Flex Omega Benefits Side Effects
Generic Name: omega-3 polyunsaturated fatty acids
Note: This page contains information about the side effects of omega-3 polyunsaturated fatty acids. Some of the dosage forms included on this document may not apply to the brand name Flex Omega Benefits.
Not all side effects for Flex Omega Benefits may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.
For the Consumer
Applies to omega-3 polyunsaturated fatty acids: oral capsule liquid filled
In addition to its needed effects, some unwanted effects may be caused by omega-3 polyunsaturated fatty acids (the active ingredient contained in Flex Omega Benefits). In the event that any of these side effects do occur, they may require medical attention.
You should check with your doctor immediately if any of these side effects occur when taking omega-3 polyunsaturated fatty acids:Incidence not known
- Bleeding gums
- coughing up blood
- difficulty with breathing or swallowing
- fast or irregular heartbeat
- hives, itching, or skin rash
- increased menstrual flow or vaginal bleeding
- prolonged bleeding from cuts
- puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
- red or black, tarry stools
- red or dark brown urine
- tightness in the chest
- unusual tiredness or weakness
Some of the side effects that can occur with omega-3 polyunsaturated fatty acids may not need medical attention. As your body adjusts to the medicine during treatment these side effects may go away. Your health care professional may also be able to tell you about ways to reduce or prevent some of these side effects. If any of the following side effects continue, are bothersome or if you have any questions about them, check with your health care professional:Less common
- Acid or sour stomach
- bad, unusual, or unpleasant (after) taste
- bloated or full feeling
- change in taste
- excess air or gas in the stomach
- stomach discomfort, upset, or pain
- difficulty having a bowel movement (stool)
- loss of appetite
- nausea or vomiting
- passing of gas
- stomach fullness
For Healthcare Professionals
Applies to omega-3 polyunsaturated fatty acids: oral capsule, oral delayed release capsule, oral liquid
Gastrointestinal side effects including eructation (4.9%), dyspepsia (3.1%), anorexia, constipation, dry mouth, dysphagia, colitis, fecal incontinence, gastritis, gastroenteritis, gastrointestinal disorder, increased appetite, intestinal obstruction, melena, pancreatitis, tenesmus, and vomiting have been reported.
General side effects including infection (4.4%), flu syndrome (3.5%), back pain (2.2%), pain (1.8%), enlarged abdomen, asthenia, body odor, chest pains, chills, suicide, fever, generalized edema, fungal infection, malaise, neck pain, sudden death, and viral infection have been reported.
Other side effects including taste perversion (2.7%) and lymphadenopathy have been reported.
Dermatologic side effects including rashes (1.8%), alopecia, eczema, pruritus, and sweating have been reported.
One study concluded that omega-3 fatty acid supplementation reduced heart rate and QRS duration in heart transplant recipients who were presumably devoid of vagal intervention. These findings suggest that omega-3 fatty acids may modify the electrophysiologic properties of the myocardium itself.
Cardiovascular side effects including angina pectoris (1.3%), arrhythmia, bypass surgery, cardiac arrest, hyperlipidemia, hypertension, migraine, myocardial infarct, myocardial ischemia, occlusion, peripheral vascular disorder, syncope, and tachycardia have been reported.
Musculoskeletal side effects including rheumatoid arthritis, arthralgia, arthritis, myalgia, pathological fracture, and tendon disorder have been reported.
Metabolic side effects including edema, hyperglycemia, increased ALT and increased AST have been reported.
Nervous system side effects including depression, dizziness, emotional lability, facial paralysis, insomnia, vasodilation, and vertigo have been reported.
Respiratory side effects including asthma, bronchitis, increased cough, dyspnea, epistaxis, laryngitis, pharyngitis, pneumonia, rhinitis, and sinusitis have been reported.
Genitourinary side effects including cervical disorder, endometrial carcinoma, epididymitis, and impotence have been reported.
Hypersensitivity side effects including anaphylactic reaction have been reported.
Oncologic side effects including neoplasm and central nervous system neoplasia have been reported.
Ocular side effects including cataract have been reported.
Hematologic side effects including hemorrhagic diathesis have been reported.
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