The inclusion complex of beta-cyclodextrin and minoxidil (2,4-diamino-6-piperidinopyrimidine 3-oxide) was synthesized using two methods-kneading and freeze-drying-and characterized by UV-Vis spectroscopy, infrared spectroscopy, powder X-ray diffractometry, differential scanning calorimetry, thermal gravimetric analysis, and nuclear magnetic resonance spectroscopy. These techniques have demonstrated the existence of inclusion compound formation between the host and guest with a molar ratio of 1:1. The studies of solubility and the data obtained by nuclear magnetic resonance spectroscopy showed a weak interaction between the guest and the cyclodextrin molecules in solution.6041732369377