Kasolin (Castoreum Extract)

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Kasolin is a natural adaptogen stimulating sexual function that contains concentrated castoreum extract. Numerous active compounds of castoreum are included in the drug formulation in homeopathic doses. Namely:

  • alcohols and phenols, including catechol and its derivatives;
  • hydroquinone and chavicol;
  • ketones, natural steroids and acids (benzoic, salicylic, cinnamic and p-Anisic);
  • esters, resinous compounds and mineral components;
  • others.

Castoreum extract is well-known in some countries as a natural adaptogen. The first mentions of it can be traced back to ancient times when it was used to treat “cold and wet” diseases. There are references in German sources on the use of castoreum as a medicine since the 8th century. It has been officially sold in German speaking countries since the 19th century.

Yet there is no information on the use of castoreum as a biologically active substance in English sources.

This drug was manufactured at the premises of Belmedpreparaty – one of the largest pharmaceutical trading companies in the Republic of Belarus. https://belmedpreparaty.com/eng/. This drug has an innovative dosage form: softgel capsules with oil extract as opposed to alcohol extract. 

The information about Kasolin is taken from
Kasolin is a certified drug in the Republic of Belarus sold in pharmacies. Currently, the castor sacs are extracted without killing the animals.


  • The drug is aimed at the prevention and treatment of reproductive disorders;
  • impotence (functional or radiation-induced);
  • menopausal disorders;
  • low libido in both sexes;
  • decline in sexual activity.

Read more about reproductive health category.

Legal Disclaimer
This product has not been approved by the US FDA. All statements on this page are for informational purposes only and have not been evaluated by the US FDA.
This product is not intended to diagnose, treat, cure, or prevent any disease. See more

Application and dosage

Orally, 200-400 mg 3 times a day, with food, for 10-30 days. The maximum daily dose is 1,200 mg. Duration of treatment course can be up to 2 months provided the drug is prescribed and well tolerated. If necessary, treatment courses can be repeated with intervals of 4-6 months in-between.

One pack of 50 capcules 200 mg is sufficient for a primary two-week course.


Active ingredient: Kasolin (total content of phenolic and steroid compounds not less than 0.6 mg) 200 mg.

Softgel capsules’ formulation: gelatin, glycerin and methyl p-hydroxybenzoate.

Pharmacodynamic properties

Kasolin is an adaptogen in its pharmacological effect. It has a general tonic, restorative and stress-protective effect and increases nonspecific resistance of the body.

The drug treats reproductive disorders in men. It increases libido and restores sexual activity, stimulates erection and has a positive effect on semen quality. Kasolin increases serum testosterone levels and stabilises serum beta-lipoproteins, triglycerides and thyroid-stimulating hormone.

Kasolin has the following experimentally proven properties:

  • reproductive function enhancement and pronounced adaptogenic effect;
  • immunity enhancement in case of chronic stress (by phagocytosis stimulation) and a moderately activating effect;
  • anxiolytic, nootropic and stress-protective effect.

Side effects

Kasolin is well tolerated when administered in recommended doses. In case of allergic response, Kasolin should be discontinued.

Drug interaction

Patients receiving (constantly or intermittently) nitric oxide (NO) donors, nitrate medications (nitroglycerin, etc.) and hypotensive drugs in any dosage form do not have contraindications for administering Kasolin. The drug may have a synergistic effect when prescribed in combination with sedative and antispasmodic herbal medicines.

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