To use clavo huasca, add 1-2 teaspoons into a cup and pour in boiling water. Stir the mixture and allow it too steep for 10-15 minutes. Once the brew has been allowed to sufficiently steep, strain the mixture and drink. The ideal time to drink a clavo huasca tea is 30 minutes before you want the desired effects to take hold.
Alternatively, you can easily make a tincture out of the plant. Simply fill a glass with the herb and then top up with the strongest vodka you can find. Let it sit for at least 2 weeks, while shaking the glass once a day. After this period, filter out the plant matter and fill the liquid into a dropper bottle.