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Drug Details

  • Drug Name: Norvasc
  • Common Name: Norvasc®
  • Drug Type: Calcium channel blocker
  • Used For: Blood pressure regulation
  • Species: Cats
  • Available Forms: 2.5 mg, 5 mg and 10 mg tablets
  • FDA Approved: No

General Description


Amlodipine besylate is a calcium channel blocker that is used to treat hypertension (high blood pressure) in cats.


How It Works


Amlodipine works by relaxing the smooth muscle in the blood vessels. Nerve signals cause calcium to be released, which contracts muscles. Without calcium, muscles are unable to contract and blood vessels are unable to constrict. When Amlodipine blocks calcium channels, the blood vessels are forced to relax, lowering the pressure inside them.


Storage Information


Keep in a tightly sealed container at room temperature.


Missed Dose?


Missing even one dose can lead to heightened blood pressure, which may by dangerous to your pet. If you do miss a dose, give the dose as soon as possible. If it is almost time for the next dose, skip the missed dose, and continue with the regular schedule. Do not give your pet two doses at once.


Side Effects and Drug Reactions


Amlodipine besylate may result in these side effects:

  • Loss of appetite
  • Low blood pressure
  • Lethargy
  • Increase in heart rate
  • Swollen gums
  • Weight loss


Amlodipine besylate may react with these drugs:

  • Other blood pressure reducers
  • Blood thinners
  • Fentanyl
  • Furosemide
  • Enalapril
  • Propranolol



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