chronic

Echinococcosis (Hydatid Disease)

Treatment options, dosing, cautions and Egyptian brands from the shipped Dawaa Reference card.

Evidence status

Checked against the sources named below

Sources3 sources

Echinococcus Granulosus - StatPearls (NCBI Bookshelf NBK539751) - https://www.ncbi.nlm.nih.gov/books/NBK539751/ · ICPC-3 (WONCA International Classification of Primary Care, 3rd edition) class DD07.10 - condition scope only, no dose · Egyptian National Drug Formulary - Antimicrobial 2023 (albendazole monograph, p26)

Verified against1 document

Egyptian National Drug Formulary - Antimicrobial 2023 (albendazole monograph, p26)

Verified date2026-08

Presentation reference

Is it this?

Reference only, to read alongside your own examination.

Symptoms — what the patient reports (8)

It can stay silent for months or years, and some carry cysts for years unaware [cyst]
A growing cyst brings symptoms slowly, by pressing on the tissue around it [cyst]
Anything sudden points to rupture rather than to growth
Rupture can set off an allergic reaction with hives, swollen mucous membranes and flushing, and it can kill [urticaria]
In the liver: abdominal pain, reduced appetite and a swollen abdomen [abdominal distension · abdominal pain · poor appetite]
In the lung: a long-running cough, chest pain and breathlessness [breathlessness · chest pain · cough]
Infection is often caught in childhood but shows late, because the cysts grow so slowly [cyst]
Cysts in brain or eye are the exception and usually declare themselves in childhood [cyst]

Signs — what you find (5)

An enlarged liver, a mass you can feel, and a distended abdomen [abdominal distension · hepatomegaly]
The liver holds more than 65 in 100 of these and the lungs 25
Bone, spleen, nervous system and heart can also be involved
Usually there is a single cyst, but 20 to 40 in 100 have more than one organ involved [cyst]
A leaking cyst spills its contents into the peritoneum and seeds fresh cysts there [cyst]

Tests (12)

Start with exposure history, including living in or coming from an area where it is common
Ask particularly about contact with dogs and with cattle
Liver tests do not track severity and are abnormal in only about 4 patients in 10
Alkaline phosphatase is the enzyme that rises; transaminases and bilirubin usually stay normal
The blood count may show raised eosinophils
ELISA screens for antibody and an immunoblot confirms it, but many patients mount no response at all
Ultrasound is the first choice for liver and abdomen, and for follow-up, though it depends on the operator
Ultrasound appearances run from a simple cyst with a double line, through a many-chambered rosette
Then a detached membrane giving the water lily sign, or daughter cysts within solid material
Finally a mixed-density mass without daughter cysts, then a solid walled cyst
The first two appearances mean live disease, the third a cyst in transition, the last two inactive disease
Plain films show ring-like calcification in up to 30 of every 100, at any stage

If not this — what else fits (6)

It can copy a great many conditions, depending on where the cyst sits
Liver abscess, or a simple liver cyst
Budd-Chiari syndrome
Biliary colic, or biliary cirrhosis
Tuberculosis
Primary liver cancer

SourceStatPearls "Echinococcus Granulosus" - disease-level clinical article

Presentation findings are traced to the source above.

Rx: Antiparasitic | Main treatment

ANTIPARASITIC

ALBENDAZOLE

Antiparasitic

1st line

Strength400 mg

Formoral.solid

Adult dose and duration

10-15 mg/kg/day in two divided doses, each dose capped at 400 mg x 1 to 6 months, decided by the cyst stage and the response

Paediatric dose

5-7.5 mg/kg/dose [child max 400 mg]

(Hydatid disease in children and adolescents: 5-7.5 mg/kg per dose twice daily for 1 to 6 months, each dose capped at 400 mg. The grid above is per dose, not per day - twice this amount is given in 24 hours.)

Dose by weight
3kg	15-22.5 mg/dose
4kg	20-30 mg/dose
5kg	25-37.5 mg/dose
6kg	30-45 mg/dose
7kg	35-52.5 mg/dose
8kg	40-60 mg/dose
9kg	45-67.5 mg/dose
10kg	50-75 mg/dose
11kg	55-82.5 mg/dose
12kg	60-90 mg/dose
13kg	65-97.5 mg/dose
14kg	70-105 mg/dose
15kg	75-112.5 mg/dose
16kg	80-120 mg/dose
17kg	85-127.5 mg/dose
18kg	90-135 mg/dose
19kg	95-142.5 mg/dose
20kg	100-150 mg/dose
21kg	105-157.5 mg/dose
22kg	110-165 mg/dose
23kg	115-172.5 mg/dose
24kg	120-180 mg/dose
25kg	125-187.5 mg/dose
26kg	130-195 mg/dose
27kg	135-202.5 mg/dose
28kg	140-210 mg/dose
29kg	145-217.5 mg/dose
30kg	150-225 mg/dose
31kg	155-232.5 mg/dose
32kg	160-240 mg/dose
33kg	165-247.5 mg/dose
34kg	170-255 mg/dose
35kg	175-262.5 mg/dose
36kg	180-270 mg/dose
37kg	185-277.5 mg/dose
38kg	190-285 mg/dose
39kg	195-292.5 mg/dose
40kg	200-300 mg/dose
41kg	205-307.5 mg/dose
42kg	210-315 mg/dose
43kg	215-322.5 mg/dose
44kg	220-330 mg/dose
45kg	225-337.5 mg/dose
46kg	230-345 mg/dose
47kg	235-352.5 mg/dose
48kg	240-360 mg/dose
49kg	245-367.5 mg/dose
50kg	250-375 mg/dose

Choice

Alternatives. Albendazole is the drug of choice in the cited article; mebendazole at 40-50 mg/kg/day is the alternative and is the less-used of the two.

Dose source

Egyptian National Drug Formulary - Antimicrobial 2023 (albendazole monograph, p26)

Why

The cited article names albendazole as the drug of choice for hydatid disease at 10-15 mg/kg/day, with mebendazole 40-50 mg/kg/day as the other option. The formulary's albendazole monograph names cystic hydatid disease of the liver, lung and peritoneum caused by the larval form of the dog tapeworm as an indication and gives the weight-based rule below, so the drug, the indication and the dose all come from named documents. Drug treatment alone is for cysts the article calls CE1 and CE3a under 5 cm in liver or lung, for disease in two or more organs, and for a patient who cannot have surgery; it is also given around surgery or a percutaneous procedure to stop the cyst coming back.

Cautions

DO NOT GIVE IT TO SHRINK A CYST THAT MIGHT BURST. The cited article says benzimidazole treatment is contraindicated in cysts vulnerable to rupture, and in early pregnancy.
THIS IS NOT A DECISION TO MAKE ALONE. Which cyst is treated with a drug, which with surgery and which with the PAIR needle procedure depends on the ultrasound stage. Anaphylaxis is a real risk if a cyst is punctured or leaks, and the article says the operator must be equipped to deal with it.
Monitor while on treatment: the cited article asks for white cell count, liver transaminases and ultrasound every 3 to 6 months at first, then yearly once stable.
Do not give to anyone with a known allergy to albendazole or another benzimidazole.
Mebendazole 40-50 mg/kg/day is the alternative the article gives if albendazole cannot be used.

Egyptian brands

Egyptian brand	Manufacturer	Indicative price
ALBENDAZOLE 400 MG 6 TABS	PHARMA CURE PHARMACEUTICALS > PHARMA CURE	46.00 EGP (7.67/unit)
ANTIZOLE 100MG/5ML SUSP. 30ML? strength differs? different route - not oral solid	ALEXANDRIA	19.00 EGP
ALZENTAL 20MG/ML SUSP. 20ML? strength differs? different route - not oral solid	EIPICO	21.00 EGP

MAIN TREATMENT

REFERRAL & SAFETY-NETTING (NO DRUG THERAPY)

1st line

Adult dose and duration

Hydatid cyst disease from contact with dogs and livestock, seen in Egypt's rural farming communities. Diagnosis and treatment (surgery and/or albendazole) requires imaging and specialist care; GP recognises the possibility and refers. - Refer, with advice

Paediatric dose

Children follow the same pathway: recognise and refer. No primary-care medicine is implied.

Dose source

No dose - referral pathway, no medicine given in primary care

Why

Cautions

The drug rows above are what the treating service gives. They are here so that the referral is an informed one and so the GP can recognise the regimen the patient comes back on - not as permission to start it without the referral.
RED FLAG - Sudden severe pain or an allergic reaction suggesting cyst rupture, jaundice, or coughing blood from a lung cyst: refer urgently.

Prices are indicative (dataset snapshot 2026-06); verify with the pharmacy.