3. List of antifungal
Drugs for systemic fungal infections
Polyene antibiotics
Amphotericin B
Nystatin
Antifungal azoles
triazole(Fluconazole, Itraconazole)
Imidazole( ketonazole, miconazole,econazole)
Drugs for superficial fungal infections
Systemic drugs
Griseofulvin
Iodide
Topical drugs
Nystatin
4. AMPHOTERICIN B
Chemical composition
-Amphotericin B is a polyene antifungal containing many double bonds and large
lactone ring
Formula C47H73NO17
Mode of action .
Bind irreversibly to egrosterol, in disruption of membrane integrity
And ultimately cell death
for treatment of lesion in lungs and air sacs in poultry
aspergillosis in poultry
For Mastitis in cow
Brand name
Fungizone I.V,fungsome (50mg),
Amphotericin
Dosage
In poultry concentration is ranging from 0.03 to 1mcg/ml/kg
Price. 50 -100 in PKR
5. Antifungal azoles
-Imidazole derivatives: ketoconazole, miconazole, econazole,
clotrimazole
-Triazole derivatives: itraconazole, fluconazole.
Chemical composition
Five member heterocyclic compound contain a nitrogen atom and at
least one other non carbon atom
6. Mode of action
-Inhibition of sterol 14-alpha-demethylase, a cytochrome P450-dependent enzyme
blockade of the synthesis of ergosterol in fungal cell membranes
-The ultimate effect may be fungicidal or fungistatic depending on the organism and on
drug concentration
KETONAZOLE AND ITRACONAZOLE
for treatment of mycotic abortion in cattle
Fusarium species growing on stored maize , barley and pelleted cereal feed that cause
infertility in ruminants
ITRACONAZOLE and FLUCONAZOLE
for severe candidiasis in chicken, turkey
Crop harvested during wet seasons , some aspergillus species (A.flavus) grow on that
cause haemorrhgaic diathesis in poultry
Brand name
Onmel, lotrimin
Dosage: in poultry fluconazole 50mg/5ml powder for oral suspension
In cattle fluconazole 250mg/kg of diet
Price. Rs 350 rupees
7. systematic antifungal
GRISEOFULVIn
Chemical composition(formula)
Griseofulvin is a benzofuran derivative
The drug is practically insoluble in water
Mode of action
Griseofulvin bind with mycrotubules protein result disruption of mitosis spindle formation
The ultimate effect is fungistatic
For dermatophyte infection treatment
Ring worm treatment in calves
Ring worm in cattle and horse
Brand name
Griseofulvin, Gris-PEG
Dosage:
oral suspension 125mg/5ml
Price:
50-256 rupees
8. Systematic antifungal
IODIDE
Chemical formula
Potassium iodide (KI)and Sodium iodide(NaI)
Mode of action
There mode of action is not well understood
Enhancement of immune responses against fungal has been suggest
For treatment of actinomycosis(lump jaw) in cattle
Market name
Potassium iodide, sodium iodide
Dosage
Potassium iodide 6 to 10g/day for 7 to 10 days given orally to cattle
Sodium iodide 70mg/kg can be given intravenously
Price: Rs 50-85 rupees
9. TOPICAL ANTIFUNGAL DRUGS
Nystatin
Chemical composition
C14H75NO17
Mode of acion
A polyene antifungal useful only for local candidiasis
To treat oral or GIT candidiasis(sour crop) in poultry
Brand name
SALINOSE, Nistatin, fungicidin
Dosage:
1ml/300g added to feed twice a day for 7 days
in the feed (220 mg/kg of diet) or drinking water (62.5–250 mg/L with sodium lauryl sulfate, a
surfactant, at 7.8–25 mg/L) for 5 days may be effective for the treatment of affected turkeys.
Price:
SALINOSE 12.75 rupees
10. Topical antifungal
Haloprogin
Chemical composition
halogenated phenolic ether
Formula C9H4Cl3IO
Brand name
halotex( westwood), polik, haloprogie
Mode of action
The drug is fungicidal to various species of dermatophytes and candida in cattle and
in poultry
Dosage
In poultry 50mg/5ml
In cattle 200mg/kg
Price
250-300 rupees
13. feed used as antifungal
Clove: containing eugenol, a yeast killer
Ginger: anti-candida fain gingerol that support
the liver by detoxifying candida
Garlic: contain sulphric allicin act as antifungal
Coconut: contain caprylic acid and lauric
acid which kill yeast
Potassium iodide: used as antifungal in
ruminants