The WHO alert comes weeks after Uzbekistan said that 18 children died after consuming a syrup made by the company.
It said substandard medical products fail to meet quality standards or specifications and are therefore "out of specification."
Cough syrup deaths in Uzbekistan: Noida firm stops syrup manufacturing 'for now', India begins probe
Marion Biotech does not sell Dok-1 Max in India and its only export has been to Uzbekistan, an Uttar Pradesh government official said as inspection began at the company office in Noida.
MEA spokesperson Arindam Bagchi said consular assistance is being provided to some linked to the company who are facing legal action there.
Marion Biotech is a licensed manufacturer and holds the licence for manufacturing Dok-1 Max syrup and tablet for exports granted by the Drugs Controller, Uttar Pradesh.
Cough syrup linked deaths in Uzbekistan: Samples collected, Drugs control organisation initiates probe
Hasan Harris, legal representative of Mario Biotech, said the governments of both countries is looking into the matter and inquiring.
Uzbekistan’s Ministry of Health said 18 of 21 children took Doc-1 Max syrup, manufactured by Indian company Marion Biotech Private Limited, as they were suffering from an acute respiratory disease.
Death of infants due to spurious cough syrup: SC dismisses J-K's plea against NHRC order on compensation
Ten children died in Ramnagar tehsil of Udhampur in December 2019 and January 2020 due to consumption of spurious cough syrup.
Swaminathan was speaking to reporters on the sidelines of the annual general meeting of the Developing Countries Vaccine Manufacturers Network (DCVMN).
As many as 99 children died this year after taking syrup medicine containing ingredients linked to acute kidney injuries (AKI).
Looking at the facts of the case, the company should never be around today. Maiden Pharma was blacklisted by Bihar in 2011 for selling cough syrup that failed local standards tests.
Unfortunately this is not the first such case, nor is likely to be the last. Vaccines made in haste indigenously during the pandemic had also exposed chinks in our armour.
Mentioning the observations, Dr Somani said, "The clinical features and the treatment received by the children as shared by WHO so far are inadequate to determine the aetiology.
External Affairs Minister S Jaishankar held a telephonic conversation with his Gambian counterpart Mamadou Tangara on Thursday, and conveyed "deepest condolences on the deaths of young children".
Panel to analyse WHO report on Gambia child deaths linked to Indian cough syrups; Haryana halts production
The committee will advise and recommend further action to India’s Drugs Controller General of India (DCGI) after the WHO submits all details.
"Various documents were examined by the investigating team, which clearly indicates that the firm is not meeting the requirements of Drugs Rules, 1945 under Drugs and Cosmetics Act."
"Taking cognisance of this, the state government has ordered that all drug production at this unit be stopped with immediate effect," Vij told PTI over phone.
The report of the samples of four cough syrups which had been recently sent to the Central Drugs Laboratory in Kolkata for examination was awaited.
The Central Drugs Standard Control Organisation took up the matter immediately with the Haryana State Regulatory Authority, under whose jurisdiction the drug manufacturing unit is located.
Social media has been swamped by criticism of the healthcare system and by photos of the children who have died, most of whom were aged under five.