Eclampsia in Cats

What Is Eclampsia in Cats?

Eclampsia in cats, also called lactation tetany or milk fever, is a dangerous drop in blood calcium levels. It typically strikes nursing queens, often during peak milk production, around 2 to 3 weeks after giving birth.

Without fast treatment, eclampsia can lead to seizures, coma, and death. Knowing the signs and responding early can save lives.

What Causes Eclampsia in Cats?

When a lactating queen produces milk, her body uses calcium rapidly. If she doesn’t get enough through diet or her body can’t keep up, her blood calcium drops.

Common risk factors:

Large litters placing high demand on milk supply
Poor-quality diet or insufficient calcium intake
First-time mothers
Toy or small breeds (more common in dogs, but possible in cats)
Supplementing calcium before birth, which can impair natural regulation

Signs of Eclampsia in Cats

Eclampsia progresses fast. Watch for:

Muscle twitching or tremors
Restlessness or pacing
Panting
Weakness or wobbly walking
Fever
Seizures
Collapse

These symptoms often appear suddenly. Any queen showing signs should see a vet straight away.

What to Do in an Emergency

Call a vet immediately. Time is critical.
Keep the queen calm and cool. Limit handling and noise.
Separate the kittens temporarily. Begin bottle feeding to reduce stress on the mother.
Do not administer calcium at home unless directed by a vet.

Treatment often includes IV calcium, fluids, and monitoring, followed by oral supplementation and dietary adjustments.

How Cat Breeders Can Prevent Eclampsia

Feed a high-quality, balanced diet with appropriate calcium-to-phosphorus ratios.
Avoid calcium supplements during pregnancy unless prescribed.
Monitor the queen’s weight and appetite after birth.
Weigh kittens daily. Rapid growth means higher demand on the queen.
Provide frequent, nutrient-dense meals during lactation.

Caring for Kittens During Queen’s Recovery

If the queen is removed from the litter during recovery:

Use a kitten milk replacer (not cow’s milk)
Follow safe bottle-feeding guidelines
Track weights daily
Encourage toileting by gently wiping the perineal area with a damp cloth

Should the Queen Be Bred Again?

Some cats recover fully and go on to raise future litters. Others may face recurring eclampsia and may need to be retired from breeding. Always consult a vet before considering rebreeding.

Join RPBA and Breed with Confidence

Eclampsia in cats can unfold without warning. With proper care, nutrition, and breeder education, this emergency can be prevented or managed quickly. Responsible breeders stay alert, act fast, and support their queens through every phase of the breeding cycle. Interested in more support? Learn how RPBA membership helps responsible cat breeders like you.