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Reglan Side Effects Center
Medical Editor: Charles Patrick Davis, MD, PhD
Reglan (metoclopramide) is a dopamine antagonist that is used as an antiemetic (anti-vomiting) agent used to treat nausea, vomiting, loss of appetite, heartburn and early satiety (feeling of fullness). Reglan is available in the generic form as metoclopramide. Common side effects of Reglan are decreased energy, diarrhea, dizziness, drowsiness, headache, nausea, vomiting, restlessness, malaise, trouble sleeping (insomnia), breast tenderness or swelling, changes in your menstrual periods, or urinating more than usual.
Reglan can be administered both orally and by IV or IM. IM doses range from 10-20 mg, while IV doses are usually only 10 mg. IV and IM doses are usually only given in hospitals or health care facilities. Oral doses can vary from 10 to 15 mg, and are taken four times per day to prevent vomiting and other symptoms. Reglan has potentially serious side effects, such as tardive dyskinesia (unusual muscle movements), muscle stiffness, depression, agitation and difficulty breathing. In general, patients usually do not exceed 12 weeks of medication to reduce the chance of developing tardive dyskinesia. Because it may cause sleepiness patients are not to drive or use heavy machinery while taking Reglan. Patients that develop serious side effects should notify their doctor immediately or go to an emergency department. Benadryl is often used to treat these side effects. Also, Reglan interacts with a number of common drugs including Tylenol, Haldol, Phenobarbital, lithium and many others. Pregnant females should consult with their OB-GYN physicians before taking this medicine. Caution should be exercised when Reglan is administered to a nursing mother.
Our Reglan Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.
What is Patient Information in Detail?
Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.
Reglan in Detail - Patient Information: Side Effects
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop taking metoclopramide and call your doctor at once if you have any of these SIGNS OF A SERIOUS MOVEMENT DISORDER, which may occur within the first 2 days of treatment:
- tremors or shaking in your arms or legs;
- uncontrolled muscle movements in your face (chewing, lip smacking, frowning, tongue movement, blinking or eye movement); or
- any new or unusual muscle movements you cannot control.
Stop taking metoclopramide and call your doctor at once if you have any of these other serious side effects:
- slow or jerky muscle movements, problems with balance or walking;
- mask-like appearance in your face;
- very stiff (rigid) muscles, high fever, sweating, confusion, fast or uneven heartbeats, tremors, feeling like you might pass out;
- depressed mood, thoughts of suicide or hurting yourself;
- hallucinations, anxiety, agitation, jittery feeling, trouble staying still;
- swelling, feeling short of breath, rapid weight gain;
- jaundice (yellowing of your skin or eyes); or
- seizure (convulsions).
Less serious side effects may include:
- feeling restless, drowsy, tired, or dizzy;
- headache, sleep problems (insomnia);
- nausea, vomiting, diarrhea;
- breast tenderness or swelling;
- changes in your menstrual periods; or
- urinating more than usual.
Read the entire detailed patient monograph for Reglan (Metoclopramide)
What is Patient Information Overview?
A concise overview of the drug for the patient or caregiver from First DataBank.
Reglan Overview - Patient Information: Side Effects
Drowsiness, dizziness, tiredness, trouble sleeping, agitation, headache, and diarrhea may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if you have any serious side effects, including: mental/mood changes (such as anxiety, confusion, depression, thoughts of suicide), decreased sexual ability, inability to keep still/need to pace, muscle spasms/uncontrolled muscle movements (such as twisting neck, arching back), abnormal breast-milk production, enlarged/tender breasts, swelling of the hands/feet, changes in menstruation in women.
This medication may cause side effects that look like Parkinson's disease. Tell your doctor right away if any of these serious side effects occur: shaking (tremors), slowed/difficult movement, muscle stiffness, mask-like facial expression.
This drug may infrequently cause a serious (sometimes fatal) nervous system problem (neuroleptic malignant syndrome). Get medical help right away if you notice any of the following very serious side effects: fever, rigid muscles, increased sweating, fast heartbeat, confusion.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Read the entire patient information overview for Reglan (Metoclopramide)
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
Reglan FDA Prescribing Information: Side Effects
In general, the incidence of adverse reactions correlates with the dose and duration of metoclopramide administration. The following reactions have been reported, although in most instances, data do not permit an estimate of frequency:
Restlessness, drowsiness, fatigue, and lassitude occur in approximately 10% of patients receiving the most commonly prescribed dosage of 10 mg q.i.d. (see PRECAUTIONS). Insomnia, headache, confusion, dizziness, or mental depression with suicidal ideation (see WARNINGS) occur less frequently. The incidence of drowsiness is greater at higher doses. There are isolated reports of convulsive seizures without clearcut relationship to metoclopramide. Rarely, hallucinations have been reported.
Extrapyramidal Reactions (EPS)
Acute dystonic reactions, the most common type of EPS associated with metoclopramide, occur in approximately 0.2% of patients (1 in 500) treated with 30 to 40 mg of metoclopramide per day. Symptoms include involuntary movements of limbs, facial grimacing, torticollis, oculogyric crisis, rhythmic protrusion of tongue, bulbar type of speech, trismus, opisthotonus (tetanus-like reactions), and, rarely, stridor and dyspnea possibly due to laryngospasm; ordinarily these symptoms are readily reversed by diphenhydramine (see WARNINGS).
Tardive dyskinesia most frequently is characterized by involuntary movements of the tongue, face, mouth, or jaw, and sometimes by involuntary movements of the trunk and/or extremities; movements may be choreoathetotic in appearance (see WARNINGS).
Motor restlessness (akathisia) may consist of feelings of anxiety, agitation, jitteriness, and insomnia, as well as inability to sit still, pacing, foot tapping. These symptoms may disappear spontaneously or respond to a reduction in dosage.
Neuroleptic Malignant Syndrome
Rare occurrences of neuroleptic malignant syndrome (NMS) have been reported. This potentially fatal syndrome is comprised of the symptom complex of hyperthermia, altered consciousness, muscular rigidity, and autonomic dysfunction (see WARNINGS).
Nausea and bowel disturbances, primarily diarrhea.
Rarely, cases of hepatotoxicity, characterized by such findings as jaundice and altered liver function tests, when metoclopramide was administered with other drugs with known hepatotoxic potential.
Urinary frequency and incontinence.
A few cases of neutropenia, leukopenia, or agranulocytosis, generally without clearcut relationship to metoclopramide. Methemoglobinemia, in adults and especially with overdosage in neonates (see OVERDOSAGE). Sulfhemoglobinemia in adults.
Visual disturbances. Porphyria.
Read the entire FDA prescribing information for Reglan (Metoclopramide)
Additional Reglan Information
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