Eferin package

From a brand trusted in 31 countries for 25 years

Eferin

Today's energy, for years to come.
A daily habit built on earthworm powder.

The ordinary, everyday moments you share with your beloved companion.
There are things you can start today to keep those days going.
Eferin is a supplement built around earthworm (Eisenia fetida) powder, known as EF powder, designed to support healthy circulation.

  • 25yrsIn business
  • 3,000clinics×31countriesVeterinary clinics in Japan + our global reach
  • 4patentsPatents granted

Why Eferin

  • 01

    Trial sizes by body weight

    Trial packs are available in amounts matched to body weight, making it easy for first-time users to get started.

  • 02

    An original formula centered on earthworm powder

    Centered on EF (Eisenia fetida) powder, with the aim of supporting healthy circulation.

  • 03

    Carried by veterinary clinics

    Carried by 3,000 veterinary clinics across Japan.

Key Ingredients

  • Raw material of EF powder
    EF (Eisenia fetida) powder

    A powder made from the earthworm Eisenia fetida, focused on supporting healthy circulation.

  • Raw material of Pine Fiber
    Pine Fiber

    A starch-derived dietary fiber.

Our Commitment to Quality and Safety

Eferin is delivered under strict quality control at every step, from receiving raw materials to manufacturing and shipping. Trial sizes matched to body weight let first-time users try it with confidence.

Eferin tablets (shown at approximately actual size)

How to Use

Daily guideline (by body weight)

Under 10 kg2–4 tablets/day
10 to under 20 kg4–6 tablets/day
20 to under 30 kg6–8 tablets/day
30 kg and over8+ tablets/day

These amounts are guidelines only. If your pet has an ongoing health condition or you have any concerns about their health, please adjust the amount with your veterinarian.

How to give

Mix into food, or give as is, like a treat. If your pet has an ongoing health condition or is taking other medication, please consult your veterinarian before use.

FAQ

When should I start giving it?

At any age, whenever you start thinking about everyday health. If your pet has an ongoing health condition or you have any concerns about their health, please consult your veterinarian before use.

Can it be combined with other supplements?

In general, yes. If you plan to combine several supplements, we recommend checking with your veterinarian just to be safe.

What if my pet's weight is close to the boundary between ranges?

The number of tablets for each weight range is a flexible guideline. Start at the lower end of the range and adjust while watching how your pet does. If you are unsure, please adjust the amount with your veterinarian.

Availability of Eferin varies by country. For product details, supply or distribution, please get in touch.

Contact us

Veterinary clinics outside Japan →

Distributors & partnership →

← Back to all products