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Pharmaceutics MCQs Pharmaceutics MCQs You may also like, 1) MCQ Test on Microscopy.                                                          2) MCQ Test on History of Microbiology.                                   3) MCQ Test on Preservation of Cultures.                                     4) MCQ Test on Manufacturing Defects of Tablets .                For attempting MCQs test on tablets first enter your name and email address and after completion please don't forget to press "Submit" button. Loading… Pharmaceutics MCQs Pharmaceutics MCQs

Rotary Tablet Press. It is also called multi-station tablet press. Multi-station presses are termed rotary because the head of the machine that holds the upper punches, dies and lower punches in place rotate. As the head rotates the tablet granulation runs from the hopper through the feed frame into dies. Feed frame promotes a uniform fill of the die. Compression takes place as the upper and lower punches pass between a pair of rollers. The up and down movement of the punches is guided by fixed cam tracks. The portion of the head that hold the upper and lower punches are called upper and lower turrets and the portion holding the dies are called the die table . At the start of a compression cycle, granules from hopper empty into the feed frame, which has several interconnected compartments. These compartments spread the granules over a large area to provide time for the dies. Weight Adjustment cam guides the lower punches to the bottom of their vertical...

Tablet Compression Machine Tablets are made by compressing a formulation containing a drug or drugs with or without excipients on stamping machine called presses. Tablet presses are designed including following basic components: Hopper for holding and feeding granules. Dies that define the size and shape of the tablet. Punches for compressing the granules within the dies. Cam tracks for guiding the movement of the punches. A feeding mechanism for moving granules from hopper into the dies Tablets presses are classified either single punch or multi-station rotary presses. In the case of single punch machines, all of the compression is applied by the upper punch while lower punch acts as a supporter, making the single punch machine a “stamping press”. Single punch tablet press is also called as an eccentric press or single station press . It is the simplest machine for tablet manufacturing. Single station tablet press employs a single tooling station that is a di...

Antitussive Drugs. A cough is a protective reflex stimulated by the body to remove the unwanted particles from the respiratory tract. However, a cough can be pathological and may disturb the daily routine work of individual and hence when it becomes disturbing has to be stopped. Antitussives the name is derived from, Anti means "Aganisnt" "Tussis" means "a cough", and hence anticough. Antitussives can be defined as the drugs which ae used in treatment of cough. A cough can be categorized into a dry cough or a wet cough. A dry cough is also called as "Smokers Cough" and is not associated with mucus and hence called as "Dry", it produces a characteristic sound while coughing. A dry cough responds well to centrally acting cough suppressants. A wet cough is always associated with mucus and produces a wheezing sound during coughing, its is also called as "a productive cough." A wet cough usually responds well to the ...

1. Capping & Lamination: Complete  or partial loss of top and bottom crowns of a tablet from the main body is called capping.  The separation of a tablet into two or more distinct layers is called lamination. These problems occur immediately after compression, however may occur after several hours or days. Causes : 1. Air entrapment. 2. Deep concave punch. 3. Claw formation of Punch. 4. Wear ring formation in die wall. 5. Incorrect setting of the press. 6. Compression of too dry material Solutions : 1. Precompression 2. Reduction in speed of machine. 3. Reduction in final compression force. 4. Using flat punches. 5. Using hygroscopic materials to maintain proper moisture level eg. - PEG-4000 and Methyl Cellulose. 2.Picking & Sticking: Surface materials from a tablet that is sticking to the punch and being removed from the tablet surface is picking. Sticking refers to tablet materia...

style="display:none;" onload="if(submitted) {window.location='http://pharmanotes.cf/privacy-policy/thank-you/';}"> Online Test: Pharmacognosy #1. User email id Plz provide ur mail id to get ur marks and answer sheet, All questions are compulsory. 1) Morphine is obtained from.   Withania somnifera   Catharanthus roseus   Foeniculum vulgaris   Papaver somniferum 2) Ergot does not contain the followings except. (identify among below the only chemical present in Ergot.)   Starch   Aleurone Grains   Chitin   Calcium oxalate crystals 3) Mayer;s Reagent is... Iodine, Potassium iodide solution Potassium Mercuric Iodide   Potassium Bismuth Iodide   Picric Acid Solution 4) Nutmeg belongs to the family, Lauraceae Myristicaceae Leguminosae   Solanaceae 5) Digitalis should not contain % moisture more than... 5% 4% 50% 0.5% 6) Shogaol is chemical constituent of, Cinnamon Ajowan Ginger   Clove 7) Id...

According to the Indian Pharmacopoeia, Pharmaceutical tablets are solid, flat or biconvex dishes, unit dosage form, prepared by compressing a drug or a mixture of drugs, with or without diluents. Tablets can be defined as a compressed solid dosage form containing medicaments with or without excipients. As they are usually made by compression technology they are also called as "Compressed Tablets." Advantages of Tablets as a dosage form: Dosage accuracy. Economical. Lighter and compact. Easiest and cheapest for packing and transportation: Again reduces the final cost of the product. Easy to swallow with a little amount of water. Convenient to carry and administer. Release patterns of the drug can be modified from fast release to sustained release. Objectionable odor and bitter taste can be masked by a coating technique. Suitable for large scale production. Greatest chemical and microbial stability overall oral dosage form. Disadvantages of...

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General Anesthetics. General anesthetics are the pharmacological agents which on administration produce loss of all modalities of sensations along with a reversible loss of consciousness. They are used to perform major surgeries. e.g. Anesthetic ether, Midazolam. Anesthesia: - Anesthesia is a medical technique of producing a reversible loss of sensations and awareness. Anesthesia is of 3types General Anesthesia:- It is a total reversible loss of senses, reflex & consciousness. It is used for major surgeries. Local anesthesia:- It is a localized reversible loss of sensation without affecting the consciousness of a patient. It is used for minor surgical procedures like tooth extraction. Spinal anesthesia:- It is achieved by injecting a local anesthetic into spinal column at L 2 -L 3 - position (in subarachnoid space). It is useful for surgeries of lower limb & gynecological procedures. Classification of Gene...

​ Drugs acting on Nervous System. Nervous System is devided into two main branches  Central Nervous System  Peripheral Nervous System. Central Nervous System is further devided into, Brain and Spinal Cord. Peripheral Nervous System is further devided into, Autonomous Nervous System and Somatic Nervous System. The drugs acting on CNS are listed below, we will be seeing those drugs in detail in next notes. General Anesthetics. Analgesics (Narcotic Analgesics) Non-narcotic Analgesics. (NSAIDs). Hypnotic and Sedatives. Anti epileptics. Anti Parkinson's. Antipsychotics.

Resins They cannot be defined clearly. They can be described as mixtures of organic acids, alcohols, and esters. Physical Properties: They are amorphous, non- crystallizable, transparent, solids or semi-solids. They are insoluble in water & soluble in organic solvents. When heated they melt & burn with a sooty flame. They are produced in plants in the special type of glands. On boiling with alkalis they form resin soaps. They are nonnitrogenous. They are hard, heavier than water and nonconductive. On trituration with water they form emulsion Classification: - According to the principal components present, they can be classified as follows:- Class. Drug. Examples. 1 Acid Resin. Colophony, Myrrh. Abietic acid, Commiphoric acid. 2. Ester Resin. Benzoin, Storax. Benzyl benzoate. Benzyl cinnamate. 3. Resin alcohols. Balsam of Peru, Gurjanbalsam Peruresinotannol, Gurjuresinol. Resin Combinations: - 1 ) Oleoresins : - ...

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Volatile Oils. Synonyms: (Ethereal oils, Essential oils) Volatile oils are odorous principles of plants & animal origin chemically they are made of isoprene units (C5H8). Isoprene units (C5H8) combines to form monoterpenes  (C10H16),  Sesquiterpenes  (C15H24)  & diterpenes (C20H32). The characteristic odor of volatile oil is due to oxygenated compounds of terpenes. They evaporate of room temp without producing stain on the paper. As they evaporate at room temperature they are called as "Ethereal Oils". As they represent an essence of the plant they are also called as "Essential Oils." Physical Properties • They are insoluble in water, soluble in organic solvent. Except for clove oil they are lighter than H2O • They have a high refractive index. • They are found in various plant families like, Zingiberaceae, Lauraceae, Umbelliferae, Labiatae. Uses: - They are used as a carminative,  Favoring agent, Counter-irritant, D...