General pharma Flashcards
Simple diffusion passive
Non-ionized drugs
Acidic: Aspirin/barbiturates
Basic: Amphetamine
Max drug absorption?
Small intestine (if oral)
pK value
pH at 50% ionized and 50% non-ionized
first pass metabolism in liver
only oral route all rest bypass liver (IV bypasses 100% and rectal 50% bypass)
drugs with high FPM (nigga phak lakisha)
Nitroglycerin - angina sublingual
Propranolol - tachycardia control - do no give to asthma pt)
Lignocaine - arrythmia V. tachycardia digoxin toxicity
T max
rate of absorption
C max
max plasma concentration
AUC - area under curve
extent of absorption (bioavailability)
Bioavailability
Depends on absorption and 1/FPM
IV 100%
Bioequivalence
allowed 80-120
Same Bioavailability
exception: phenytoin
Drug with highest vol of distribution
Chloroquine - malaria - 15000L - bulls eye maculopathy
Plasma protein binding of acidic drugs
Albumin - barbiturates - sulphonamide highest
Plasma protein binding of alkaline drugs
Alpha-1 acid glycoprotein - opioids, LA
weak acidic drug poisoning
forced alkaline diuresis
forced alkaline diuresis done by
Na bicarbonate (acetazolamide also)
weak alkaline drug poisoning
(amphetamine)
forced acidic diuresis
forced acidic diuresis done by
ammonium chloride (cranberry juice)
alkaline drugs
I-N-E suffix
kernicterus
bilirubin deposition in brain
sulfonamides (or any sulfa drug) can cause which brain disorder in neonates?
kernicterus by displacing bilirubin from albumin
Amphetamine antidote
Forced acidic diuresis
amm. chloride or cranberry juice
verapamil (CCB) antidote
Ca gluconate/chloride
gluconate by IV best 10% 10 min 10 mL
warfarin antidote
vit k1
organophosphate antidote
atropine + oxime pam
digoxin antidote
digibind, lignocaine, KCl
benzodiazepine antidote
flumazenil
opioids antidote
naloxone - best
methanol/ethylene glycol antidote
fomepizole, ethanol, folate
belladona/dhatura antidote
phystigmine
TCA/amitrypthaline antidote
sod. bicarbonate
propranolol (b-blocker) antidote
Glucagon
fluoxetine active form?
nor-fluoxetine
allopurinol active form?
oxypurinol
diazepam active form?
oxazepam
spironolactone active form?
canrenone
codeine active form?
morphine
primidone active form?
phenobabitone
Universal inhibitors
AMAs - macrolides, quinolones, azoles, cimetidine, grape fruit juice
Universal Inducers
rifampicin - TB
antiepileptic
chronic alcoholics and smokers
antiepileptic inhibitor
valporate
Estrogen + rifampicin
CYP3A4 - OCP fail
Cisapride erythromycin/ketoconazole
Astemizole +
Terfinadine
CYP3A4 - QT increase = arrythmia
erythromycin/ketoconazole
inhibitor
clopidogrel
antiplatelet
clopidogrel + omeprazole
CYP2C19 - MI/stroke because of antiplatelet failure
omeprazole
inhibitor
Best antiplatlet
aspirin
Tamoxifen + fluoxetine
Breast ca antigen?
CYP2D6 - Metastasis
Fastest receptors
Ionotropic receptors - nn and nm
GABA-A
Glutamate
Nicotinic
5-HT3
GABA a
barbi and benzo
GPCR
Metabotropic receptors
most common receptor
muscarinic
histamine
5-HT
GABA b
Alpha-Beta
serotonin
ACh
C-AMP
Ca
Most pituitary and hypothalamus hormones
Protein kinase receptors
Tyrosine - insulin
JAK - growth and prolactin
intracellular receptors
cytoplasmic - Glucorticoids, mineralocorticoids, sex steroids, vit d, androgens
nuclear - vit a, PPAR, thyroxine, estrogen
First order kinetics
elimination depending on PC
constant fraction eliminated
half-life constant
clearance constant
Zero order elimination
elimination - constant
constant amount
half-life depending on PC
Loading dose
volume of distribution * target concentration
chloroquinoline
Maintenance dose
clearance * target concentration
t1/2 (half-life)
0.693/K = 0.693*vd/cl
physiological antagonist feature
receptor different
pharmacological antagonist feature?
receptor same
thalidomide during pregnancy cause what deformity in baby?
phocomelia
lithium during pregnancy caused which anomaly in baby?
ebstein anomaly, cardiac malformation
ACE inhi
renal agenesis
Warfarin causes what anomaly in new born if given during pregnancy?
chondroplasia punctata
Carbimaszole causes which congenital defect?
aplasia cutis
Tetracyclines cause what defect?
bone, teeth and cartilage defect
valporate
spina bifida
z-injection technique
iron, haloperidol (anti-psychotic)
schedule H
prescription drugs
schedule G
given under medical supervision
schedule X
Narcotics and psychotropic (ketamine)
phase 1, who is involved? Open or closed label? What is tested? Number of patients?
humans - healthy - open label - max tolerable dose - 10-50 patients
phase 2 drug testing features?
exploratory, 100-500 patients, RCT + blinding, proof of concept
phase 3
therapeutic, 1000-5000 patients, RCT + blinding, confirm actual dose
phase 4
post marketing surveillance, open label, rare/missed adverse effects + interactions + newer indications
phase 0
micro-dosing, non-mandatory
What is pharmacovigilance? HQ in India and world?
monitor adverse drug reaction (vigiflow)
Ghaziabad - Sweden upsala
therapeutic index
TD50/ED50
more than 2 = broad
less than 2 - narrow
therapeutic index indicator for?
safety
Narrow therapeutic index drugs?
Phenytoin, digoxin, theophylline, lithium
Lithium dosage and toxicity?
0.5-1.2 safe
toxic - more than 1.5
coarse tremors - more than 2
severe/dialysis - more than 5
tensilon test is used for?
for myasthenia gravis, drug improves the condition
tensilon test drug used?
edrophonium - ameliorative test (neostigmine also)
myasthenia gravis TOC?
cholinergic - pyridostigmine, neostigmine
surgery - thymectomy
acute myasthenia gravis/crisis DOC?
IV immunoglobulins
Alzheimer’s/dementia receptor?
muscarinic receptors M1
cholinergic drugs for dementia/Alzheimer’s
memory enhancers
Donepezil
Galantamine
Rivastigmine - patch
and DO NO USE ANTI-Cholinergic drugs - dhatura
most common muscarinic receptor in brain
M1 - dimag
M2 - dil
NDMA drug for memory enhancing
Memantine
Anti-smoking drugs
varenicline - partial nicotine receptor agonist
Rotigotine patch for?
Parkinson’s
Anti-smoking drug used as patch/gum
Nicotine
Smoking anti-depressant
Bupropion - Dopamine + nor-adrenaline reuptake therapy, decreases suicide risk, Risk = seizures
Smoking anti-epileptic
Topiramate
Drug for cardiac stress test
Dobutamine - IV - Acts on B1
drug for Cardiogenic shock with oliguria
Dopamine - IV - Acts on D1B1A1
Drug for Anaphylactic shock
Epi/Adrenaline - 0.5 mg 1:1000 IM - histamine
Drug for overactive bladder
Beta-3 agonist - mirabegron
Drug for Hypertension in pregnancy
Labetalol, both oral and IV (3rd gen beta blocker-vasodilation)
Drug for Hypertension in pregnancy + asthma
Nifedipine (ca-cannel blocker)
Drug for congestive heart failure
Carvedilol, nebivolol (3rd gen beta blocker-vasodilation)
drug for Hypertrophic obstructive cardiomyopathy, akathisia and performance anxiety
Propranolol
DOC ADHD
Methylphenidate
Narcolepsy DOC
Modafinil
Which anti-epileptic drug is DOC for obesity?
Zonisamide and Topiramide
Which anti-depressant drug is DOC for obesity?
Bupropione (+Naltrexone)
Which anti-diabetic drug is DOC for obesity?
Liraglutide and Simaglutide
Which melanocortin receptor stimulant drug is DOC for obesity?
Setmelanotide - only for diabetic obese patient
Which lipase inhibitor drug is DOC for obesity?
Orlistat - fat in stool
Which Sympathetic stimulant drug is DOC for obesity?
Phentermine + Topiramide combination used
DOC Atrial fibrillation
Rate controller
Beta blocker - esmolol
CCB - Verapamil/Diltiazem
Digoxin
DOC Normal Sinus Rhythm
Ibutilide - Best
Dofetilide
Amiodarone
Vernakalant
Class 3 drugs
DOC anti-coagulant post AF
Oral = DTI + Xa inhibitor
Dabigatran + rivaroxaban
or warfarin
TOC Atrial fibrillation
DC shock
Acute SVT DOC
Adenosine injection
CCBs (Verapamil)
Prevention of Recurrence SVT DOC
Verapamil
WPW syndrome DOC
Flecainide
WPW syndrome drugs to avoid
Beta blockers
CCBs
Digoxin
VD/VF (monomorphic)
Lignocaine or Lidocaine
also used for MI and digoxin toxicity
VD/VF DOC (monomorphic)
Amiodarone
DC shock
Blue man syndrome
Amiodarone
DO NOT USE Amiodarone for?
Torsades de pointes or polymorphic VT
Polymorphic VT sign
Long QT
Amiodarone side effect
Thyroid issue, lungs, myocardium, liver
Amiodarone half life
3-8 weeks (56 days)
Torsades de pointes or polymorphic VT DOC
IV mg. sulphate
Mg. Sulphate antidote
Ca gluconate
DOC congenital QT
Propranolol (beta blocker)
First sign of Mg sulphate toxicity
loss of knee tendon jerk
DOC sinus bradycardia
Atropine IV
DOC first degree Heart block
Atropine IV
DOC second degree Heart block
Atropine IV
DOC second degree Heart block - Mobitz type 2
Pacemaker
DOC complete heart block
Pacemaker
Atropine not effective in?
Denerved heart or transplanted heart
Hyperkalemia DOC emergency
Insulin + glucose
Ca gluconate
Salbutamol
Chronic Hyperkalemia DOC
K binders
Benign Prostatic hyperplasia with hypertension DOC
Tamsulosin
DOC pheochromocytoma
Phenoxybenzamine
Name the drugs with high first pass metabolism given orally in high doses?
A - antidepressants - Imipramine
B - beta blockers - propranolol
C - CCB - Verapamil
M - morphine
A - Albuterol, Salbutamol
N - Nitrates
Name the drugs with high first pass metabolism not given orally?
Lignocaine - local anesthetic
Natural steroids like: estrogen, progesterone, testosterone, aldosterone, hydrocortisone
Loading dose calculation
Volume of distribution/plasma concentration
Depends on volume of distribution
Maintenance dose calculation
Clearance/plasma concentration
Depends on clearance and half life
Dialysis is effective for which drugs?
Aspirin, barbiturates, lithium
Dialysis is not effective for which drugs?
Amphetamines
Verapamil
Organophosphates
Isoniazid
Digoxin
Diazepam
What is hoffman’s elimination?
Inactivation of the drug in the body by spontaneous molecular arrangements without any enzyme
Atracurium
Atracurium drug specifications?
It’s a muscle relaxant which blocks signals between nerves and muscles
Used during surgical procedures
MC Subtype of CYP450?
CYP3A4
Theophylline is metabolized by which CY450 enzyme Subtype?
CYP1A2
Warfarin is metabolized by which CY450 enzyme Subtype?
CYP2C9
Clopidogrel and PPI (Omeprazole) is metabolized by which CY450 enzyme Subtype?
CYP2C19
CYP2D6 metabolizes which drugs?
(second MC Subtype of cytochrome P450)
Tamoxifen
Beta blockers
Antidepressants - SSRIs
Anti arrhythmic
Anti psychotics
PCM is metabolized by which CY450 enzyme Subtype?
CYP2E1
Acetylation drugs
Sulphonamide
Hydralazine
IHN
Procainamide
These drugs and cause SLE
Fast acetylators can cause?
Hepatotoxicity
Drug prescription criteria?
Safety
Tolerability
Efficacy
Price
When is Iron dose given?
Before meal or 30 minutes after
milk deceases ferrous sulphate absorption
Why don’t we give sulpha drugs to neonates?
Causes unconjugated bilirubin deposition in brain because no blood-brain barrier causing seizures - Kernicterus
Which anti-TB is inducer?
Rifampicin
Which anti-epileptic is inhibitor?
Valproate
Receptor for Aldosterone?
Cytoplasmic
Receptor for Spironolactone?
Cytoplasmic
Receptor for Adrenaline?
GPCR - alfa, beta
Receptor for TSH?
GPCR - pituitary gland hormone
Receptor for Thyroxine?
Nuclear
Purinergic receptors act via?
GPCR
Opoid receptor?
GPCR
Angiotensin receptor?
GPCR
If ED50 is low means?
Drug is more potent
ED50 is marker for potency
Therapeutic index is marker for?
Drug safety
Neurotransmitter and receptor for skeletal musles?
Ach
Receptor NM
under somatic n. system
Efferent nerve fibers are found in?
Both sympathetic and parasympathetic n. system
Sympathetic pathway’s location in spinal cord?
Dorso-lumbar/Thoraco-lumbar
T1 to L2/L3
Ganglia are away from organs
Parasympathetic pathway’s location in spinal cord?
Cranio-sacral (bohot upar and bohot neeche)
Cranial nerves (3, 7, 9, 10) and S2-S4
Ganglia are near the organs
Sympathetic preganglionic neurotransmitter?
ACh - NN
Nicotinic receptor = Ionotropic
Parasympathetic preganglionic neurotransmitter?
ACh - NN
Sympathetic postganglionic neurotransmitter?
Stress hormones
ACh - Nor adrenaline (main)
Dopamin: Vasodilation
ACh: Sweat glands secretions
Adr: Adrenal medulla
Parasympathetic postganglionic neurotransmitter?
ACh - M
In stress and fear which pathway?
Sympathetic
Pupils dilated, fight or flight
In relax and digest which pathway?
Parasympathetic
Precursor of Ach and its blocker drug?
Choline
Blocker Hemicolinium - decreases ACh production - rate limiting step
Drug which breaks storage vesicles of ACh?
Vesamicole
Drug which blocks release of ACh?
Botulinum toxin
Drugs for receptor ACh blockers?
Agonists and antagonists
5 levels where we can block function of ACh?
- stop production of ACh
- Break the storage vasicles of ACh
- Stop release of ACh - botulinum toxin
- Block ACh receptors
- Block ACh-esterase enzyme that breaks ACh
M1 receptors present in?
Stomach - acid secretion
brain - memory and cognition
M2 receptors present in?
Heart (bradycardia action)
M3 receptors present in?
Smooth muscles
secretory glands
sweat glands
blood vessels (vasodilation action)
M4 receptors present in?
Pre-synaptic or rate limiters
Which muscarinic receptors are stimulatory?
M1 and M3
Which muscarinic receptors are inhibitory?
M2 and M4
Name the nicotinic receptors
NN and NM
Antibody against which receptor causes myasthenia gravis?
Nicotinic NM
present in skeletal muscle NM junction and stops contraction/depolarization
NN receptors are present on?
Ganglia
Use and receptor of Bethanechol?
Receptor M3 which means it works on bladder and intestine and used in cases of atonic bladder or atonic ileus
Why is ACh not used?
Very short acting
Which drug is used in challenge test for bronchial asthma?
Methacholine
Now not used, now we use salbutamol
Where do we get Muscarine cholinergic drug from?
Mushroom alkaloid
Antidote is Atropine
DOC dry mouth (Xerostomia) and its receptor?
Cevimeline, M3
works on secretory glands and increases salivation
Use of Pilocarpine?
acts on M3 and causes Miosis so used in glaucoma
Side effects of Pilocarpine
Pain and accommodation spasm - ciliary muscle spasm
Peripheral retinal detachment (long term)
Punctum blockage
Decreased vision due to miosis
DOC ACh/Atropine/belladonna/dhatura overdose?
Physostigmine
crosses blood brain barrier because its lipid soluble
Name Tough DGR drugs (anticholinesterase)?
Tacrine
Donepezil
Galantamine
Rivastigmine
Tough DGR drug which is hepato-toxic?
Tacrine - NOT USED
Which tough DGR drug is available as patch?
Rivastigmine
Uses of tough DGR drugs?
Alzheimer’s disease, increase memory and cognition
Which anticholinesterase drug is an NMDA blocker?
Memantine
Name lipid soluble anticholinesterase drugs
Physostigmine - DOC Atropine, dhatura, belladona toxicity
Tacrine - not carbamate, rest all are carbamates
Donepezil DOC Dementia/Alzheimeir’s
Galantamine
Rivastigmine - available at patch
Name water soluble anticholinesterase drugs
Edrophonium/Tensilon
Pyridostigmine - DOC myasthenia gravis
Neostigmine - DOC cobra bite given with atropine
ALL HAVE DIRECT NM ACTION
Drug used for diagnosis of Myasthenia gravis?
Edrophonium/Tensilon - because its short acting
Which water soluble anticholinesterase drug is longest acting?
Pyridostigmine
that’s why DOC for Myasthenia gravis
Which drug is used for Ameliorative test?
Edrophonium/Tensilon
Name nicotinic uses of Neostigmine
Myasthenia gravis
Cobra bite - Neurotoxic - given along side atropine
Reversal of NM blockers
Name muscrinic uses of Neostigmine
Atonic bladder and ileus
Why is atropine given along with neostigmine in cobra bite?
to stop muscarinic side effects
Signs of OP and carbamate poisioning?
increased secrestions (sweat, tears, saliva)
Miosis - pinpoint pupil
Low HR - M2 receptor stimulation
DOC OP and carbamate poisioning?
Atropine - M blocker
Repeat till atropinization which means till you see signs of mucosal dryness and pupil dilation
When do we see best effect of Oximes in OP poisoning?
In early poisoning within 30 min
Name some oximes
Pralidoxime PAM - used in India
Diacetyl monoxime DAM - in foreign
Obidoxime
Name the drug we get at patch behind ear for motion sickness?
Hyoscine (scopolamine)
Where do we get hyoscine from?
Hyoscyamus Niger
Other uses of hyoscine?
Truth serum in narco test
Uses of Atropine?
OP poisoning
carbamate poisoning
early mushrooms poisoning
Name natural alkaloid anticholinergic drugs?
Atropine and hyoscine
Name semisynthetic anticholinergic drugs?
- Homatropine - eyedrops for mydriasis
- Hyoscine butyl bromide - SM relax, antispasmodic
- Ipratropium bromide and Tiotropium bromide - DOC COPD and asthma
Rx Parkinsons drug?
THP - benzhexol, procyclidine and biperiden
Central anticholinergics
Synthetic anticholinergics for mydriasis eyedrops?
cyclopentolate and tropicamide
Which Synthetic anticholinergic is used as preanesthetic to decrease secretions?
Glycopyrrolate
Which Synthetic anticholinergic is used as DOC for peptic ulcers?
Pirenzepine and telenzepine - works on M1and decreases acid secretion
6 drops given to newborns with colic, which drug?
Dicyclomine - antispasmodic
Name all SOFT synthetic anticholinergic drugs
Solifenacin
Oxybutynin
Flavoxate - UTI/uretheral spasms
Tolterodine
Trospium
All used for Bladder detrussor muscles in overactive bladder or urge incontinence
Name 3 nerve gases
Tabun, Sarin, Soman
Drug used for obesity?
Simaglutide
EMERGENCY acute heart failure, which drug is used to improve cardiac function?
Dobutamine - 2-5 mcg/kg/min IV drip/ infusion
A drug which is selective for secretory inhibition and does not go to the brain?
Glycopyrrolate
DOC to control BP preoperatively?
Phenoxybenzamine - pro drug - slower action lasts longer
DOC to control BP intra-operatively?
Phentolamine
First dose hypotension is seen in?
Alpha-1 blockers - started low dose - zosin suffix - given at bedtime
Dales vasomotor reversal Rx of pheochromocytoma?
First Alfa blockers then beta blockers
Aldosterone receptor?
GPCR
HTN + Bone pain + older age + pedal edema DOC?
HCT
DOC Mountain sickness?
Acetazolamide
DOC Motion sickness?
Hyoscine
DOC Morning sickness?
Doxylamine
Dose of primaquine for p. vivax in malaria for G6PD deficiency pts?
Weekly dose (because it causes hemolysis)
Nature of acidic drugs in stomach?
Unionized > Ionized
Nature of basic drugs in intestine?
Unionized > Ionized
Overall max absorption from oral route happens in?
SI
Name the substances that inhibit Iron sulphate absorption in stomach?
Food - phytates
Tannic acid in tea
Ca in milk
Thats why Iron given either before or 30 min after food with ascorbic acid
First pass metabolism mainly occurs in?
Liver
How to avoid first pass metabolism?
Parantral/sublingual
Effect of Lignocaine + Adrenaline?
decrease Lignocaine absorption = increased LA effect
what happens if we give Xylocaine (LA) with epinephrine?
Increased risk of dry gangrene due to peripheral vasoconstriction
What does AUC indicate?
Extent of absorption = Bioavailability
Cmax is?
Max plasma conc
Tmax is?
Rate of abs
Which blood barrier is stronger?
Blood brain barrier
Which drugs have highest plasma protein binding?
Sulpha drugs = hence not given to children because they can cause unconjugated bilirubin to reach brain and cause Kernicterus (sulpha drugs bind with plasma protein and displace other compounds like aspirin and bilirubin which increase their effect)
Use of Thiopentone sodium?
Induction of anesthesia - ultra short action duration - example of redistribution
Which is the best muscle relaxant drug for intubation?
Succinyl choline (2-3 min)
Which plasma protein basic drugs bind to?
alfa-1 acidic glycoprotein
Name extra-hepatic sites of drug metabolism
Plasma - esterase enzyme
Eg ACh - esmolol
SCh
Suffix -ium/-curium means?
Muscle relaxant
Which muscle relaxant can be given to liver and kidney pt?
Atracurium
Which drugs show phase 1 metabolism?
Catabolic/nonsynthetic/functionalization
Lipophilic
CYP450 dependent -
Oxidation-Reduction-Hydrolysis-Cyclization and Decyclization
Which drugs show phase 2 metabolism?
Synthetic/conjugation
Hydrophilic/water soluble
MC Glucuronidation
also sulfation, acetylation etc
Name 3 methods of drug metabolism?
Inactivation
Active metabolite from active drug - long effect
Activation of prodrug
Name active metabolites of following drugs:
Diazepam
Fluoxetine
Spironolactone
Amitriptyline
Codeine
Allopurinol
Primidone
Diazepam - Oxazepam
Fluoxetine - Nor-fluoxetine - long acting SSRI - 2 weeks
Spironolactone - Canrenone
Amitriptyline - Nor-triptyline
Codeine - Morphine
Allopurinol - Oxypurinol
Primidone - Phenobarbitone
Active form of Levodopa?
Dopamine - noradrenaline
Phase 1 metabolism is dependent on?
CYP450
MC subtype of CYP450?
CYP3A4
Enzyme in Kriggler najjer syndrome?
Glucoronil-transferase
Name some Inducer drugs
Anti-epileptics: Phenytoin
Phenobarbitone
Carbamazepine
Smokers
Chronic alcoholics
Rifampicin
Name some Inhibitor drugs
- Antimicrobial: Ciprofloxacin, erythromycin, ketoconazole, cemtidine
- Grape fruit juice
- Valproate
Name CAT drugs
Cisapiride
Astemazole
Terfendine
CAT + _______ increases effect of CAT drugs
Ketoconazole/cemtidine
causes CAT toxicity = QT prolonged = arrythmia
TOC mild acid drug poisioning?
Urine alkalization - sodabicarb
Eg Aspirin
TOC mild alkali drug poisioning?
Acidify urine - NH4Cl/grapefruit juice
Eg Amphetamine CNS stimulant (MDMA/ecstasy)
Soda bi-carb is DOC for toxicity of?
Aspirin
Barbiturates
Sulphonamides
Metabolic acidosis
How many half lives needed for almost removal of First order kinetic drugs?
4-5 half lives
Drug that follows true zero order?
Alcohol
Drug that follows pesudo zero order?
Phenytoin
First then zero
Clearance is constant in?
First order drugs - safer drugs - exponential curve
Rate of elimination is constant in?
Zero order - Alcohol
Define steady state PC
When we keep repeating the drug to achieve a steady state pc
4-5 t1/2 for almost complete elimination
Example of physical MOA
Osmotic diuretic, bulk laxatives
Example of transporter MOA
SGLT-1 WHO-ORS
SGLT-2 Glifozin - Used in diabetes and HF
Name Enzymatic receptors
TK - insulin
GC - Nitric oxide (cyclic GMP)
Growth hormone
Prolactin
DOC Heparin toxicity
Protamine
Atropine used of OP and carbamate poisoning, which type of antagonism is this?
Pharmacological - same receptor
MOA activated charcoal
Decreased toxin absorption in stomach - used in gastic lavage
Conditions in which activated charcoal is CI?
Corrosive - Acid/base poisoning
Kerosene
Examples of Physiological antagonism
Adrenaline for histamine - DOC
Glucagon for insulin - DOC
Different receptor
Best data is collected in which phase?
Phase 3 - efficacy and safety is tested
Prescription drugs are?
Schedule H
Schedule G drugs should be taken by?
Advise of RMP
Vaccines come in which schedule drugs?
Schedule C/C1
Schedule Y drugs are?
Clinical trial
Schedule X drugs are?
Narcotics and psychotropics
No of drugs designated as essential drugs in India?
384 drugs - NLEM 2022
Orphan drugs are used for?
Rare disease
<1/500000
Hard to get and mostly life saving
costly with less profit
What type of drug should be given as sustained release?
Drugs with short duration of acting requiring prolonged administration
DOC HACE
Dexamethasone
DOC HAPE
Nifedipine
DOC mountain sickness
Acetazolamide