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University of sulaimani
Tablet dosage form Aram I. Ibrahim University of sulaimani College of pharmacy Dep.of pharmaceutics
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Introduction tablets are solid dosage form each containing a single dose of one or more active substances. Tablets are intended for oral administration. Tablets can be: Swallowed whole Chewed Dissolved or dispersed in water Retained in the mouth
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Advantages Ease of administration Stable Accurate dose
Easy to handle and transfer Cheap
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Disadvantages Tablets are not suitable dosage form for drugs that are:
Resist compression Poor wetting and slow dissolution properties Bitter-tasting drugs, drugs with an unpleasant odor.
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Tablet formation Tablets are normally formed by powder compression.
The compression takes place in a die by the action of two punches
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Tablet processing steps
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Tablet press types Single-punch press Rotary press
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Tablet excipients Filler e.g., lactose, sucrose, mannitol, and calcium phosphate • Disintegrants e.g., starch and cellulose • Glidant e.g., Talc, silica • Lubricant e.g., magnesium stearate and sodium lauryl sulphate • Antiadherent talc and starch
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Types of lubricants
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Types of lubricants cont.
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Types of antiadherents
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Procedure Mix all the required powders in a bottle and shake it for 3 minutes. Put the powder blend in to the hopper of the tablet press machine. Start to press the powder and collect the tablers. Store your tablets in a tight closed container for further investigation in the next lab.
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