Dielectric parameters such as the dielectric constant (є^’), dielectric loss (є^’’), static dielectric constant (є₀), dielectric constant at an optical frequency (є_∞), dielectric relaxation time(τ), change in activation free energies (ΔFτ, ΔFη) of brompheniramine with 1-butanol, 1-pentanol and 1-hexanol are determined for the various concentrations at 303K. The dielectric relaxation time (τ) is determined by Higasi and Cole-Cole method. The static dielectric constant (є₀) and relaxation time (τ) are decreased with increasing the concentration of brompheniramine in the selected 1-alcohol systems. The dielectric relaxation time (τ) increased with an increase in the chain length of the 1-alcohols. The results confirm that the intermolecular interaction depends upon the carbon chain length of the alcohols. The strength of the interaction between brompheniramine with 1- alcohols  is 1-butanol < 1-pentanol <1-hexanol.