Side Effects of Enalapril in Dogs

By Jennifer Gittins
Enalapril, also known by brand names such as Vasotec or Enacard, is a medication used in both humans and dogs to treat high blood pressure and congestive heart failure. Like any medication, enalapril has the potential to cause side effects.


Certain medications such as nonsteroidal anti-inflammatories may cause adverse reactions when mixed with enalapril. An article by PetPlace notes that owners should discuss all medications their dog is on with the veterinarian before giving their dog enalapril.

Blood Flow

Some dogs taking enalapril may become weak or have low blood pressure due to the relaxing effects on the blood vessels. 1-800-PetMeds, a supplier of this medication, notes that enalapril can also cause easy bruising or bleeding. In some cases, blood flow to the kidneys can become affected and lead to kidney failure.

Gastrointestinal Effects

Enalapril can also cause several side effects involving the gastrointestinal tract. This includes loss of appetite, diarrhea, vomiting, nausea and increased urination.

Respiratory System

Some dogs may experience side effects that relate to their respiratory system. This includes coughing, swelling or difficulty breathing.

Allergic Reactions

Allergic reactions due to enalapril may include facial swelling, hives, mild itching or a skin rash.
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