Metamucil, an over-the-counter fiber product, can be used as a dietary supplement or laxative. Although stomach pain is not a common side effect of the product, it may occur. Talk to your doctor if you have any questions or concerns about the way Metamucil will affect you.
Common Side Effects
Three common side effects of Metamucil are abdominal fullness, minor bloating and minor changes in your bowl habits. Although these side effects are not usually associated with pain, they may cause slight discomfort. If you find these side effects bothersome or experience any other unusual side effects when taking Metamucil, contact your doctor for advice.
Serious Side Effects
Although serious side effects from Metamucil are rare, they can occur. Severe stomach pain or cramping is one of these serious side effects. Other serious side effects can include chest pain, choking, difficult swallowing, trouble breathing, rectal bleeding, itchy skin rash or constipation that lasts longer than 7 days. Some people may also experience an allergic reaction while taking Metamucil. Signs of an allergic reaction include hives, tightness in the chest, rash, difficulty breathing and swelling of the face, mouth, tongue or lips. If you experience any of these serious side effects, seek emergency medical attention.
Contraindications
Some people are more likely to experience adverse side effects when taking Metamucil than others. If you have severe stomach pain, nausea or vomiting, do not take this product. Also avoid this product if you have trouble swallowing, have a sudden change in bowel habits that lasted longer than two weeks, if you have an allergy to psyllium or if you have ever had a skin rash while taking psyllium. In addition, certain medical conditions also may restrict your use of this product. If you have a blockage in your intestines, rectal bleeding, a colostomy or ileostomy, talk to your doctor before using this product.
Considerations
Although side effects and stomach pain from Metamucil is rare, making dietary changes may be just as effective and is less likely to cause any side effects. Because of this, you may want to consider eating high-fiber foods instead of taking a Metamucil supplement. Foods that contain good amounts of fiber include beans, vegetables, fruits, whole wheat, nuts and lentils.
Warnings
Metamucil can affect the way the body absorbs medication. Some medications known to be negatively affected by Metamucil include warfarin, demeclocycline, minocycline, doxycycline and tetracycline. Always tell a doctor or pharmacist about the current supplements and medications you are taking to avoid a potential interaction.
