
Daiichi Sankyo Company, Limited is a global pharmaceutical company and the second-largest pharmaceutical company in Japan. It achieved JPY 2,305.4 billion in revenue in 2018. The company owns the American biotechnology company Plexxikon, the German biotechnology company U3 Pharma, and recently sold Ranbaxy Laboratories in India. Daiichi Sankyo Co., Ltd. is the producer of Benicar (Olmesartan), an angiotensin II receptor antagonist and top selling drug in the U.S. Global sales of Olmesartan in 2013 were 300.2 billion yen.

Captopril, sold under the brand name Capoten among others, is an angiotensin-converting enzyme (ACE) inhibitor used for the treatment of hypertension and some types of congestive heart failure.

Cevimeline (trade name Evoxac) is a parasympathomimetic and muscarinic agonist, with particular effect on M1 and M3 receptors. It is used in the treatment of dry mouth and especially associated with Sjögren's syndrome.

Colesevelam is a bile acid sequestrant administered orally. It was developed by GelTex Pharmaceuticals and later acquired by Genzyme. It is marketed in the US by Daiichi Sankyo under the brand name Welchol and elsewhere by Genzyme as Cholestagel. In Canada it is marketed by Valeant as Lodalis.

Edoxaban, sold under the brand name Lixiana among others, is an anticoagulant medication and a direct factor Xa inhibitor. It is taken by mouth.

Intravenous iron sucrose is a commonly used treatment for iron deficiency anemia. Iron sucrose replaces iron in the blood to foster red blood cell production in patients with chronic kidney disease. Iron sucrose has the trade name Venofer.

Loxoprofen is a nonsteroidal anti-inflammatory drug (NSAID) in the propionic acid derivatives group, which also includes ibuprofen and naproxen among others. It is available in some countries for oral administration. A transdermal preparation was approved for sale in Japan on January 2006.

Mirogabalin is a medication developed by Daiichi Sankyo, a gabapentinoid. Gabapentin and pregabalin are also members of this class. As a gabapentinoid, mirogabalin binds to the α2δ subunit of voltage-gated calcium channel, but with significantly higher potency than pregabalin. It has shown promising results in Phase II clinical trials for the treatment of diabetic peripheral neuropathic pain.

Naloxegol is a peripherally acting μ-opioid receptor antagonist developed by AstraZeneca, licensed from Nektar Therapeutics, for the treatment of opioid-induced constipation. It was approved in 2014 in adult patients with chronic, non-cancer pain. Doses of 25 mg were found safe and well tolerated for 52 weeks. When given concomitantly with opioid analgesics, naloxegol reduced constipation-related side effects, while maintaining comparable levels of analgesia.

Ofloxacin is an antibiotic useful for the treatment of a number of bacterial infections. When taken by mouth or injection into a vein, these include pneumonia, cellulitis, urinary tract infections, prostatitis, plague, and certain types of infectious diarrhea. Other uses, along with other medications, include treating multidrug resistant tuberculosis. An eye drop may be used for a superficial bacterial infection of the eye and an ear drop may be used for otitis media when a hole in the ear drum is present.

Olmesartan, sold under the trade name Benicar among others, is a medication used to treat high blood pressure, heart failure, and diabetic kidney disease. It is a reasonable initial treatment for high blood pressure. It is taken by mouth. Versions are available as the combination olmesartan/hydrochlorothiazide and olmesartan/amlodipine.

Panipenem (INN) is a carbapenem antibiotic used in combination with betamipron. It is not used in the United States.

Prasugrel, sold under the brand name Effient in the US, Australia and India, and Efient in the EU) is a medication used to prevent formation of blood clots. It is a platelet inhibitor and an irreversible antagonist of P2Y12 ADP receptors and is of the thienopyridine drug class. It was developed by Daiichi Sankyo Co. and produced by Ube and marketed in the United States in cooperation with Eli Lilly and Company.

Pravastatin, sold under the brand name Pravachol among others, is a statin medication, used for preventing cardiovascular disease in those at high risk and treating abnormal lipids. It should be used together with diet changes, exercise, and weight loss. It is taken by mouth.

Sitafloxacin is a fluoroquinolone antibiotic that shows promise in the treatment of Buruli ulcer. The molecule was identified by Daiichi Sankyo Co., which brought ofloxacin and levofloxacin to the market. Sitafloxacin is currently marketed in Japan by Daiichi Sankyo under the tradename Gracevit.

Vemurafenib is an inhibitor of the B-Raf enzyme developed by Plexxikon and Genentech for the treatment of late-stage melanoma. The name "vemurafenib" comes from V600E mutated BRAF inhibition.