A dry Ready-to-use, stable, modified release compositions comprising, a mixed matrix of natural gums components having plurality of layers thereby providing controlled release rate of β-blockers or beta-adrenergic blocking agents or their pharmaceutically acceptable salts such as Metoprolol to from formulation/tablet at various dosage strength, a process for production thereof. Solid oral dosage composition further comprises other pharmaceutically acceptable excipients, bulking agents, flavoring agents, coloring agents, additional lubricants and like. Dry composition are applicable to drug, veterinary and agricultural formulation, it could be applied to the retarded release of fertilizers, insecticides or specific protection agents.