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Professional
Consumer
MERCK MANUAL
Consumer Version
HEALTH TOPICS
HEALTHY LIVING
SYMPTOMS
EMERGENCIES
DRUG INFO
RESOURCES
COMMENTARY
ABOUT US
HEALTH TOPICS
HEALTHY LIVING
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Over-the-Counter Drugs
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Over-the-Counter Drugs
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Overview of Drugs
Prescription drugs or nonprescription drugs
Drug names
Drug groups
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Drug Design and Development
Stages of Drug Development
Early development
Clinical studies
Approval
Phase 4 (postmarketing)
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Placebos
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Drug Effectiveness and Safety
Making the Most of Drug Treatment
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Drug Errors
Using medication organizers
Understanding prescriptions
Prescribing drugs
Dispensing and administering drugs
Storing drugs properly
Taking expired drugs
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