The risk or severity of adverse effects can be increased when Triazolam is combined with Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Clemastine. The risk or severity of adverse effects can be increased when Terconazole is combined with Gabapentin. Droperidol may increase the central nervous system depressant (CNS depressant) activities of Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Prazepam. The risk or severity of adverse effects can be increased when Sinefungin is combined with Gabapentin. The risk or severity of adverse effects can be increased when Methadone is combined with Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Pramocaine. The therapeutic efficacy of Gabapentin can be decreased when used in combination with Calcium Phosphate. The risk or severity of adverse effects can be increased when Gabapentin is combined with Benperidol. The risk or severity of adverse effects can be increased when Gabapentin is combined with Difenoxin. Bucindolol may increase the hypotensive activities of Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Triflupromazine. The risk or severity of adverse effects can be increased when Gabapentin is combined with Loprazolam. Gabapentin may increase the hypotensive activities of Nitroprusside. The risk or severity of adverse effects can be increased when Gabapentin is combined with Levodopa. The serum concentration of Fosphenytoin can be increased when it is combined with Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Lithium. The risk or severity of adverse effects can be increased when Gabapentin is combined with Clomipramine. The risk or severity of adverse effects can be increased when Gabapentin is combined with Trazodone. The risk or severity of adverse effects can be increased when Gabapentin is combined with Perospirone. The risk or severity of adverse effects can be increased when Efinaconazole is combined with Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Carisoprodol. The risk or severity of adverse effects can be increased when Bafilomycin A1 is combined with Gabapentin. The risk or severity of adverse effects can be increased when Hydromorphone is combined with Gabapentin. The risk or severity of adverse effects can be increased when Tolnaftate is combined with Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Ketazolam. The risk or severity of adverse effects can be increased when Gabapentin is combined with Flibanserin. The risk or severity of adverse effects can be increased when Candicidin is combined with Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Brotizolam. The risk or severity of adverse effects can be increased when Gabapentin is combined with Tiapride. The risk or severity of adverse effects can be increased when Tramadol is combined with Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Amisulpride. The risk or severity of adverse effects can be increased when Gabapentin is combined with Methapyrilene. The risk or severity of adverse effects can be increased when Gabapentin is combined with Barbital. The risk or severity of adverse effects can be increased when Gabapentin is combined with Sertraline. The risk or severity of adverse effects can be increased when Gabapentin is combined with Gabapentin Enacarbil. The risk or severity of adverse effects can be increased when Perphenazine is combined with Gabapentin. Dronabinol may increase the central nervous system depressant (CNS depressant) activities of Gabapentin. The risk or severity of adverse effects can be increased when Sufentanil is combined with Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Iloperidone. The risk or severity of adverse effects can be increased when Myxothiazol is combined with Gabapentin. Tapentadol may increase the central nervous system depressant (CNS depressant) activities of Gabapentin. The risk or severity of adverse effects can be increased when Haloprogin is combined with Gabapentin. The risk or severity of adverse effects can be increased when Terbinafine is combined with Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Quetiapine. The risk or severity of adverse effects can be increased when Salicylhydroxamic Acid is combined with Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Cerivastatin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Melperone. The risk or severity of adverse effects can be increased when Gabapentin is combined with Duloxetine. The risk or severity of adverse effects can be increased when Gabapentin is combined with Glutethimide. The risk or severity of adverse effects can be increased when Butoconazole is combined with Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Valproic Acid. The risk or severity of adverse effects can be increased when Cyclosporine is combined with Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Lofentanil. The serum concentration of Gabapentin can be decreased when it is combined with Efavirenz. The serum concentration of Gabapentin can be decreased when it is combined with Orlistat. The risk or severity of adverse effects can be increased when Gabapentin is combined with Desloratadine. Nabilone may increase the central nervous system depressant (CNS depressant) activities of Gabapentin. The risk or severity of adverse effects can be increased when Flupentixol is combined with Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Methadyl Acetate. The risk or severity of adverse effects can be increased when Gabapentin is combined with Rosuvastatin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Fexofenadine. The metabolism of Gabapentin can be decreased when combined with Telithromycin. Sodium oxybate may increase the central nervous system depressant (CNS depressant) activities of Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Doxepin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Dantrolene. The risk or severity of adverse effects can be increased when Gabapentin is combined with Ethyl carbamate. The risk or severity of adverse effects can be increased when Gabapentin is combined with Methsuximide. The risk or severity of adverse effects can be increased when Gabapentin is combined with Tetracaine. Gabapentin may increase the sedative activities of Pramipexole. The risk or severity of adverse effects can be increased when Gabapentin is combined with Ondansetron. The risk or severity of adverse effects can be increased when Gabapentin is combined with Lamotrigine. The risk or severity of adverse effects can be increased when Gabapentin is combined with Chlorphenamine. Gabapentin may increase the sedative activities of Rotigotine. The risk or severity of adverse effects can be increased when Gabapentin is combined with Fluoxetine. The risk or severity of adverse effects can be increased when Gabapentin is combined with 7-Nitroindazole. The risk or severity of adverse effects can be increased when Gabapentin is combined with Flunarizine. The risk or severity of adverse effects can be increased when Gabapentin is combined with Zotepine. The risk or severity of adverse effects can be increased when Gabapentin is combined with Fospropofol. The risk or severity of adverse effects can be increased when Clozapine is combined with Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Amoxapine. The risk or severity of adverse effects can be increased when Gabapentin is combined with Ethyl chloride. The risk or severity of adverse effects can be increased when Gabapentin is combined with Brexpiprazole. The risk or severity of adverse effects can be increased when Diazepam is combined with Gabapentin. The risk or severity of adverse effects can be increased when Nitroxoline is combined with Gabapentin. The risk or severity of adverse effects can be increased when Lorazepam is combined with Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Melatonin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Cyproheptadine. The risk or severity of adverse effects can be increased when Isoflurane is combined with Gabapentin. The risk or severity of adverse effects can be increased when Butabarbital is combined with Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Sepranolone. The risk or severity of adverse effects can be increased when Gabapentin is combined with Ramelteon. The risk or severity of adverse effects can be increased when Gabapentin is combined with Ketobemidone. The risk or severity of adverse effects can be increased when Gabapentin is combined with Benzocaine. The risk or severity of adverse effects can be increased when Gabapentin is combined with Nitrazepam. The risk or severity of adverse effects can be increased when Gabapentin is combined with Alphaprodine. The risk or severity of adverse effects can be increased when Gabapentin is combined with Tetrodotoxin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Gamma Hydroxybutyric Acid. The risk or severity of adverse effects can be increased when Gabapentin is combined with Bromperidol. The risk or severity of adverse effects can be increased when Brefeldin A is combined with Gabapentin. The serum concentration of Gabapentin can be decreased when it is combined with Rifampicin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Levomethadyl Acetate. The risk or severity of adverse effects can be increased when Gabapentin is combined with Atorvastatin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Brompheniramine. The therapeutic efficacy of Gabapentin can be decreased when used in combination with Yohimbine. The risk or severity of adverse effects can be increased when Gabapentin is combined with Butalbital. The risk or severity of adverse effects can be increased when Gabapentin is combined with Tolcapone. The metabolism of Gabapentin can be decreased when combined with Solithromycin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Etorphine. The risk or severity of adverse effects can be increased when Salicylic acid is combined with Gabapentin. The metabolism of Gabapentin can be decreased when combined with Kitasamycin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Dexmedetomidine. The serum concentration of Gabapentin can be decreased when it is combined with Almasilate. The risk or severity of adverse effects can be increased when Gabapentin is combined with Opium. The risk or severity of adverse effects can be increased when Meprobamate is combined with Gabapentin. The serum concentration of Gabapentin can be decreased when it is combined with Sodium bicarbonate. The serum concentration of Gabapentin can be decreased when it is combined with Bismuth Subcitrate. Gabapentin may increase the central nervous system depressant (CNS depressant) activities of Methotrimeprazine. The risk or severity of adverse effects can be increased when Gabapentin is combined with Procaine. The risk or severity of adverse effects can be increased when Reserpine is combined with Gabapentin. The risk or severity of adverse effects can be increased when Pentamidine is combined with Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Molindone. Hydroxyzine may increase the central nervous system depressant (CNS depressant) activities of Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Methaqualone. The risk or severity of adverse effects can be increased when Gabapentin is combined with Entacapone. The risk or severity of adverse effects can be increased when Midazolam is combined with Gabapentin. The risk or severity of adverse effects can be increased when Gabapentin is combined with Clonazepam. The risk or severity of adverse effects can be increased when Gabapentin is combined with Ezogabine. The risk or severity of adverse effects can be increased when Gabapentin is combined with Estazolam.