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Solid Dosage Forms PowerPoint Presentation

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Description : Check out this medical presentation on Pharmacology, which is titled "Solid Dosage Forms", to know about solid dosage forms.

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Published on : Jul 18, 2021 | Views : 3464 | Downloads : 2

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Department of Pharmacology & Toxicology Medical University – Sofia Dr. Rumen Nikolov, PhD Solid dosage forms
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Drugs are prepared in various forms for administration. The solid type of preparation is most common. The advantages of solid drug forms are convenience of administration; accuracy and reproducibility of a dosing; increased of a drug stability and easy of mass production.
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Solid drug forms tablets capsules sugar-coated tablets (dragee) powders granules sachets
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Тablets (tabuletta,-ae) A tablet is a solid dosage form that is prepared by compressing or molding of the drug into various sizes and shapes. Dissolution is the rate-limiting step in the delivery of drug from a tablet to the systemic circulation.
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Types of tablets: Tablets for oral administration Tablets for vaginal administration Tablets for implantation (pellets)
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Tablets for oral administration Film coated tablets Enteric coated tablets Effervescent tablets Sublingual tablets Buccal tablets Troches (lozenges) Chewable tablets Controlled release tablets - slow release tablets (SR) and modified release tablets (MR)
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Film coated tablets latin - Film tabulettae (film tab.) The tablet is coated with a membrane of polymeric substances that improves physicochemical stability of the drug and delays the rate of drug absorption. e.g. Augmentin
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Enteric coated tablets latin - Tabulettae enterosolventes (tab. enterosolv.) The tablet is coated with an acid-resistant substance that will dissolve only in the less acidic portions of the intestines e.g. Voltaren, Ospen
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Effervescent tablets latin – tabulettae effervescentes (tab. efferv.) The tablet contain sodium bicarbonate in addition to the drug substance. Before use they are dissolve in water. e.g. Acetylsalicylic acid
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Sublingual tablets latin – linguetta (ling.) The tablet is placed under the tongue Sublingual tablets are absorbed quickly into the bloodstream e.g. Nitroglycerin, Uprima
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Buccal tablets latin – tabulettae buccales (tab. bucc.) Buccal tablets are placed in the pouch between the cheek and gum They are usually small, flat and oval in shape e.g. Sandopart
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Troches (lozenges or pastilles) latin – pastillae The tablets contain a drug substance in flavored base. Lozenges are allowed to dissolve in the mouth. They are commonly used for cold and sore throat. e.g. Chlorhexidine
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Chewable tablets The tablets are placed in the mouth, chewed and swallowed. e.g. Talcid, Aspirin Direct
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Slow release tablets (SR) latin - depot-tabulettae (depot-tab.) The tablets are treated with special coatings so that various portions of the drug will dissolve at different rates. They are designed to produce drug effects over an extended time. SR tablets are administered less frequently (usually once daily). e.g. Isoptin SR, Ravel SR
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Modified release tablets (MR) Modified release tablets are a more advanced version in which release of the active ingredient is related to time. e.g. Preductal MR
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Implants (pellets) A small tablet that is prepared for insertion under the skin by giving a small surgical cut into the skin which is stitched after the insertion of tablets. The tablet must be sterile one. Contraceptive tablets are formulated as implant.
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Tablets for vaginal administration latin – tabulettae vaginales (tab. vag.) The tablets are intended for insertion into the vagina. e.g. Metronidazole, Tinidazole, Dinprostone
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Sugar coated tablets latin – dragee (drag.) The tablet that contains active ingradient(s) of unpleasant taste may be covered with sugar to make it more palatable. This type of tablet should be administered in whole form. Example: Vitaferro, Quinine.
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Capsules latin – capsulae (caps.) The drug is contained in a gelatin shell that breaks open after the capsule has been swallowed, releasing the drug. The hard-shell gelatin capsules contain solid drugs The soft-shell gelatin capsules contain oils
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Slow-release capsules contain pellets that dissolve in the gastrointestinal tract, releasing the drug slowly. Gastro-resistant capsules contain pellets that dissolve in the intestine.
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Writing prescription order for tablets, sugar coated tablets, and capsules The name of the drug and the strength in metric units are given in praescriptio. The total number of the single doses (or the number of blisters) and the drug form are given in subscriptio. The directions to the patient are filled in signatura.
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4а) Prescribe nitroglycerin in sublingual tabletsof 0,5 mg. Rp/ Nitroglycerini 0,5 mg D. scat. №1 in ling. S. Place 1 tablet under the tonque.
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4b) Prescribe metronidazole in vaginal tablets of 500 mg. Rp/ Metronidazoli 500 mg D.scat. №1 in tab. vag. S. Insert 1 tablet in vagina every evening for 7 days.
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5a) Prescribe ofloxacin in film coated tablets of 400 mg. Rp/ Ofloxacini 400 mg D. scat. №1 in film tab. S. Take 1 tablet every 12 hours for 5 days.
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5b) Prescribe acetylsalicylic acid in effervescent tablets of 324 mg. Rp/ Acidi acetylsalicylici 324 mg D. scat. №1 in tab.efferv. S. Take 1 tablet 3 times daily.
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6а) Prescribe isoptin in slow-release tablets of 240 mg. Rp/ Isoptin SR 240 mg D. scat. №1 in tab. S. Take 1 tablet daily.
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6b) Prescribe preductal in modified-release tablets of 35 mg Rp/ Preductal MR 35 mg D. scat. №1 in tab. S. Take 1 tablets 2 times daily.
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7а) Prescribe allergosan in dragee of 25 mg. Rp/ Allergosani 25 mg D. scat. №1 in drag. S. Take 1 dragee 2 times daily.
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7b) Prescribe amoxicillin in capsules of 500 mg. Rp/ Amoxicillini 500 mg D. scat. №1 in caps. S. take 2 capsules every 8 hours for 5 days .
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Powder latin - pulvis (pulv.) Powders are drugs or drug extracts that are dried and ground and micronized into fine particles. According to the division into prescribed doses powders are pulveres indivisi (all doses are given inseparably) and pulveres divisi (they are divides into the prescribed number of doses). According to the composition are simplex powders (consist one active ingredient) and complex powders (a mixture of more than one active ingredient).
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Writing prescription order for bulk powders (pulveres indivisi) The name and the total bulk of the drug are filled in praescriptio The size of the single dose and the number of doses per day written in signatura
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8а) Prescribe as powder 50 g sodium bicarbobonate. Rp/ Natrii hydrocarbonatis 50 g D. S. Take one teaspoon 1 hour after meals and at bedtime.
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8b) Prescribe 20 powders contain 50 mg Caffeine and 500 mg Analgin each. Rp/ Coffeini Natrii benzoatis 50 mg Analgini 500 mg Misce fiat pulvis. Da tales doses № 20 S. Take 1 powder 3 times daily.
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9а) Prescribe 20 powders contain 10 mg Codeine each. Rp/ Codeini phosphatis 10 mg Sacchari lactatis q.s. M. f. pulv. D. t. d. № 20 S. Take 1 powder 3 times daily. q.s. – quantum satis
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9b) Prescribe as officinal powder Topocin powder 5 g for external application. Rp/ Pulv. adsp. Topocini 5 g D. scat. №1 S. For external application.