Note: This document contains side effect information about carbidopa. Some of the dosage forms listed on this page may not apply to the brand name Lodosyn.
Applies to carbidopa: oral tablet
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
Applies to carbidopa: compounding powder, oral tablet
In general, side effects have not been observed when carbidopa (the active ingredient contained in Lodosyn) is administered alone. All side effects listed have been reported during concomitant use with levodopa or with carbidopa-levodopa therapy. The most common side effects included dyskinesias and nausea.
Symptoms related to neuroleptic malignant syndrome are characterized by fever or hyperthermia. Other findings include neurological symptoms such as muscle rigidity, involuntary movements, altered consciousness, mental status changes, other disturbances such as autonomic dysfunction, tachycardia, tachypnea, sweating, hyper- or hypotension, and laboratory findings such as elevated creatine phosphokinase, leukocytosis, myoglobinuria, and increased serum myoglobin.
A causal relationship with concomitant carbidopa (the active ingredient contained in Lodosyn) and levodopa and the reported side effect of convulsions has not been established.
Frequency not reported: Bradykinetic episodes ("on-off" phenomenon), convulsions, dizziness, dyskinesias such as choreiform, dystonic and other involuntary movements, headache, neuroleptic malignant syndrome, oculogyric crises, paresthesia, peripheral neuropathy, somnolence, syncope, taste alterations
Frequency not reported: Agitation, bruxism, confusion, dementia, depression with or without development of suicidal tendencies, dream abnormalities (including nightmares), impulse control symptoms, increased libido (including hypersexuality), insomnia, pathological gambling, psychotic episodes (including delusions, hallucinations and paranoid ideation)
Psychiatric side effects were reported with concomitant administration of levodopa or carbidopa-levodopa.
Frequency not reported: Cardiac irregularities, chest pain, hot flashes, hypertension, hypotension (including orthostatic hypotension), myocardial infarction, palpitation, phlebitis
Frequency not reported: Abdominal pain and distress, burning sensation of the tongue, constipation, dark saliva, development of duodenal ulcer, diarrhea, dry mouth, dyspepsia, dysphagia, flatulence, gastrointestinal bleeding, gastrointestinal pain, heartburn, hiccups, nausea, sialorrhea, vomiting
Frequency not reported: Abnormal Coombs test, agranulocytosis, decreased hemoglobin and hematocrit, decreased white blood cell count, hemolytic and nonhemolytic anemia, leukopenia, thrombocytopenia
Frequency not reported: Abnormal lactic dehydrogenase, anorexia, edema, elevated serum glucose, elevated serum potassium, weight gain, weight loss
Frequency not reported: Back pain, leg pain, muscle cramps, shoulder pain
Frequency not reported: Bizarre breathing patterns, cough, dyspnea, pharyngeal pain, upper respiratory infection
Frequency not reported: Alopecia, angioedema, bullous lesions (including pemphigus-like reactions), dark sweat, flushing, Henoch-Schonlein purpura, increased sweating, malignant melanoma, pruritus, rash, urticaria
Frequency not reported: Blurred vision, dilated pupils, diplopia
Frequency not reported: Dark urine, priapism, urinary frequency, urinary incontinence, urinary retention, urinary tract infection
Frequency not reported: Asthenia, faintness, fatigue, hoarseness, malaise, sense of stimulation
Frequency not reported: Abnormalities in alkaline phosphatase, SGOT (AST), SGPT (ALT), and bilirubin.
Frequency not reported: Abnormal blood urea nitrogen (BUN), increased serum creatinine and uric acid, protein and glucose in the urine, white blood cells, bacteria and blood in the urine,
Medically reviewed by BestRx Medical Team Last updated on 1/1/2020.
Source: Drugs.com Lodosyn