Also indexed as: Seroquel®
Quetiapine is used to treat symptoms associated with psychiatric disorders, such as
delusions, hallucinations, disorganized thinking and speech, and bizarre behaviour. It is in a
class of antipsychotic drugs known as dibenzapines.
Summary of
Interactions with Vitamins, Herbs, and Foods
In some cases, an herb or supplement may appear in more than one category, which may seem
contradictory. For clarification, read the full article for details about the summarized
interactions.
 May be Beneficial: Supportive
interaction—Taking these supplements may support or otherwise help your medication
work better. |
Food
|
 Avoid: Adverse interaction—Avoid these supplements
when taking this medication because taking them together may cause undesirable or dangerous
results. |
Alcohol
|
| Depletion or interference |
None known
|
| Side effect reduction/prevention |
None known
|
| Reduced drug
absorption/bioavailability |
None known
|
An asterisk (*) next to an item in the summary indicates that the
interaction is supported only by weak, fragmentary, and/or contradictory scientific
evidence.
Interaction with Food and Other Compounds
Food
Taking quetiapine with food increases both the absorption and the maximum blood concentration
of the drug.1 Problems may arise when individuals switch from taking quetiapine
with a meal to taking it on an empty stomach and vice versa. Therefore, people should
consistently take quetiapine with a meal to enhance drug actions and to avoid potential
problems.
Alcohol
Quetiapine aggravates the adverse effect of alcohol on mental and motor skills, which might
have serious consequences.2 Therefore, people taking quetiapine should avoid
drinking alcohol, especially when they must stay alert.
References
1. Sifton DW, ed. Physicians’ Desk Reference. Montvale,
NJ: Medical Economics Company, Inc. 2000, 562–6.
2. Sifton DW, ed. Physicians’ Desk Reference. Montvale,
NJ: Medical Economics Company, Inc. 2000, 562–6.
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Learn more about the authors of Using
Medicines with Vitamins and Herbs
The information presented in Healthnotes is for informational
purposes only. It is based on scientific studies (human, animal, or in vitro),
clinical experience, or traditional usage as cited in each article. The results reported may
not necessarily occur in all individuals. For many of the conditions discussed, treatment with
prescription or over-the-counter medication is also available. Consult your doctor,
practitioner, and/or pharmacist for any health problem and before using any supplements or
before making any changes in prescribed medications. Information expires December 2005.