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  • Title: The Effect of Adding Memantine to Clonidine in Reducing Withdrawal Symptoms in Opioid-Dependent Patients: A Double-Blind Randomized Controlled Trial.
    Author: Kheirabadi G, Najafian N, Khodadadi F.
    Journal: J Clin Psychopharmacol; ; 41(6):644-649. PubMed ID: 34559090.
    Abstract:
    OBJECTIVE: Addiction is a complex condition and a brain disease manifested by compulsive substance use despite its harmful consequence. Addicted individuals have an intense focus on using substances. This study aimed to investigate the effect of adding memantine to clonidine and buprenorphine in reducing withdrawal symptoms, compared with placebo, in drug-dependent patients (opium and heroin). MATERIALS AND METHODS: In this double-blind, randomized clinical trial study, 60 patients using opium or heroin were assigned to the intervention (n = 30) and control (n = 30) groups. Both groups were treated with buprenorphine and clonidine at the same dose in the detoxification process. The intervention group received memantine 10 mg daily for 10 days and then 20 mg daily for 21 days, and the control group received a placebo prepared in the same shape and size as memantine tablets. The severity of withdrawal symptoms was measured using the Short Opioid Withdrawal Scale over 3 weeks. Data analysis was performed using SPSS and descriptive and inferential tests. RESULTS: The results showed that despite memantine's superiority in controlling some withdrawal symptoms such as feeling sick, stomach pain, muscle spasm, and feeling cold, no significant difference was found between the 2 groups. There was also no statistically significant difference between the 2 groups in the total score of symptoms. CONCLUSIONS: No specific advantage of memantine was found for reducing the symptoms of withdrawal syndrome in the present study. However, this drug was well tolerated without any evidence of serious or significant adverse effects.
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