2020                Quality surveillance of selected pharmaceutical products available in the Sri Lankan Market.
Improvement of internationally recommended biowaiver study methodology of solid oral amoxicillin products.

2019                Loading erythrocytes with drugs and determining their intracellular concentration. Study of pharmaceutical

residues in surface water, wastewater and drinking water of Colombo district.

Improved formulation and stability testing of selected pharmaceutical products compounded for special population.

2018                In vivo bioequivalence study conducted on locally manufactured amoxicillin product with the innovator product in

healthy volunteers.

                        In vitro in vivo correlation study on serum amoxicillin using clinical breakpoint.

2017                In vitro biowaiver study of a solid oral amoxicillin product available in the Sri Lankan market.

2016                Measurement of the solubility of selected sparingly soluble drugs at different pH conditions using a validated shake

flask method.

Biowaiver study of selected solid oral prednisolone products available in the Sri Lankan market.

                         In vitro Biowaiver study of selected solid oral Amoxicillin products available in Sri Lanka.

2015                Experimental determination of the bioequivalence and biowaiver criteria of selected pharmaceuticals available in

the Sri Lankan market.

Quality testing of cephalexin monohydrate solid oral dosage forms and validation of in vitro analytical methods for

biowaiver testing and determination of cephalexin in human serum.

Determination of the quality and conducting a biowaiver study of selected amoxicillin trihydrate products available

in the Sri Lankan market.

2014                Determination of the quality of Metronidazole and biowaiver study on the tablets in the Sri Lankan market.

2013- 2018      Experimental determination of bioequivalence/biowaiver criteria for locally manufactured pharmaceuticals.

2008- 2009      Preliminary study the effect of “Slimexol” (virgin coconut oil & black seed oil) on overweight and obesity.

2007- 2008      Clinical evaluation of the effect of Nigella sativa and Rauvolfia serpentine L. on the patients with high blood

pressure.

2006- 2007      Effect of the combination of Black seed and garlic on Hypercholesterolemia.

2005-2010       Research and development of Lunuwila (Baccopamoniera) capsule, Cinnamon capsule, Ashwagandha and

Welpenella capsule, Karapinchcha capsule, Natural foot care cream from virgin coconut oil and natural hair oil.

2002                Synthesis and analysis of pharmacopoeial quality of Salbutamol sulphate.