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Nov 19, 2025 - 10:33 AM
We’ve provided several answers to questions related to Pennsaid (Diclofenac) , see some other helpful Q&A related to this product.
Question: What is the PubChem CID for this medication?
Answer: The PubChem CID is 3033. PubChem is a database of chemical molecules and their activities, valuable for researchers and healthcare professionals.
Question: What is the ATC code for this medication?
Answer: The ATC code is M02AA15. ATC stands for Anatomical Therapeutic Chemical classification, which helps categorize medications for clinical and regulatory purposes.
Question: What are the brand names associated with this medication?
Answer: The brands include Pennsaid and Voltaren Gel. Having multiple brand options may provide flexibility in accessing the medication depending on availability and insurance coverage.
Question: What are the inactive ingredients in this topical solution?
Answer: The inactive ingredients include dimethyl sulfoxide USP (DMSO, 45.5% w/w), ethanol, purified water, propylene glycol, and hydroxypropyl cellulose. Inactive ingredients contribute to the stability, absorption, and application experience of the medication, which can affect skin feel and tolerability.
Question: What is the bioavailability of this medication when applied topically?
Answer: The bioavailability is approximately 6% when applied topically. Bioavailability refers to the amount of drug that enters the circulation; lower bioavailability from topical use means fewer systemic side effects compared to oral medications.
Question: What is the chemical formula of the active ingredient?
Answer: The chemical formula of diclofenac sodium is C14H11Cl2NO2. Knowing the chemical formula can be helpful for healthcare professionals or those with sensitivities to specific chemical structures.
Question: What form does this product come in?
Answer: This product is available as a topical solution. A topical solution is applied directly to the skin, allowing targeted relief at the site of pain or inflammation, which can be especially beneficial for people with localized joint issues.
