Procainamide (Intravenous Route)

Procainamide injection is used to treat irregular heartbeats and to slow an overactive heart. When the heart has a normal heartbeat (rhythm), it will work more efficiently. Procainamide works by slowing the nerve impulses in the heart and reducing the sensitivity of heart tissues.

This medicine is available only with your doctor's prescription.

The oral dosage forms of this medicine are no longer available in the United States.

This product is available in the following dosage forms:

• Solution

Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

No information is available on the relationship of age to the effects of procainamide injection in geriatric patients. However, elderly patients are more likely to have age-related kidney problems, which may require an adjustment in the dose for patients receiving procainamide injection.

Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.

• Amifampridine
• Amisulpride
• Bepridil
• Cisapride
• Dronedarone
• Fingolimod
• Grepafloxacin
• Levomethadyl
• Mesoridazine
• Pimozide
• Piperaquine
• Sparfloxacin
• Terfenadine
• Thioridazine
• Vernakalant
• Ziprasidone

Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

• Acecainide
• Ajmaline
• Alcuronium
• Alfuzosin
• Amiodarone
• Amitriptyline
• Amoxapine
• Anagrelide
• Apomorphine
• Aprindine
• Aripiprazole
• Arsenic Trioxide
• Artemether
• Asenapine
• Astemizole
• Atracurium
• Azithromycin
• Bupropion
• Buserelin
• Chloral Hydrate
• Chloroquine
• Chlorpromazine
• Ciprofloxacin
• Cisatracurium
• Citalopram
• Clarithromycin
• Clomipramine
• Clozapine
• Crizotinib
• Dabrafenib
• Dasatinib
• Degarelix
• Delamanid
• Desipramine
• Deslorelin
• Disopyramide
• Dofetilide
• Dolasetron
• Domperidone
• Donepezil
• Doxacurium
• Doxepin
• Droperidol
• Efavirenz
• Enflurane
• Erythromycin
• Escitalopram
• Flecainide
• Fluconazole
• Fluoxetine
• Foscarnet
• Gallamine
• Gatifloxacin
• Gemifloxacin
• Gonadorelin
• Goserelin
• Granisetron
• Halofantrine
• Haloperidol
• Halothane
• Hexafluorenium
• Histrelin
• Hydroquinidine
• Hydroxychloroquine
• Hydroxyzine
• Ibutilide
• Iloperidone
• Imipramine
• Isoflurane
• Isradipine
• Ivabradine
• Ketoconazole
• Lapatinib
• Leuprolide
• Levofloxacin
• Lidocaine
• Lidoflazine
• Lopinavir
• Lorcainide
• Lumefantrine
• Mefloquine
• Methadone
• Metocurine
• Metronidazole
• Mifepristone
• Mivacurium
• Moricizine
• Moxifloxacin
• Nafarelin
• Nalidixic Acid
• Nilotinib
• Norfloxacin
• Nortriptyline
• Octreotide
• Ofloxacin
• Ondansetron
• Paliperidone
• Pancuronium
• Pasireotide
• Pazopanib
• Pentamidine
• Perflutren Lipid Microsphere
• Pimavanserin
• Pipecuronium
• Pirmenol
• Pitolisant
• Posaconazole
• Prilocaine
• Probucol
• Procainamide
• Promethazine
• Propafenone
• Protriptyline
• Quetiapine
• Quinidine
• Quinine
• Risperidone
• Rocuronium
• Salmeterol
• Sertindole
• Sevoflurane
• Sodium Phosphate
• Sodium Phosphate, Dibasic
• Sodium Phosphate, Monobasic
• Solifenacin
• Sorafenib
• Sotalol
• Spiramycin
• Succinylcholine
• Sulfamethoxazole
• Sulpiride
• Sultopride
• Sunitinib
• Tacrolimus
• Telavancin
• Telithromycin
• Tetrabenazine
• Tizanidine
• Toremifene
• Trazodone
• Trifluoperazine
• Trimethoprim
• Trimipramine
• Triptorelin
• Tubocurarine
• Vandetanib
• Vardenafil
• Vasopressin
• Vecuronium
• Vemurafenib
• Vinflunine
• Voriconazole
• Zolmitriptan
• Zotepine
• Zuclopenthixol

Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

• Cimetidine