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This study aims to compare skin reactivity results between morphine and histamine as a positive control agents in intradermal skin test.
Histamine hydrochloride and different concentrations of morphine sulfate will be intradermally injected and wheal diameter size will be comparatively measured between 15-30 minutes' time points after the test.
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| Measure | Description | Time Frame |
|---|---|---|
| Wheal diameter from morphine skin test at different concentrations compared to standard histamine between 15-30 minutes after skin test | 30 minutes |
| Measure | Description | Time Frame |
|---|---|---|
| Side effects | 24 hours |
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Inclusion Criteria:
Exclusion Criteria:
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Adult Healthy Volunteers
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| Name | Affiliation | Role |
|---|---|---|
| Jettanong Klaewsongkram, MD | Chulalongkorn University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Faculty of Medicine, Chulalongkorn University | Bangkok | 10330 | Thailand |
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