INCURIN® 1 mg tablet Species: Dogs Therapeutic indication: Pharmaceuticals: Hormones and therapeutically related products: Other sex hormones Active ingredient: Estriol Product:INCURIN® 1 mg tablet Product index: INCURIN® Qualitative and quantitative composition Active substance: estriol 1 mg/tablet For the full list of excipients, see section “Pharmaceutical particulars”. Pharmaceutical form Round single-scored tablets. Clinical particulars Target Species Dogs (bitches). Indications for use The treatment of hormone-dependent urinary incontinence due to sphincter mechanism incompetence in ovariohysterectomised bitches. Contraindications Do not use in intact bitches, as the efficacy has only been established in ovariohysterectomised bitches. Animals showing a polyuria-polydipsia should not be treated with Incurin. The use of Incurin is contraindicated during pregnancy, lactation and in animals younger than 1 year. Special warnings for each target species High doses of oestrogen may have a tumour-promoting effect in target organs with oestrogen receptors (mammary glands). Special precautions for use In case of oestrogenic effects, the dose should be lowered. Operator warnings Not applicable. Adverse Reactions Oestrogenic effects such as swollen vulva, swollen mammary glands and/or attractiveness to males and vomiting have been observed at the highest recommended dose of 2 mg per dog. The incidence is about 5-9 %. These effects are reversible after lowering the dose. In rare cases vaginal bleeding occurred. In rare cases development of alopecia has also been observed. Use during pregnancy or lactation Do not use this product during pregnancy or lactation. See also section “Contraindications”. Interactions None known. Amounts to be administered and administration route For oral administration. A relationship between final effective dose and body weight has not been established and therefore the dose has to be determined for each dog on an individual basis. The following dosing schedule is advised: start treatment with 1 tablet (1 mg estriol) every day. If treatment is successful, lower the dose to half a tablet a day. If treatment is not successful, increase the dose to 2 tablets a day to be given in one dose. Some dogs do not need daily treatment; treatment every other day may be tried, once the effective daily dose has been established. The minimum dose given should not be less than 0.5 mg per dog per day. Ensure the dose used to achieve the therapeutic effect is as low as possible. Do not use more than 2 tablets per dog per day. If no response to treatment is obtained the diagnosis should be reconsidered in order to investigate other causes for the incontinence such as neurological disorders, bladder neoplasia, etc. Animals should be re-examined every 6 months during treatment. Overdose In case of overdose typical oestrogen effects may occur. These effects are reversible after lowering the dose. Withdrawal periods Not applicable. Pharmacological particulars ATC Vet Code: QG03CA04 Pharmacological particulars Pharmacotherapeutic group Estrogens Pharmacodynamic properties Estriol is a short-acting natural oestrogen. In ovarioectomised female dogs it has a beneficial effect on urinary incontinence. In the target animal safety study and the clinical trials, including long-term treatment, no signs of bone marrow suppression were observed. This is probably due to the short-acting oestrogenic character of estriol. Pharmacokinetic particulars After oral administration Estriol is nearly completely absorbed from gastrointestinal tract. Nearly the whole Estriol is bound to Albumin in Plasma. Estriol is excreted in conjugated from via the urine. After oral administration of multiple doses no accumulation occurs.