Moexipril | Health Notes at WWSM | Health Information at WWSM

Moexipril

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Also indexed as: Perdix, Perdix, Univasc

Moexipril is used to treat high blood pressure, and is in a family of drugs known as angiotensin-converting enzyme (ACE) inhibitors.

Summary of Interactions with Vitamins, Herbs, and Foods
In some cases, a 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: Depletion or interference—The medication may deplete or interfere with the absorption or function of the nutrient. Taking these nutrients may help replenish them.	Zinc*
May Be Beneficial: Side effect reduction/prevention—Taking these supplements may help reduce the likelihood and/or severity of a potential side effect caused by the medication.	Iron
Avoid: Reduced drug absorption/bioavailability—Avoid these supplements when taking this medication since the supplement may decrease the absorption and/or activity of the medication in the body.	Food
Avoid: Adverse interaction—Avoid these supplements when taking this medication because taking them together may cause undesirable or dangerous results.	High-potassium foods* Low-salt diet Salt substitutes*
Check: Other—Before taking any of these supplements or eating any of these foods with your medication, read this article in full for details.	Lithium Potassium*
Supportive interaction	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.

Interactions with Dietary Supplements

Potassium
An uncommon yet potentially serious side effect of taking ACE inhibitors is increased blood potassium levels.¹ ² ³ This problem is more likely to occur in people with advanced kidney disease. Taking potassium supplements,⁴ potassium-containing salt substitutes (No Salt, Morton Salt Substitute, and others),⁵ ⁶ ⁷ or large amounts of high-potassium foods (such as bananas and other fruit) at the same time as taking ACE inhibitors could cause life-threatening problems.⁸ Therefore, people should consult their doctor before supplementing additional potassium and should have their blood levels of potassium checked periodically while taking ACE inhibitors.

Lithium
Lithium is a mineral that may be present in some supplements and is also used in large amounts to treat mood disorders, such as bipolar disorder. Taking lithium at the same time as ACE inhibitors may increase blood levels of the mineral.⁹ Controlled studies are needed to determine whether taking moexipril together with the tiny amounts of lithium present in some supplements might produce similar side effects. People taking moexipril should exercise caution when supplementing with lithium until more information is available.

Iron
In a double-blind study of patients who had developed a cough attributed to an ACE inhibitor, supplementation with iron (in the form of 256 mg of ferrous sulphate per day) for four weeks reduced the severity of the cough by a statistically significant 45%, compared with a nonsignificant 8% improvement in the placebo group.¹⁰

Zinc
In a study of 34 people with hypertension, six months of captopril or enalapril treatment led to decreased zinc levels in certain white blood cells.¹¹

It makes sense for people taking enalapril long term to consider, as a precaution, taking a zinc supplement or a multimineral tablet containing zinc. (Such multiminerals usually contain no more than 99 mg of potassium, probably not enough to trigger the above-mentioned interaction.) Supplements containing zinc should also contain copper, to protect against a zinc-induced copper deficiency.

Interactions with Foods and Other Compounds

Food
Taking moexipril with food dramatically reduces the absorption of the drug, especially when taken with a high-fat meal.¹² Therefore, moexipril should be taken an hour before or two hours after a meal.

Low-salt diet
Taking moexipril while on a low-salt diet might cause excessively low blood pressure.¹³ Therefore, people taking moexipril should notify their doctor before starting a low-salt diet.

References
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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 chemist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires September 2008.

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Interactions with Dietary Supplements

Interactions with Foods and Other Compounds