Prescribing overview
Amodip is a US-approved feline product; Norvasc remains a human formulation whose animal use is extra-label.
Key prescribing checks
- Review measured blood pressure, clinical perfusion and other vasodilators or antihypertensives. Excessive blood-pressure reduction can be clinically important.
- The human label highlights hepatic impairment because clearance is affected; the veterinary prescriber should consider liver disease when individualizing treatment.
- Known sensitivity to amlodipine is a label contraindication. Continue disease monitoring rather than assuming an improved number excludes an underlying kidney or endocrine disorder.
Uses by species
Approval and evidence apply to the named product, species, route and indication. An extra-label use requires its own prescribing assessment; a human indication is not an animal approval.
Cats
US veterinary approval: AmodipControl of systemic hypertension
Do not infer the same approval for human tablets.
Use / indication source ↗Pharmacology & pharmacokinetics
Mechanism and clinical role
L-type calcium-channel inhibition relaxes peripheral arterial smooth muscle and lowers vascular resistance.
Absorption, distribution, metabolism and elimination
Adult cats: bioavailability 68%, median peak 4 hours, half-life 53.3 hours.
SAFETY REFERENCE · PRODUCT & SPECIES SPECIFIC
Contraindications & cautions
Contraindications identify circumstances where the source says a product should not be used. Precautions call for assessment or monitoring. Interactions identify combinations to review. They are distinct categories; this summary does not replace a full interaction check or the current product label.
Norvasc
Human tablet label; these restrictions are not established veterinary prescribing guidance.
Contraindications · when not to use
- Known sensitivity to amlodipine.
Precautions & monitoring
- Hypotension, severe hepatic impairment and worsening angina/myocardial infarction are label warnings.
Amodip
US feline chewable amlodipine label, July 2026.
Contraindications · when not to use
- Amlodipine hypersensitivity.
Precautions & monitoring
- Not evaluated with systolic pressure above 200 mm Hg, hepatic disease, age below 11 months, or reproductive use. Monitor potassium in at-risk cats; hypotension and urinary changes are possible.
Safety sources checked: . Selected label information; independent veterinary or veterinary-pharmacy review remains pending. A label for dogs, cats, horses or humans does not establish safety for another species.
Adverse effects
Reported feline events include gastrointestinal signs, lethargy, hypotension and gingival overgrowth.
These are selected source-reported effects, not incidence estimates or an exhaustive list. Spontaneous postmarketing reports do not by themselves establish frequency or causality.
Dosing & administration
| Species & indication | Labeled regimen | Eligibility & source |
|---|---|---|
| Cats 2.5–10 kgSystemic hypertensionAmodip 1.25 mg chewable tablet | Standard 0.125–0.25 mg/kg/day: 2.5–5 kg 0.625 mg; 5.1–10 kg 1.25 mg Oral · Once daily Ongoing, response-guided | After 2 weeks inadequate response may justify doubling to 0.25–0.5 mg/kg/day per label table. Below 2.5 kg cannot be accurately dosed. Verify full dosing label ↗ |
Norvasc human doses are not animal instructions.
Extra-label prescribing and food-animal residue requirements are separate from labeled regimens. FDA extra-label-use guidance ↗
Drug & supplement interactions
This is a selected interaction reference, not an automated or comprehensive combination checker. Reconcile prescription drugs, nonprescription products, supplements and recent treatment changes.
Norvasc
Human tablet label; these restrictions are not established veterinary prescribing guidance.
- CYP3A inhibitors/inducers affect exposure or monitoring; sildenafil may increase hypotension; simvastatin, cyclosporine and tacrolimus exposure can increase.
Monitoring
Recheck blood pressure, renal status and potassium in at-risk cats.
Client counseling
Report weakness or oral changes; do not independently titrate.
This section supports the veterinary team's discharge discussion; it does not replace the product’s Client Information Sheet where one is required.
Storage & handling
Return unused half-tablet to blister for next-day administration.
Brands, formulations & ingredient identity
Active ingredients
Amlodipine
Other searchable names: Amlodipine besylate
Norvasc contains amlodipine besylate. Labels commonly express the tablet strength as the equivalent amount of amlodipine rather than the salt weight.
Do not merge combination blood-pressure products with this single-ingredient entry. Confirm every active ingredient and tablet strength before reconciling a patient’s list.
Human hypertension or angina labeling does not establish an animal indication, dose or target blood pressure. Record the veterinarian’s specific prescription alongside the ingredient identity.
Shared ingredients do not establish interchangeable concentrations, routes, release properties, species labeling or regional availability.
Norvasc
- Formulation
- Oral tablets
- Label / product scope
- Human product
Human-labeled amlodipine product; animal use is extra-label.
Product label / source ↗Amodip
- Formulation
- 1.25 mg chewable tablets
- Label / product scope
- Cats
Veterinary feline antihypertensive.
Product label / source ↗References & review status
Clinical reference updated October 16, 2026. Independent veterinary or veterinary-pharmacy review not yet completed. Evidence gaps remain explicitly identified; this page does not claim equivalence to a comprehensive, professionally reviewed veterinary formulary.
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