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Immiticide 5 Injection 50mg Vials

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Immiticide 5 Injection 50mg Vials


In Stock. Usually Ships in 2-3 weeks.

Shipping weight = 0.00 lb.

All medications are filled by Pet's Choice Pharmacy. More information. Can only be shipped in the United States.
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Sometimes, manufacturers require that products be advertised only at their suggested prices. When we choose to sell these items for less, we display the sale price only in the cart. To see the price, click Add to Cart.

Product Summary:

Prescription items are NON-RETURNABLE and NON REFUNDABLE

Immiticide 5 Injection 50mg Vials
IMMITICIDE Sterile Powder is indicated for the treatment of stabilized Class 1a, 2b, and 3c heartworm disease caused by immature (4 month-old, stage L5) to mature adult infections of Dirofilaria immitis in dogs.

Heartworm Disease Classification: The following parameters were used to classify the dogs in the clinical field trials for IMMITICIDE. Other parameters may be considered. As a general rule, conservative treatment should be employed since heartworm disease is serious and potentially fatal. If there is evidence of a high worm burden, patients should be categorized as Class 3.

a Class 1: Patients in this category are characterized as having asymptomatic to mild heartworm disease. No radiographic signs or signs of anemia are evident. Patients with mild disease may have subjective signs such as a general loss of condition, fatigue on exercise, or occasional cough; however, no objective radiographic or other abnormal laboratory parameters will be present.

b Class 2: Patients in this category are characterized as having moderate heartworm disease. Radiographic signs or signs of anemia [Packed Cell Volume (PCV) less than 30% but greater than 20%, or other hematologic parameters below normal] are evident. Mild proteinuria (2+) may be present. Radiographic signs may include right ventricular enlargement, slight pulmonary artery enlargement, or circumscribed perivascular densities plus mixed alveolar/interstitial lesions. Patients may be free of subjective clinical signs or may have a general loss of condition, fatigue on exercise, or occasional cough. If necessary, patients should be stabilized prior to treatment.

c Class 3: Patients in this category are characterized as having severe heartworm disease. These patients have a guarded prognosis. Subjective signs of disease may include cardiac cachexia (wasting), constant fatigue, persistent cough, dyspnea, or other signs associated with right heart failure such as ascites and/or jugular pulse. Radiographic signs may include right ventricular enlargement or right ventricular plus right atrial enlargement, severe pulmonary artery enlargement, circumscribed to chronic mixed patterns and diffuse patterns of pulmonary densities or radiographic signs of thromboembolism. Signs of significant anemia (PCV <20% or other hematologic abnormalities) may be present. Proteinuria (> 2+) may be present. Patients may have only moderate clinical signs and significant laboratory or radiographic alterations or they may have significant clinical signs with only moderate laboratory and radiographic signs and be categorized as Class 3. Patients in Class 3 should be stabilized prior to treatment and then administered the alternate dosing regime
IMMITICIDE Sterile Powder contains 50.0 mg melarsomine dihydrochloride and 33.75 mg glycine USP.
1 vial: when reconstituted with 2 mL of sterile water for injection (provided) contains 25 mg/mL of active ingredient.
 For use in dogs only. Safety for use in breeding animals and lactating or pregnant bitches has not been determined.

Human Warnings

Keep this and all medications out of the reach of children. Avoid human exposure. Wash hands thoroughly after use or wear gloves. Potentially irritating to eyes. Rinse eyes with copious amounts of water if exposed. Consult a physician in cases of accidental exposure by any route (dermal, oral, or by injection). The Material Safety Data Sheet (MSDS) contains more detailed occupational safety information. To report adverse effects, obtain an MSDS or for assistance, contact Merial at 1-888-637-4251, option 3.

IMMITICIDE Dosage And Administration

IMMITICIDE should be administered ONLY by deep intramuscular injection in the epaxial (lumbar) muscles in the third through fifth lumbar region (see graphic). DO NOT ADMINISTER AT ANY OTHER SITE. Avoid superficial injection or leakage. Use a 23 gauge 1 inch needle for dogs equal to or less than 10 kg (22 lb) in weight. Use a 22 gauge 1 1/2 inch needle for dogs greater than 10 kg (22 lb). Use alternating sides with each administration. If repeated administrations are warranted avoid injecting at the same lumbar location. Record the location of the first injection(s) in the patient’s medical record for future reference.

Disease Classification: It is vital to classify the severity of heartworm disease to apply the appropriate dosage regime for IMMITICIDE (See INDICATIONS).

Class 1 and 2:

If necessary, dogs should be stabilized prior to treatment. IMMITICIDE should be administered intramuscularly in the lumbar (L3 - L5) muscles at a dose of 2.5 mg/kg twice, 24 hours apart (See Dosing Table). Four months following treatment, a second treatment series (2.5 mg/kg twice, 24 hours apart) can be elected taking into consideration the response to the first IMMITICIDE treatment and the condition, age, and use of the dog. Worms that were too young to be killed by the first treatment series, i.e., < 4 months, may be killed by a second treatment series.Class 3:

Alternate Dosing Regime: Dogs with severe (Class 3) heartworm disease should be stabilized prior to treatment and then dosed intramuscularly in the lumbar (L3 - L5) muscles with a single injection of 2.5 mg/kg then approximately 1 month later with 2.5 mg/kg administered twice 24 hours apart (See Dosing Table).

Dosing Table: Care must be taken to administer the proper dose. Accurately weigh the dog and calculate the volume to be injected based on the dose of 2.5 mg/kg (1.1 mg/lb). This is equivalent to 0.1 mL/kg (0.045 mL/lb). The following table should be used as a guide to ensure that the proper volume has been calculated.














































*Limited data were collected on the administration > 5.0 mL at a single injection site.

Preparation: IMMITICIDE should be aseptically reconstituted only with 2.0 mL of sterile water for injection (provided as 2.0 mL sterile water for injection USP). This provides 2.5 mg melarsomine dihydrochloride per 0.1 mL of injectable solution. Two 50 mg vials will be required for dogs weighing > 20 kg and 40 kg and 3 vials will be required for dogs > 40 kg and 60 kg. Use immediately. Reconstituted solution may be used within 24 hours if refrigerated and kept from light.

Treatment Response: A baseline can be established pre-treatment by using commercially available in-office heartworm antigen test kits prior to treatment. Treatment response can be assessed best by heartworm antigen testing applied 4 months after treatment. A successful treatment is determined to be conversion from an antigen positive to an antigen negative status. In dogs with signs of heartworm disease, gradual improvement should be observed as the long-term effects of the heartworm infection resolve. Some dogs may have chronic effects that will not totally resolve.

Storage Conditions

Store upright at room temperature. After reconstitution, solutions should be stored under refrigeration and kept from light in the original packaging for 24 hours. Do not freeze reconstituted solution.

Item Number Model Number UPC
E024035 012MER-MEISP
Additional Information:

Please Note: 

This prescription product or therapeutic food is fulfilled by Pet’s Choice Pharmacy, Inc. A licensed pharmacy in all states, excluding North Carolina. Pet’s Choice is actively working with North Carolina Board of Pharmacy and expect to be licensed to fill prescriptions in 2018. We can only ship to US states. 


To order prescription products or therapeutic foods must have an existing, valid veterinarian-client-patient relationship.  Prescription requests are subject to a Drug Utilization Review by a licensed pharmacist for patient safety.


All prescription products (excluding therapeutic food) are FDA approved, or EPA licensed, to be sold in the US.

Prescription products cannot be returned.  

How do you fill my pet’s prescription order?

We understand how important your pet’s health is to you. That’s why we partnered with Pet’s Choice Pharmacy, a fully accredited Vet-VIPPS national pharmacy. Located in Belleville, Kansas, Pet’s Choice Pharmacy is a trusted partner that is fully licensed to distribute pharmaceutical products in all states, excluding North Carolina. This licensing ensures that they adhere to the proper standards for handling and dispensing pet medications directly to you, at a significant savings.


How does the prescription process happen?

Pet’s Choice Pharmacy will contact your veterinarian directly to obtain the necessary information and approval to dispense the medications ordered. It is helpful to have veterinarian’s name, phone number, and fax number when you place your order so we can speed up contact process with veterinarian. After prescription is verified, your medication will be safely dispensed and shipped directly to you. If you veterinarian does not participate or support online sales, you can mail your script to us directly.

Pet’s Choice Pharmacy  

814 K Street

Belleville, KS 66935 Order #


Are we a licensed pharmacy?

The National Association of Boards of Pharmacy (NABP) has approved us as an Internet Advertiser of prescription drug-related services through its e-Advertiser Approval program. We are not a licensed pharmacy; however, we are permitted to display pet medications on our site and have prescription orders fulfilled and delivered through our trusted partner, Pet’s Choice Pharmacy, a full Vet-VIPPS accredited pharmacy. This gives you a trusted and affordable alternative to purchase the medications your beloved pets need to maintain quality of life and overall health.

If you have any medical questions about your pet, we suggest you speak with your veterinarian before administering any medication.  If you would like to speak with our pharmacy support team about your order, you can contact us directly Monday-Friday 9 am-5 pm EST at (877) 574-2267. If you veterinarian needs to fax your prescription, our fax number is (866) 787-1177.


** By law we can only accept a prescription faxed from your veterinarian or we must have the original prescription**

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