What is DMSO (CAS 67-68-5) in pharmaceutical preparations?

CAS 67-68-5 Dimethyl sulfoxide (DMSO) has long been recognized as an important reaction solvent for the synthesis of drug compounds and is becoming increasingly important as an excipient in finished pharmaceutical dosage forms.

1. As a Pharmaceutical Solvent & Carrier

DMSO Primary Use: Dissolves poorly water-soluble drug candidates for preclinical research (cell-based assays, animal studies).

2. As a Penetration Enhancer (Excipient)

Function: Added to some topical/transdermal formulations (gels, creams, patches) to significantly improve skin absorption of the active drug.

Application: DMSO CAS 67-68-5 is used in compounded pain-relief gels or experimental formulations for localized delivery of anti-inflammatories or analgesics.

3. As an Active Pharmaceutical Ingredient (API)

FDA-Approved Drug: DMSO itself is a prescription medicine for:

Interstitial Cystitis: 50% liquid solution instilled directly into the bladder to relieve pain and inflammation.

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