This document summarizes skeletal muscle relaxants and spasmolytics, dividing them into peripherally and centrally acting drugs. Peripherally acting drugs include neuromuscular junction blockers like non-depolarizing blockers (isoquinoline and steroid derivatives) and depolarizing blockers (succinylcholine). Centrally acting spasmolytics include benzodiazepines, GABA analogues, alpha-2 agonists, baclofen, and tizanidine. The document discusses the mechanism of action, pharmacokinetics, uses, and adverse effects of various muscle relaxants and spasmolytics.
5-Hydroxytryptamine & it’s Antagonist is a Topic in Pharmacology which will defiantly Help You in pharmacy field All information is related to pharmacology drug acting and it's effect on body. it is collage project given by our department i would like to share with you.
introduction ,classification of cholinergic receptor ,and its function ,anti cholinergic agents -atropine and its pharmacology ,semi synthetic and synthetic atropine substitutes
5-Hydroxytryptamine & it’s Antagonist is a Topic in Pharmacology which will defiantly Help You in pharmacy field All information is related to pharmacology drug acting and it's effect on body. it is collage project given by our department i would like to share with you.
introduction ,classification of cholinergic receptor ,and its function ,anti cholinergic agents -atropine and its pharmacology ,semi synthetic and synthetic atropine substitutes
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Coagulation: In medicine, the clotting of blood. The process by which the blood clots to form solid masses, or clots.
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An overview of Trismus which is also called as Lock Jaw. Trismus is a symptom in various condition. In this seminar i will be discussing about the various condition and diagnostic modalities and management
A good read for undergraduate students in Pharmacy studying at the University of Mumbai. I will highly recommend Essentials of Medical Pharmacology by KD Tripathi. All copyright to the original authors and publishers.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
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Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
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A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
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Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
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Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
6. NEUROMUSCULAR JUNCTION BLOCKERS
Classification according to duration of action
› Short acting
Succinylcholine <8 min
Mivacurium 10-20 min
› Intermediate acting
Atracurium 25-35 min
Cisatracurium 25-40 min
Rocuronium 25-35 min
Vecuronium 25-35 min
7. Long acting
Doxacurium more than 35 min
Tubocurarine more than 35 min
Pancuronium more than 35 min
Pipecuronium more than 35 min
16. Mechanism of Action:
Non Depolarizing / Competitive N.M Blockers i.e . Tubocurarine etc.
Competitive antagonist to Ach at Nicotinic (Nm) Receptor at MEP
N.M Transmission is interrupted leading to N.M. Blockade.
At Larger doses, some drugs also enter pore of ion channel of Nm ,
further decrease in N.M. Transmission.
19. D-TUBOCURARINE (PROTOTYPE)
Non depolarizing N.M. Blocker.
Source:
Chief alkaloid of curare Obtained from
Chondrodendron & Strychnos
Chemistry:
Mono quaternary Ammonium Compound.
20. Pharmacokinetics:
Not Abs. from GIT. Given I/V
It is redistributed. Not metabolised.
Excreted unchanged by kidney 40 % / Bile 60 %
Crosses Placenta but not harmful.
It does not cross BBB.
Mechanism of action:
O.O.A : 4 min.
D.OA: more than 35 min
21. Pharmacological effects
No central effects
Skeletal muscle relaxation. First weakness &
then paralysis.
Sequence of Paralysis of Skeletal Muscles:
Eye, Jaw, Facial muscles .
Muscles of Neck, Limbs , Trunk.
Interocostal muscles
Diaphragm
Recovery in reverse order.
Ganglionic blockade: Mild in high doses
22. CVS:
Hypotension due to
Release of Histamine.Vasodilatation, decreased PR , decreased
BP.
Bronchoconstriction due to Histamine release
Ganglionic Blockade (Vasodilatation) in larger doses.
PANCURONIUM
› Steroidal quaternary ammounioum compund
› 6 times more potent than Tubocurarine
› Quick onset of action
› No effect on ganglia
› Vagolytic effect
› Moderate increase in Blood Pressure
› No effect on CNS
› No effect on foetus
› No Histamine release
›
›
25. M.O A of Depolarizing drugs (Succinylcholine)
The Blockade occurs in 2 Phases
Phase I (depolarizing)
Phase I block: is augmented by anticholinestrase & not
reversed
26. Phase I (depolarizing)
1. Succinylcholine reacts with nicotinic receptors
2. Ion channels are opened → depolarization of motor end
plate.
3. Depolarization spreads to adjacent membrane
4. Result in disorgansed / generalized contraction of motor
unit.
5. Not hydrolyzed in synapse → persistent depolarization
→ flaccid paralysis
27. Phase II Block (Desensitizing Block)
With continued exposure—Initial end plate depolarization decreases
and membrane is re polarized but unresponsive/ desensitized to Ach.
due to:
Blockade of channel.
Development of in excitable area in muscle membrane immediately
surrounding the M.E.P which prevent the spread of impulses or
desensitization of membrane occurs .
29. SUCCINYLCHOLINE
› Hydolysed by plasma & liver Pseudochlone & butyryl
cholinesterases
› Duration of action is very short (8 min)
DIBUCAINE NUMBER TEST
33. SUGAMMADEX
When given post operatively there is rapid recovery from
even profound degree of Neuro muscular blockade.
It rapidly inactivate the steroidal neuro muscular blocking
drugs by forming an in active complex which is excreted in
urine
36. PHARMACOKINETICS
1/3 of oral dose is absorbed
t ½ is 8 hrs.
ADVERSE EFFECTS
•Muscle Weakness
•Sedation
•Occasionally hepatitis
THERAPEUTICS USES
Spasmolytic
Malignant hyperthermia
DOSE:
As Spasmolytic
Initially 25mg / day gradually increase over 7
weeks to a maximum of 100 mg 4 times a day
For Malignant Hyperthemia
41. Central Spasmolytics
• Spasticity is increased muscle tone.
• increase in tonic stretch reflexes and flexor muscle spasm with
muscle weakness
• Often observed in
– Cerebral palsy
– Multiple sclerosis
– Stroke
– ALS (Amyotrophic lateral sclerosis)
• Aim
• Reduction of excessive skeletal muscle tone without reduction of muscle
strength.
43. USES: Muscle Spasm
(local truma to tetanus)
DOSE: Oral dose initially 5 mg / day and
gradually increase to
maximum of 60 mg / day.
ADVERSE EFFECTS
Sedation
44. BACLOFEN
MOA: GABA B Agonist
ADVERSE EFFECTS
• Drowsiness
• Increase in seizure activity in epileptic patients
• Excessive somnolence
• Respiratory depression
• Coma
THERAPEUTICS USES
– Relieves muscles spasm. Most useful agent for
symptomatic treatment of spasticity
– Prevention of migraine
– Reduces craving in recovering alcoholics
45. TIZANIDINE
MOA: Centrally acting Alpha 2 agonist
Inhibits release of excitatory amino acids in the
spinal interneurons
It re-inforces both pre-synaptic & post- synaptic
inhibition in the cord
ADVERSE EFFECTS
Drowsiness
Hypotension
Dry mouth
Asthenia
46.
47. GABAPENTIN
Antiepileptic drug is a good spasmolytic agent in patient
with multiple sclerosis
PRE GABALIN
Newer analogue of gabapentin usefull in muscle spasm
PROGABIDE
Gaba A and Gaba B agonist and has active metabolites
including GABA itself
48. Riluzole
• Pharmacokinetics
– Absorption orally
– Highly protein bound
– Half life 12 hours
– Metabolism --- in liver by both cyotchrome P450-mediated hydroxylation and
glucurnidation
MOA
– it inhibits glutamate release
– It also blocks postsynaptic NMDA- and kainite-type glutamate receptors and
inhibits voltage-dependent sodium channels
49. Uses
• ALS
Dose
• 50 mg every 12 hours
Adverse effect
• Nausea
• Diarrhea
• Hepatic injury