Design an optimum oral solid dosage form of antidepressant drug taken once weekly, mention excipients and role of each Design an optimum oral solid dosage form of 2 synergistic anti hypertensive drugs with different sites of absorption ( gastric and intestinal ), mention excipients and role of each Design an optimum oral solid dosage form of mixture of vitamin D and calcium carbonate, mention excipients and role of each Design optimum oral solid dosage form of a large dose drug ( 1gm ) , mention excipients and role of each one Design an optimum oral solid dosage form of antianginal drug with a small dose, mention excipients and role of each