Atorvastatin and atorvastatin calcium are therapeutically equivalent. This means they contain the same active ingredient and produce the same therapeutic effect.
However, the calcium salt form (atorvastatin calcium) has a slightly higher molecular weight. Consequently, a lower milligram dosage of atorvastatin calcium provides the same amount of atorvastatin as a higher milligram dosage of the free acid form. For example, 40mg of atorvastatin is equivalent to approximately 38mg of atorvastatin calcium.
Always refer to your prescription for the exact dosage prescribed by your doctor. Never adjust your dosage without consulting your physician. Variations in dosage forms might require adjustments based on individual patient needs and response to therapy.
This equivalence is supported by extensive clinical trials and regulatory approvals. Pharmacists routinely substitute these forms interchangeably, ensuring patients receive the same therapeutic benefit.
Checking the label is important to confirm the specific form (atorvastatin or atorvastatin calcium) and the dosage strength prescribed. This ensures accurate medication intake and helps avoid potential confusion.
