Old Medicine South Africa · SAHPRA

Stallion Panax Drops

Cantharis D30

U0567

What it does

Cantharis is a natural remedy used for various conditions, particularly related to the urinary system.

Commonly used for: inflammation of the bladder (cystitis), painful urination (dysuria)

Read more in plain English ↓

Plain-language summary for general understanding - not medical advice. Always follow your pharmacist/doctor.

Ask about this medicine

Answers come only from this medicine's registration record, BNF monograph and interaction data - not medical advice.

Medicine sourcing is available in Kenya only. We don't sell or dispense medicines - licensed pharmacies do.

Sourcing - Kenya only

Registration & product details

Registration no.
U0567
Registration date
1987/11/04
Expiry date
-
Status
Old Medicine
Active ingredient
Cantharis D30
Dosage form
-
Strength
-
Pack size
-
Therapeutic class
-
RxNorm RxCUI
1311265
Manufacturer / MAH
-
Applicant / LTR
Resmed Healthcare
Country of origin
-

Source: South African Health Products Regulatory Authority · fetched 2026-04-26 04:23:58 · updated 2026-10-18 04:02:35

Disclaimer: This information is sourced from South African Health Products Regulatory Authority (South Africa). Always consult a qualified healthcare professional before using any medication.

About this medicine

Cantharis is a natural remedy used for various conditions, particularly related to the urinary system.

What it treats

  • inflammation of the bladder (cystitis)
  • painful urination (dysuria)

How it works

Cantharis is believed to help reduce inflammation and relieve pain in the urinary tract.

Who it's for

Cantharis may be suitable for individuals experiencing urinary discomfort or related issues.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

Clinical monograph: cantharis

Cantharis, commonly known as Spanish fly, is derived from the blister beetle Lytta vesicatoria. It has a long history of use in traditional medicine, primarily as a diuretic and an irritant. Its main active component is cantharidin, which is known for its ability to cause blistering of the skin when applied topically. Due to its potent effects and potential toxicity, cantharis is used less frequently in modern clinical practice.

Indications

  • Blistering skin conditions
  • Certain types of warts and papillomas
  • As a counterirritant in some topical formulations

Dosage

Children: Refer to established clinical guidelines or product-specific information as dosages can vary widely based on indication and formulation.

Adults: Refer to established clinical guidelines or product-specific information as dosages can vary widely based on indication and formulation.

Mechanism of action

Cantharidin, the active compound in cantharis, acts mainly as a protein phosphatase inhibitor. This inhibition leads to the disruption of cellular signaling pathways, promoting apoptosis in certain cells. The irritant properties of cantharidin also stimulate local blood flow and promote the formation of blisters, which has been utilized in some therapeutic applications.

Pharmacodynamics

Cantharis exhibits a range of pharmacological effects, including diuretic activity, which is attributed to increased renal blood flow and altered nephron function. Its irritant properties can lead to local inflammation and blister formation, which may be beneficial in some dermatological conditions. However, the use of cantharis is associated with toxicity, including renal damage and gastrointestinal irritation, highlighting the need for caution.

Pharmacokinetics

Cantharidin is rapidly absorbed through the gastrointestinal tract, with peak plasma concentrations occurring shortly after ingestion. It is metabolized in the liver, and its effects can vary based on dosage and route of administration. The elimination half-life of cantharidin is not well defined, but it is known to be excreted primarily in urine. The systemic absorption can lead to potential toxicity, particularly at higher doses.

Contra-indications

  • Hypersensitivity to cantharis or any of its components
  • Severe kidney disease
  • Active gastrointestinal ulcers

Adverse effects

  • Nausea
  • Vomiting
  • Diarrhea
  • Abdominal pain
  • Burning sensation in the throat
  • Renal toxicity
  • Hematuria
  • Dermatitis

Interactions

  • Concurrent use with nephrotoxic drugs may increase the risk of kidney damage
  • Can enhance the effects of other irritants or diuretics

Precautions

  • Use cautiously in patients with a history of kidney problems
  • Should not be used in children without medical supervision
  • Monitor for signs of toxicity, especially in high doses

Pregnancy

Safety during pregnancy has not been established. Use only if clearly needed and if the potential benefit justifies the potential risk to the fetus.

Breast-feeding

It is not known whether cantharis is excreted in human milk. Caution is advised when administering to nursing mothers.

Storage

Store in a cool, dry place, away from direct sunlight. Keep out of reach of children.

Formulations

  • Topical ointments
  • Tinctures
  • Homeopathic preparations

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

This drug in other countries

The same active ingredient registered across other registries we cover - including different brands.