PHENYKEM 50MG INJECTION
Phenytoin50 mg
Alkem Laboratories
Phenytoin is available as extended-release (long-acting) capsule, a chewable tablet, and a suspension (liquid) orally. The chewable tablet and suspension are usually taken two or three times a day. Phenytoin should be taken with food. When administering to patients on nasogastric or other enteral feeds, do not administer feeds 2 hr before or after a dose. Be consistent throughout therapy in relation to feed times. Do not switch dosage forms/brands with out prior consideration.
Store protected from moisture at temperature not exceeding 30°C.
Porphyria Avoid parenteral use in sinus bradycardia Sino-atrial block, second- and third-degree heart block Stokes-Adams syndrome Pregnancy
Asthma : According to WHO - Asthma attacks all age groups but often starts in childhood. It is a disease characterized by recurrent attacks of breathlessness and wheezing, which vary in severity and frequency from person to person. In an individual, they may occur from hour to hour and day to day. This condition is due to inflammation of the air passages in the lungs and affects the sensitivity of the nerve endings in the airways so they become easily irritated. In an attack, the lining of the passages swell causing the airways to narrow and reducing the flow of air in and out of the lungs. Classification of drugs 1. Bronchodialators A. Sympathomimetics : Adrenaline, Ephedrine, Isoprenaline, Salbutamol, Terbutaline, Bambuterol, Salmetrol, Formoterol. B. Methylxanthines : Theophylline, Aminophylline, Hydroxyethyl theophylline. C. Anticholinergics: Atropine, Ipratropium bromide 2. Leukotrienne antagonis - Montelukast, Zafirlukast 3. Mast cell stabilizers : Sodium cromglycate, Nedocromil,Krtotifen. 4. Corticosteroids : a) Systemic : Hydrocortisone, Prednisolone and others b) Inhalational : Beclomethasone dipropionate, Budesonide, Flunisolide
Effects with other sedative drugs or ethanol may be potentiated. Enhances toxic effects of paracetamol, lithium. Increased risk of osteomalacia with acetazolamide. Decreased serum levels/effects with acyclovir, antineoplastics, benzodiazeines, ciprofloxacin, CYP2C9 inducers (e.g. carbamazepine), CYP2C19 inducers (e.g. rifampin), folic acid, vigabatrin. Increased serum concentrations with allopurinol, capecitabine, cimetidine, CYP2C9 inhibitors (e.g. fluconazole), CYP2C19 inhibitors (e.g. delavirdine), disulfiram, methylphenidate, metronidazole, omeprazole, SSRI, trazodone, trimethoprim. Increases metabolism of antiarrhythmics, anticonvulsants, antipsychotics, beta-blockers, calcium channel blockers, chloramphenicol, corticosteroids, doxycycline, oestrogens, HMG-CoA reductase inhibitors, methadone, theophylline, TCAs. Decreases levels/effects of clozapine, ciclosporin, tacrolimus, CYP2B6 substrates (e.g. bupropion, selegiline), CYP2C8 substrates (e.g. amiodarone).
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It is any effect of a drug, chemical, or other medicine that is in addition to its intended effect, especially an effect that is harmful or unpleasant.