Lamotrigine Orally Disintegrating Tablets and Risperidone Orally Disintegrating
Determining the interaction of Lamotrigine Orally Disintegrating Tablets and Risperidone Orally Disintegrating and the possibility of their joint administration.
In the database of official manuals used in the service creation an interaction registered by statistical results of studies was found, which can either lead to negative consequences for the patient health or strengthen a mutual positive effect. A doctor should be consulted to address the issue of joint drug administration.
Consumer:Using risperiDONE together with lamoTRIgine can increase your blood levels of risperiDONE. This can cause side effects such as excessive drowsiness, dizziness, increase in heart rate, seizures, and tremors. Talk with your doctor before using these medications together, and report any side effects promptly. You may need a dose adjustment or special tests to safely take both medications. Avoid driving until you know how these medications will affect you. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
Professional:MONITOR: A case report suggests that lamotrigine may increase the plasma concentrations of risperidone. The mechanism of interaction is unknown. The case patient was a 26-year-old woman with schizophrenia who had been treated with clozapine 550 mg daily for 5 years and risperidone 8 mg daily for 4 weeks. Lamotrigine was added due to inadequate response. The patient's risperidone plasma level was 69 ng/mL while receiving lamotrigine 175 mg/day; 284 ng/mL when lamotrigine was increased to 200 mg/day; and 412 ng/mL at lamotrigine 225 mg/day. The patient complained of dizziness and tiredness. Risperidone dosage was reduced to 2 mg/day and discontinued a week later. Pharmacodynamically, additive central nervous system depression may also occur when these drugs are used in combination, resulting in impairment of judgment, thinking, and/or psychomotor skills.
MANAGEMENT: Until more data are available, caution is advised if risperidone must be used in combination with lamotrigine. Pharmacologic response and serum risperidone levels should be monitored more closely whenever lamotrigine is added to or withdrawn from therapy, and the risperidone dosage adjusted as necessary. Patients should be advised to notify their physician if they experience potential signs and symptoms of risperidone toxicity such as excessive sedation, dizziness, tachycardia, seizures, and extrapyramidal symptoms. Ambulatory patients should also be counseled to avoid activities requiring mental alertness (e.g., driving or operating hazardous machinery) until they know how these agents affect them.
- Bienentreu SD, Kronmuller KT "Increase in risperidone plasma level with lamotrigine." Am J Psychiatry 162 (2005): 811-2
Generic Name: lamotrigine
Brand name: Lamictal, Lamictal ODT, Lamictal XR, Subvenite, Lamictal CD, LaMICtal Starter Kit, LaMICtal ODT Patient Titration Kit, LaMICtal XR Patient Titration Kit, LamoTRIgine Starter Kit, Subvenite Starter Kit, Lamictal, Lamictal ODT, Lamictal XR
Synonyms: Lamotrigine, LamoTRIgine
Generic Name: risperidone
Brand name: Risperdal, Perseris, Risperdal Consta, Risperdal Consta, Risperdal M-Tab
Synonyms: Risperidone, RisperiDONE
In the course of checking the drug compatibility and interactions, data from the following reference sources was used: Drugs.com, Rxlist.com, Webmd.com, Medscape.com.
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