{"id":634913,"date":"2026-01-06T12:29:23","date_gmt":"2026-01-06T17:29:23","guid":{"rendered":"https:\/\/www.singlecare.com\/blog\/?p=634913"},"modified":"2026-03-17T10:06:04","modified_gmt":"2026-03-17T14:06:04","slug":"gabapentin-and-magnesium","status":"publish","type":"post","link":"https:\/\/www.singlecare.com\/blog\/gabapentin-and-magnesium\/","title":{"rendered":"Can you take gabapentin and magnesium together?"},"content":{"rendered":"

Gabapentin<\/span><\/a> is a prescription medication approved by the Food and Drug Administration (FDA) to treat nerve pain (neuropathic pain) after certain infections and to help control seizures in adults and children 3 years and older. It\u2019s also widely used <\/span>off-label<\/span><\/a> for conditions such as fibromyalgia, anxiety, and insomnia.\u00a0<\/span><\/p>\n

Magnesium<\/span><\/a> is a common dietary supplement available in many different forms. It supports healthy nerve and muscle function, among other important roles in the body. Because both are so commonly used, many people take both magnesium and gabapentin together and wonder whether they can be safely combined without interacting with each other.<\/span><\/p>\n

Potential benefits of magnesium supplements<\/span><\/h2>\n

Magnesium is an essential mineral that our body uses for many core functions. It helps regulate nerve and muscle activity, supports healthy blood pressure, and contributes to tissue repair. Many people also use magnesium to promote relaxation, better sleep, regular bowel movements, or as an <\/span>antacid<\/span><\/a>. \u201cMagnesium acts as an NMDA receptor antagonist, which plays a key role in neurotransmission and pain modulation. It is used by both psychiatry and pain medicine to assist with depression, migraines, and chronic pain,\u201d explains <\/span>Brian Zachariah<\/span><\/a>, MD, board-certified psychiatrist at Mindpath Health in Katy, Texas.<\/span><\/p>\n

You can get magnesium from foods such as vegetables, nuts, legumes, and dairy products. It can also be found as a dietary supplement in various forms. Common forms of magnesium include magnesium oxide, magnesium hydroxide, magnesium citrate, and magnesium glycinate (also known as magnesium bisglycinate). Some over-the-counter (OTC) products with magnesium are used for specific symptoms like constipation, heartburn, or indigestion.\u00a0<\/span><\/p>\n

While dietary supplements aren\u2019t FDA approved to treat medical conditions, magnesium supplements are often marketed for muscle cramps, sleep, and stress. These issues may overlap with the reasons someone is prescribed gabapentin, which is why people may ask whether these two can cause a drug-nutrient interaction.\u00a0<\/span><\/p>\n

Can you take magnesium and gabapentin together?<\/span><\/h2>\n

There are known interactions between some magnesium products and gabapentin. According to its drug label, OTC antacids that contain magnesium hydroxide can reduce the amount of gabapentin absorbed into the blood (its bioavailability) by 20% when taken together.\u00a0<\/span><\/p>\n

A <\/span>review of studies<\/span><\/a> found that magnesium-containing antacids can significantly affect the bioavailability of many medications, reducing absorption by more than 50% in some cases. A small clinical study found that magnesium-oxide-based <\/span>antacids can lower the bioavailability of gabapentin by 32%\u201339%<\/span><\/a>.\u00a0<\/span><\/p>\n

When this happens, medications don\u2019t reach the correct concentration in the blood, and the person taking them may not get the benefits of the medication. This is called therapy failure, and in the case of people taking gabapentin, they may experience uncontrolled pain, seizures, or other symptoms. \u201cThough this doesn\u2019t make the combination dangerous, it can make gabapentin less effective for relieving nerve pain or helping with sleep,\u201d says <\/span>Simon Faynboym<\/span><\/a>, MD, psychiatrist and Medical Director at Neuro Wellness Spa in Long Beach, California.<\/span><\/p>\n

It\u2019s not reported whether all magnesium products or supplements can cause the same interaction with gabapentin. This is why it\u2019s best to check with your healthcare provider before taking an over-the-counter product with your gabapentin prescription.\u00a0<\/span><\/p>\n

How far apart should magnesium and gabapentin be taken?\u00a0<\/span><\/h3>\n

It\u2019s recommended to take gabapentin and magnesium-containing antacids at least two hours apart.\u00a0<\/span><\/p>\n

Gabapentin and magnesium comparison<\/span><\/h2>\n

Though there\u2019s some overlap between why people would take gabapentin or magnesium, these two substances are fairly different in what they are and how they work. Gabapentin is an anticonvulsant medication, and magnesium is a mineral that you can get from food or supplements.\u00a0<\/span><\/p>\n

Gabapentin vs. magnesium dosage<\/span><\/h3>\n

The dosage for gabapentin varies by patient, and healthcare professionals may consider factors like symptoms, severity, and your medical history. There\u2019s no standard dosage of magnesium, but the recommended daily amount for adults is between 310 mg to 420 mg. The upper daily limit of magnesium in dietary supplements and medications is 350 mg for adults. The maximum daily dosage of gabapentin can also vary by patient, between 2,400 mg to 3,600 mg daily.\u00a0<\/span><\/p>\n

Gabapentin vs. magnesium side effects<\/span><\/h3>\n

Gabapentin\u2019s common side effects include dizziness, drowsiness, nausea, and tiredness. When taken in high amounts, magnesium can cause diarrhea, nausea, abdominal cramps, and, in severe cases, heart rhythm issues and trouble breathing.\u00a0<\/span><\/p>\n

Gabapentin vs. magnesium cost<\/span><\/h3>\n

Without insurance, the cost of gabapentin averages $149 for 90, 300 mg capsules. Magnesium supplements can cost $11 for 30, 250 mg tablets of generic magnesium. Actual costs can vary depending on the type of gabapentin or magnesium and where you purchase them.\u00a0<\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n\n
\n

Gabapentin vs. magnesium: Comparison chart<\/span><\/h2>\n<\/th>\n<\/tr>\n<\/thead>\n

Differences<\/b><\/td>\nGabapentin<\/b><\/td>\nMagnesium<\/b><\/td>\n<\/tr>\n
Drug class<\/b><\/td>\nAnticonvulsant<\/span><\/td>\nNutrient (mineral)<\/span><\/td>\n<\/tr>\n
Standard dosage and forms<\/b><\/td>\nGabapentin immediate-release capsules and tablets: 100 mg, 300 mg, 400 mg, 600 mg, and 800 mg<\/span><\/p>\n

Gabapentin oral solution: 250 mg\/5 mL<\/span><\/p>\n

Gabapentin extended-release tablets: 300 mg, 600 mg<\/span><\/td>\n

Recommended daily amount (RDA) adults: 310\u2013420 mg<\/span><\/p>\n

RDA children 1\u201313 years old: 80\u2013240 mg<\/span><\/td>\n<\/tr>\n

Side effects<\/b><\/td>\n\n
    \n
  • Dizziness<\/span><\/li>\n
  • Drowsiness<\/span><\/li>\n
  • Nausea\u00a0<\/span><\/li>\n<\/ul>\n<\/td>\n
\n
    \n
  • Diarrhea<\/span><\/li>\n
  • Nausea<\/span><\/li>\n
  • Abdominal cramps<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n
Average cost without insurance<\/b><\/td>\n$149 for 90, 300 mg capsules<\/span><\/td>\n$11 for 30, 250 mg tablets<\/span><\/td>\n<\/tr>\n
SingleCare cost<\/b><\/td>\n$9 for 90, 300 mg capsules at Kroger<\/span><\/td>\n$4 for 30, 250 mg tablets at Walgreens<\/span><\/td>\n<\/tr>\n
How to save<\/b><\/td>\nGet coupon<\/span><\/a><\/td>\nGet coupon<\/span><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Prescription drug prices often change. These are the most accurate medication prices at the time of publishing in ZIP code 23666 as of Jan. 6, 2026. The listed price without insurance references the price of brand-name drugs (unless otherwise specified). The listed SingleCare price references the price of generic drugs if available.<\/span><\/i><\/small><\/small><\/p>\n

How magnesium affects gabapentin absorption<\/span><\/h2>\n

\u201cGabapentin and magnesium can interact in the digestive system; therefore, magnesium can reduce how well gabapentin is absorbed if taken at the same time,\u201d Dr. Faynboym says. Interactions between gabapentin and magnesium have only been reported with the antacid forms such as magnesium hydroxide and magnesium oxide. These products can bind to gabapentin in the stomach through a process called chelation. Chelation can happen with many minerals, like calcium, magnesium, or aluminum, and it can reduce how much of a medication is absorbed through the gut. Because of this, antacids that contain magnesium and aluminum, like Mylanta, are listed as known drug interactions on gabapentin\u2019s drug label.<\/span><\/p>\n

Dietary magnesium supplements, however, haven\u2019t been formally studied with gabapentin, so it\u2019s unclear whether they have the same impact on absorption. Still, many healthcare professionals recommend separating the timing of gabapentin and magnesium just to be safe. This is especially important for patients who rely on consistent gabapentin levels for symptom control, including preventing seizures.\u00a0<\/span><\/p>\n

Finally, some magnesium supplements at higher doses can cause diarrhea, which may further affect how medications are absorbed, according to Dr. Faynboym.<\/span><\/p>\n

Best practices for taking gabapentin and magnesium<\/span><\/h2>\n

If you are taking gabapentin and magnesium-containing products, there are ways to minimize interaction between the two so you can still get the best results. Here are a few best practices to consider:<\/span><\/p>\n