Managing Nausea in Suboxone Therapy

Mechanism and Prevalence

The National Comprehensive Cancer Network recommends considering the opioid agonist properties of buprenorphine, which can stimulate the chemoreceptor trigger zone in the brain, as a cause of nausea in patients restarting Suboxone therapy, particularly in those with a history of opioid use 1, 2
Nausea may be more pronounced when restarting Suboxone after a period without it due to changes in opioid tolerance, affecting patients who have previously used opioids 3

The National Comprehensive Cancer Network suggests that for patients with a prior history of opioid-induced nausea, prophylactic treatment with antiemetic agents is highly recommended before restarting Suboxone to prevent nausea, with effective agents including phenothiazines and dopamine receptor antagonists 1, 2, 4
Phenothiazines, such as prochlorperazine, and thiethylperazine, can be used as prophylactic agents to prevent nausea in patients restarting Suboxone 2
Dopamine receptor antagonists, including metoclopramide and haloperidol, are also effective in preventing nausea in patients restarting Suboxone 4

If nausea develops despite prophylaxis, the National Comprehensive Cancer Network recommends starting with as-needed antiemetics, and if nausea persists, administering antiemetics around the clock for 1 week and then changing to as-needed dosing 1, 2
Serotonin receptor antagonists, such as ondansetron and granisetron, can be added to the treatment regimen for established nausea, with lower rates of CNS effects 4

For persistent nausea, combining metoclopramide with ondansetron may provide synergistic relief, and adding corticosteroids can also be beneficial in reducing opioid-induced nausea 1, 2, 4
Alternative agents like scopolamine, dronabinol, or olanzapine may also be considered for the treatment of persistent nausea in patients restarting Suboxone 2

When restarting buprenorphine after using full opioid agonists, patients should be in mild opioid withdrawal before reinitiating buprenorphine to avoid precipitated withdrawal, which can worsen nausea, as recommended by the Annals of Internal Medicine 3

Untreated nausea can lead to poor medication adherence and potential relapse, according to the Annals of Internal Medicine, highlighting the importance of addressing nausea in patients restarting Suboxone 3
Gradually tapering antiemetics after nausea resolves is recommended by the National Comprehensive Cancer Network to prevent rebound nausea 1