4. Categories of Drug
• Non-Prescription Drugs-
Prescription is not required.
They are directly sold on the counter.
e.g.-Pain Balm, Antiseptic cream,etc.
• Prescription Drugs-
• Prescription of RMP is required .
e.g.Antibiotics,narcotics,steroids,etc
5. NOMENCLATURE OF DRUGS
1.Chemical Name-According to the chemical constitution of that drug.
2. Non-Proprietary Name/Generic Name-It is the name which is
universally accepted.
3. Proprietary Name/Brand Name/Trade name-It is the name which is
given by specific marketing company for the sale of their product.
6. NOMENCLATURE OF DRUGS
Chemical Name Non-Proprietary Name/Generic Name Proprietary Name/Brand Name/Trade
name
1.Acetylsalicylic acid Aspirin Disprin, Ecosprin, Aspirtab etc.
2. 2-Acetamidophenol Paracetamol Panadol, Calpol, Tylenol, Alvedon, etc.
8. Pharmacology
Pharmacodynamics
What drug does to
body
Pharmacokinetics
What body does to
the drug
Pharmacotherapeutics
Use of drug in treatment
of various diseases.
Clinical
Pharmacology
Study of new
drug on Healthy
volunteer
Toxicology
Study of Poisons, toxicity
and poisonous effect of
drug and other chemicals
in use.
Chemotherapy
Use od Chemical agents
in the treatment of
infectious diseases
without damaging host
tissue.
9. Therapeutic Index
It determines margin of safety of drug.
It is a ratio of Lethal dose to Effective dose.
Therapeutic Index(TI)=LD 50/ED 50
Where,
LD 50=Maximum dose of drug which is lethal or toxic to 50% of population.
ED 50=Minimum dose of drug which is effective to 50% of population.
