
Since cats are most susceptible to urolithiasis, experts recommend prevention and, if the disease does occur, treatment with KotErvin. According to veterinarians, this medication is highly effective and completely safe for animals.
Content
Composition and release form
KotErvin is an infusion of medicinal plants. It includes:
- 1.5% resthor root;
- 0.5% knotweed;
- 0.5% horsetail;
- 1.5% knotweed herb;
- 96% distilled water.
The sterile infusion has a characteristic herbal aroma and a color ranging from light to dark brown. A natural sediment forms during storage, so shake the bottle before use.
Healing properties of herbs

The root of the horsetail contains tannins and organic acids, which normalize the tone of smooth muscles, increase diuresis, and have a good analgesic effect.
Bird's knotweed and bird's knotweed have similar properties. They contain tannins, vitamins, flavonoids, and silicic acid. These components have anti-inflammatory and diuretic effects, strengthening capillary walls. In cases of urolithiasis, they promote the removal of stones.
Horsetail is rich in flavonoids, water-soluble forms of silicic acid, and triterpene saponins. has an anti-inflammatory effect, increases urine flow, provides a hemostatic effect.
Indications for use
Ervin for cats has a mild diuretic, stone-dissolving, and salt-removing effect. Its use prevents inflammation. It does not cause allergic reactions and does not harm the pet, as it is completely absorbed by the body. The medication does not have cumulative, embryotoxic, or teratogenic properties. Due to these properties, KotErvin is prescribed for the treatment of urolithiasis and urologic syndrome in cats.
Instructions for use
The drug is used both for preventive purposes and for the treatment of diseases of the genitourinary system:
For prophylactic purposes, a single dose of Ervin is 2-4 ml. It is administered once daily using a dropper attached to the bottle. It is recommended to administer it to your cat every three to four months for a course of 5-7 days.
- In the early stages of urolithiasis or urological syndrome, the same single dose of the drug is administered twice daily. The course of treatment is at least 5-7 days. For more effective treatment, symptomatic medications should be used concurrently.
- If urination is difficult, the medication is also administered into the bladder using a disposable syringe and catheter. A single dose is 10 to 16 ml. CotErvin is administered once every two days. Before administration, the syringe is filled with the infusion from the vial using a needle. The needle is then replaced with a catheter, through which the fluid is infused into the bladder.
Side effects and contraindications
According to the instructions, Ervin for cats does not cause side effects when used correctly. However, some of its components may cause an allergic reactionTherefore, it should be given to pets with increased sensitivity with caution.
A contraindication to the drug is renal failure in cats.
Special instructions
When using CotErvin it is recommended observe the following rules:
The herbal infusion can only be stored in the refrigerator, as it does not contain dyes or preservatives.
- The shelf life of an opened bottle is no more than 7 days.
- Before use, open the bottle and attach the special dispenser. Apply the solution directly into the cat's mouth with three drops of the dropper. If this method or a spoon is not successful, the medication can be dissolved in milk.
- When administering the medication into the bladder, ensure the syringe and catheter are sterile. Shake the solution well and warm it before use.
KotErvin reviews
To prevent our British Shorthair cat from marking the apartment, we decided to have him neutered. Our suffering began almost immediately. After a while, we noticed blood in his urine. He began urinating frequently and meowing pitifully. He would sit on the litter box for long periods of time, suffering. He would wander around the apartment, searching for cool spots and sitting on them. The vet diagnosed us with urolithiasis.
Our cat was given some kind of injections for seven days. For two weeks, we gave him KotErvin drops, after which the cat it got better right before my eyesHe stopped seeking out cold spots, became more cheerful, and started going to the bathroom normally. The blood in his urine disappeared. Our Barney took the drops happily. We divided the ampoule into three doses and applied them to his mouth with a syringe. It turns out the medication is made entirely of natural ingredients, so it didn't cause any harm to our Barney. The treatment course needs to be repeated in a month, and we've already stocked up on the medication. It's not very expensive and is available at almost any veterinary pharmacy.
Our cat started having problems urinating when he was about five years old. He'd sit in the litter box for long periods of time, but it didn't help. He wouldn't empty his bladder. We ended up having a catheter inserted for three days straight and a course of antibiotics. There was no improvement. We decided to see another veterinarian, who prescribed an all-natural remedy called KotErvin. According to the doctor, it washes away sand well and crushes stones, very effective and easy to use.
The cat felt better the very next day after taking the medication. He recovered very quickly. Store the medication in the refrigerator, shake it well, and warm it before use. We gave our pet a syringe. During flare-ups, we gave him 2 ml. As a result, the three bottles in the box were enough for a seven-day course of treatment. This is a very good product, so I can confidently recommend it to anyone whose pet suffers from urolithiasis.

However, during exacerbations of the disease the drug is still a bit weakAlong with this, it's necessary to give the cat anti-inflammatory medications and vitamins. Every spring and fall, we administer these drops to our pet as a preventative measure. We administer the solution directly into his mouth using a syringe without a needle, 2 ml per day. At the same time, we always feed him only therapeutic food. We don't buy cheap dry food. As a result, he's been practically healthy, active, and happy for over seven years.
Our cat has been taking KotErvin for over eight years. When we neutered him, I thought there was virtually no difference between the foods, so I bought dry, low-quality food. As a result, two years later, we were hospitalized with urolithiasis. We underwent lengthy treatment with a variety of medications and procedures. Afterward, we were prescribed KotErvin and a strict diet.
Now I feed my cat special food, and at the first sign of illness, I start giving him KotErvin. I really like how quickly and effectively this medication works. It starts working after just a few days of treatment. the cat goes to the toilet freelyHe takes the drops without any problems. I don't know what helps more—the medicine or the food, but there haven't been any relapses. However, we always have KotErvin in our house.
In my review, I'd like to recommend feeding your pets only high-quality food and treating them with the natural remedy KotErvin to prevent urolithiasis. This is especially true for neutered cats.
For prophylactic purposes, a single dose of Ervin is 2-4 ml. It is administered once daily using a dropper attached to the bottle. It is recommended to administer it to your cat every three to four months for a course of 5-7 days.
The herbal infusion can only be stored in the refrigerator, as it does not contain dyes or preservatives.


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