Product title
Vendor
$19.99 | $24.99
Product title
Vendor
$19.99 | $24.99
Product title
Vendor
$19.99 | $24.99
Product title
Vendor
$19.99 | $24.99

Diltiazem HCl 120 mg Tablets for Heart Rhythm and Blood Pressure Support in Pets
Product Description
Diltiazem HCl 120 mg Tablets are a prescription-only oral calcium channel blocker for dogs and cats managing cardiac arrhythmias, hypertension, and hypertrophic cardiomyopathy. Blocking calcium entry into heart and blood vessel cells slows the heart rate and relaxes blood vessels to lower pressure. The 120 mg strength suits larger pets or those needing a higher daily maintenance dose as directed by a veterinarian.
Benefits
- Controls Supraventricular Tachycardia: Reduces abnormally fast heart rates in dogs and cats with SVT by cutting calcium influx into cardiac cells.
- Manages Atrial Fibrillation: Used with digoxin in dogs to manage atrial fibrillation and heart failure through ventricular rate control.
- HCM Support in Cats: Helps manage feline HCM by reducing heart muscle stiffness and supporting better cardiac function in affected cats.
- Higher-Strength Maintenance Dosing: Designed for larger pets or those needing a bigger daily dose, cutting down tablets needed at each administration.
- Long-Term Cardiac Maintenance: Ideal for daily at-home cardiac upkeep in stabilised pets, offering consistent heart rate and rhythm control over time.
- Blood Pressure Reduction: Reduces peripheral vascular resistance and cardiac afterload, helping manage hypertension in dogs and cats under veterinary care.
Ingredients
Active Ingredient
| Ingredient | Strength per Tablet |
| Diltiazem Hydrochloride (Active) | 120 mg |
How to Use
Dosage & Administration Instructions
Diltiazem HCl 120 mg Tablets are a prescription-only medication. A valid veterinarian prescription is required to purchase this product.
Please follow your veterinarian's instructions carefully for the dosage and administration of this medication.
Disclaimer: Dosage and administration of this medication must be determined by a licensed veterinarian. Always consult your veterinarian before administering or adjusting any prescription medication for your pet.
Hiding a tablet inside a soft Pill Pocket or wrapping it in a small piece of your pet's favorite treat makes giving this medication much easier and less stressful for both of you. A pill pocket treat is a simple, caring way to ensure your pet takes every dose without a struggle. Shop Pill Pockets for Dogs | Shop Pill Pockets for Cats
Additional Information
Precautions
- Contraindicated in Certain Conditions: Avoid in pets with severe hypotension, sick sinus syndrome, AV block, acute myocardial infarction, or pulmonary congestion.
- Caution in Heart Failure: In pets with heart failure, higher doses may further cut cardiac output through this product's negative inotropic effect.
- Elderly Pets: Senior pets are often more sensitive to this medication's cardiovascular effects; close monitoring is important throughout their treatment.
- Liver or Kidney Disease: Impaired liver or kidney function slows clearance of this medication, prolonging and strengthening its effects in treated pets.
- Pregnant or Nursing Animals: Use only when benefit clearly outweighs risk, as full safety in pregnant or nursing animals remains unconfirmed.
- Drug Interactions: Always notify your vet of current medications, as this product meaningfully shifts blood levels of digoxin, cyclosporine, and quinidine.
- Beta-Blocker and Anesthesia Caution: Using alongside beta-blockers or during general anesthesia increases the chance of bradycardia and serious cardiac reactions in pets.
- Prescription Only: Not FDA-approved for veterinary use; dispensing requires the direct order of a licensed veterinarian at all times.
Possible Side Effects
- Bradycardia: The most common reaction in dogs; an abnormally slow heart rate is a known effect at clinical doses.
- Vomiting: Most frequently reported in cats; nausea and vomiting can also show up in dogs during oral diltiazem therapy.
- Lethargy and Weakness: Low energy, depression, and weakness may occur in pets, often linked to blood pressure reduction during treatment.
- Loss of Appetite and Diarrhea: Reduced appetite and loose stools have been recorded in both dogs and cats receiving oral diltiazem therapy.
- Hypotension: Low blood pressure and associated weakness or collapse may develop, especially when paired with vasodilators or diuretics.
- Heart Block and Arrhythmias: Uncommon but serious; heart block and other arrhythmias may arise and require prompt veterinary attention without any delay.
- Overdose Signs: Heart rate drop, low blood pressure, vomiting, diarrhea, and collapse may signal overdose; seek emergency veterinary care without delay.
Storage Information
- Room Temperature Storage: Store between 68°F and 77°F (20°C to 25°C) indoors; short periods between 59°F and 86°F are acceptable.
- Protect from Light and Moisture: Keep the container firmly sealed and stored in a dark, dry spot to preserve product quality over time.
- Safe Storage Practice: Store this prescription product securely away from children and other household animals to prevent any accidental ingestion or contact.
NOTE: For generic medications, the product image shown may not reflect the actual item received. Generic medications can vary in size, color, and shape between orders depending on the manufacturer. Additionally, your medication may arrive packaged in a HardyPaw Pharmacy vial.
Shipping & Return
We offer ground, express, and priority delivery; see our shipping policy for details.
For return instructions or product concerns, please refer to our detailed refund policy.
Prescription items are NON-RETURNABLE and NON-REFUNDABLE.
Frequently Asked Questions
Q1: What is Diltiazem HCl 120 mg used for in dogs and cats?
Ans: These tablets manage cardiac arrhythmias including SVT and atrial fibrillation in dogs and cats, treat feline HCM, and reduce hypertension. As an oral product, they serve as the standard choice for daily at-home cardiac maintenance under veterinary supervision.
Q2: How does Diltiazem 120 mg differ from the 60 mg tablet?
Ans: Both carry the same active ingredient and work identically. The 120 mg tablet is the higher-strength option for larger pets or those needing a greater daily maintenance dose for adequate cardiac control. Your veterinarian will determine the correct strength and schedule.
Q3: Can Diltiazem 120 mg tablets be given with food?
Ans: Yes, these tablets work with or without food. If vomiting follows a dose on an empty stomach, pair future doses with a meal or treat. Always keep fresh water available for your pet throughout the full course of treatment.
Q4: What drugs interact with Diltiazem 120 mg tablets in pets?
Ans: Diltiazem can meaningfully affect blood levels of digoxin, cyclosporine, benzodiazepines, and quinidine. Cimetidine raises diltiazem levels while rifampin lowers them. Combining with beta-blockers or using under anesthesia raises bradycardia risk. Always tell your vet about every medication your pet takes.
Q5: Do I need a prescription for Diltiazem HCl 120 mg Tablets for my pet?
Ans: Yes, a valid veterinarian prescription must be in place before purchase or administration. Regular veterinary monitoring throughout treatment helps assess cardiac response and confirm whether any dose adjustments are needed as the condition is managed over time.