Trade Name Generic Name Manufacturer Akineton Biperiden Knoll Muscle relaxing Analexin Phenyramidol Salicylate Neisler medications Anectine Succinycholine Chloride B.W. & Co. patients with Bancaps Acetaminophin, Mephenesin Butabarbital Sodium West Myasthenia Gravis Deprol Meprobamate & Benscyyzine Wallace should avoid. Dioloxl Mephensein Camrick Disipal Orphenadrine Hydrochloride Riker Norman A. David, MD, University of Oregon Medical Equagesic Meprobamate & Ethobeptazine Wyeth School Pharmacology Equanitrate Meproamate & Pentserythritol Wyeth Department Equanil Meprobamate Wyeth Flaxedil Has Curare Effect, Galiamine, Triethiodide Camrick Halabar Mephenesin & Butabarbital Camrick Kemadrin Procycllidine Hydrocholoride B.W. & Co. Maolate Chlorphenesin Carbamate Upjohn Meprospan Meprobamate Wallace Medigesic Mephenesin Medics Metubine Dimethyl Tubocurzine Loside Lilly Milpath Meprobamate Wallace Milprem Meprobamate + Conjugated Estrogens Wallace Miltown Meprobamate Wallace Miltrate Meprobamate + Pentserythritol Wallace Mylaxen Hexafluroenium Bromide – Cholinesterase Inhibitor Neisler Norflax Orphenadrine Citrate Riker Norgesic Orphenadrine + Aspirin + Phenacetin Riker Parglex Chlorzoxazone McNeil Parafon Forte Chlorzoxazone & Acetaminophen McNeil Phenoxene Chlorzoxazone Hydrochloride Pitman-Moore Quelicin Succinylcholine Abbott Quinine Several Different Salts Lilly Rela Carisoprodol Schering Robaxin Methocarbamal + Aspirin A.H. Robins Robaxisal Methocarbamal + Phenephen A.H. Robins Sinaxar Stramate Armor Skelaxin Metaxalone A.H. Robins Soma Carisprodol Wallace Somacort Carisprodol + Predisalone Wallace Sucostrin Succinylcholine Chloride Squibb Syncurine Synthetic Curare Burroughs & Welcome Tolseram Mephensin Carbamate Squibb Trancopal Cholrmezanone Winthrop May Cause Weakness Drugs Implicated To Be Harmful To MG Patients Antibiotics Beta Blockers Aminoglycosides Atenolol Ciprofloxacin Labetalol Fluoroquinolones Metrprolol Gentamicin Nadolol Kanamycin Oxprenolol Ketolides Practolol Neomycin Propranolo Netilmicin Timolol Nitrofurantion Norfloxacin Other Cardiac Drugs Ofloxacin Bretylium Streptomycine Procainamide Sulfonamides Trimehaphan Telithromycin (Ketek) Calcium Channel Blocker Tetracyclines Verapamil Tobramycin Anticonvulsants Other Antibiotics Barbiturates Amino Acid Antibiotics Carbamazepine Azithromycin Ethosuximide Clarithromycin Gabapentin Macrolides Phenytoin Nitrofurantoin Psychiatric Drugs Penicillins Amitriptyline Ritonavir Sulfonamides Amphetamines Tetracyclines Haloperidol Quinolones Imipramine Chloroquine Lithium Carbonate Fluoquinolone Antibiotic Phenothiazines Qinidine Quinine Opthalmologic Drugs Betaxolol Hydrochloride Cardiac Medications Echothiophate Atenolol Timolol Labetalol Metoprolol Misc. Drugs Procainamide Cisplatin Propranolol Fludarabine Verapamil Interleukin-2 Antimalarial Medications Other Neurologic Drugs Chloroquine Glatiramer Acetate Quinine Riluzole Reviewed for publication by the Medical Advisory Board of the Myasthenia Gravis Association of Western Pennsylvania. 2009 .