This market launch of generic Singulair follows the expiration of the last patent that provides Merck with US market exclusivity.
The company added montelukast sodium tablets are labeled for use in treating symptoms of asthma and allergic rhinitis.
According to IMS Health, the total combined sales for montelukast sodium tablets and chewables in the US were about USD4.9bn for the 12 months ending 30 June 2012.
Qualitest is an operating company of Endo Health Solutions Inc (NasdaqGS:ENDP), a US healthcare company.
Perrigo to acquire United States rights for Entocort from AstraZeneca
US FDA approves Boehringer Ingelheim's Pradaxa
Phase II clinical trial for potential treatment of androgenetic alopecia completed by Samumed
Life Sciences Partners collaborates on immuno-oncology with Bristol-Myers Squibb
Arsanis initiates first cohort in Phase one clinical trial of ASN100
Impax introduces generic Avodart (Dutasteride) Capsules, 0.5 mg
Mylan unveils generic FazaClo orally disintegrating tablets for treating schizophrenia