula for sale. A liquid may be easier to start with micro doses.
I used Clarkia (a mix of Wormwood , walnut and cloves)and had to slowly work up to a full dose.