Aromatherapy for Prevention of Intrathecal Morphine Induced Nausea and Vomiting
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ClinicalTrials.gov Identifier: NCT03434340 |
Recruitment Status :
Completed
First Posted : February 15, 2018
Last Update Posted : April 18, 2019
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Condition or disease | Intervention/treatment | Phase |
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Post Operative Nausea and Vomiting | Biological: Peppermint essential oil Drug: Granisetron Drug: Dexamethasone | Not Applicable |
It is not uncommon to use different group of anti emetic in order to achieve high successful rate in the prevention of opioid induced nausea and vomiting. This study evaluates the effect of combining non pharmacological and pharmacological method to prevent such condition.
Aromatherapy has been used since many years to treat nausea and vomiting. One of the proposed mechanism is by the activation of olfactory receptor when the molecules of essential oil absorb in the mucus lining olfactory epithelium. The signal is then carried by olfactory sensory neuron to the olfactory bulb which filters and send signal to olfactory cortex as well as limbic system to give the feeling of well being.
Granisetron is a serotonin 3 receptor antagonist prevent or treat nausea and vomiting by competitively blocks the action of serotonin at 5-hydroxytryptamine 3 (5HT3) receptors while the mechanism of action of dexamethasone; which is a glucocorticoids is not fully understood.
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 155 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Single (Participant) |
Primary Purpose: | Prevention |
Official Title: | Aromatherapy as Prophylaxis for Prevention of Intrathecal Morphine Induced Nausea and Vomiting in Lower Segment Cesarean Section |
Actual Study Start Date : | June 26, 2018 |
Actual Primary Completion Date : | March 22, 2019 |
Actual Study Completion Date : | April 2, 2019 |

Arm | Intervention/treatment |
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Experimental: Granisetron & Dexamethasone & Peppermint essential oil
Granisetron 1mg and Dexamethasone 4mg administer as intravenous injection once right after delivery of newborn followed by Peppermint essential oil 2 drops on nasal strip applied for 6 hours
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Biological: Peppermint essential oil
2 drops applied on a nasal strip
Other Name: YoungLiving®, 100% pure Peppermint essential oil Drug: Granisetron 1mg intravenous injection Drug: Dexamethasone 4mg intravenous injection |
Active Comparator: Granisetron & Dexamethasone
Granisetron 1mg and Dexamethasone 4mg administer as intravenous injection once right after delivery of newborn
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Drug: Granisetron
1mg intravenous injection Drug: Dexamethasone 4mg intravenous injection |
- Severity of nausea and vomiting [ Time Frame: 24 hours ]Severity of nausea and vomiting is assessed by direct questioning or spontaneous complaint by patient at three time interval; after institution of spinal anesthesia until prior to being discharged from recovery bay, at 6 hour and 24 hour for 1 day. For nausea, severity is assessed using numerical rating scale (NRS). 0 means no nausea while 10 means worst imaginable nausea. As for vomiting, number of occurrence indicates severity. 1-2 times is considered mild, 3-5 times is moderate and more than 5 times is severe.

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Ages Eligible for Study: | 18 Years to 45 Years (Adult) |
Sexes Eligible for Study: | Female |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- American Society of Anesthesiologists (ASA) I and II.
- Non-smoker.
- BMI =< 40
- Singleton pregnancy
Exclusion Criteria:
- Patient with known allergy to granisetron, dexamethasone, bupivacaine, fentanyl, morphine, paracetamol, celecoxib, ginger oil.
- Patient who has inability to breathe through nose.
- Patient with history of post-operative nausea and vomiting (PONV) or motion sickness

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03434340
Malaysia | |
Universiti Kebangsaan Malaysia Medical Centre | |
Cheras, Kuala Lumpur, Malaysia, 56000 |
Principal Investigator: | Assoc Prof Dr Raha Abdul Rahman | Consultant Anaesthesiologist |
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Universiti Kebangsaan Malaysia Medical Centre |
ClinicalTrials.gov Identifier: | NCT03434340 |
Other Study ID Numbers: |
2017461 |
First Posted: | February 15, 2018 Key Record Dates |
Last Update Posted: | April 18, 2019 |
Last Verified: | February 2018 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
peppermint oil intrathecal morphine PONV |
lower segment cesarean section dexamethasone granisetron |
Nausea Vomiting Postoperative Nausea and Vomiting Signs and Symptoms, Digestive Postoperative Complications Pathologic Processes Dexamethasone Granisetron Anti-Inflammatory Agents Antiemetics Autonomic Agents Peripheral Nervous System Agents |
Physiological Effects of Drugs Gastrointestinal Agents Glucocorticoids Hormones Hormones, Hormone Substitutes, and Hormone Antagonists Antineoplastic Agents, Hormonal Antineoplastic Agents Serotonin 5-HT3 Receptor Antagonists Serotonin Antagonists Serotonin Agents Neurotransmitter Agents Molecular Mechanisms of Pharmacological Action |