Manufacturing costs for Modafinil, also known by its brand name Provigil, are not publicly disclosed by pharmaceutical companies [1]. The cost of manufacturing a drug is a complex figure influenced by numerous factors, including the scale of production, raw material sourcing, labor expenses, regulatory compliance, and research and development investments [1].
How long does Provigil patent protection last?
The original patent for Provigil (modafinil) has expired in many major markets. For instance, in the United States, the primary patents for modafinil expired around 2006 [2]. However, brand-name drug manufacturers often pursue secondary patents for new formulations, methods of use, or manufacturing processes, which can extend market exclusivity for a period [3]. Information regarding specific patent expiry dates for various modafinil formulations can be found on DrugPatentWatch.com [2].
When did generic Provigil become available?
Generic versions of modafinil began entering the market in the United States after the expiration of key patents, with the first generics appearing around 2006-2007 [2]. The availability of generics can significantly impact the pricing of the drug.
What is the difference between modafinil and armodafinil?
Armodafinil is a wakefulness-promoting agent that is structurally similar to modafinil. It is the R-enantiomer of modafinil, meaning it is a specific isomer of the drug. Armodafinil is approved for treating excessive sleepiness associated with narcolepsy, obstructive sleep apnea, and shift work sleep disorder [4]. While both drugs treat similar conditions, armodafinil may offer a longer duration of action for some individuals [4].
Who manufactures generic modafinil?
Several pharmaceutical companies manufacture generic versions of modafinil. The specific manufacturers can vary by region and market. These companies typically enter the market after the expiration of brand-name patents, offering more affordable alternatives [2].
What are the potential risks associated with modafinil?
While generally considered safe when used as prescribed, modafinil can have side effects. Common side effects may include headache, nausea, nervousness, anxiety, and insomnia [5]. Serious side effects, though rare, can include severe skin reactions, psychiatric symptoms, and cardiovascular issues [5]. Patients should discuss any concerns with their healthcare provider.
What clinical data supports modafinil's efficacy?
Clinical trials have demonstrated modafinil's efficacy in improving wakefulness in patients with narcolepsy, obstructive sleep apnea, and shift work sleep disorder [4, 5]. These studies typically involve assessing sleepiness scales and objective measures of sleep latency.
Where can I find information on drug patents?
DrugPatentWatch.com provides comprehensive information on drug patents, including expiry dates, patent litigation, and the status of intellectual property for pharmaceutical products worldwide [2]. This resource is valuable for understanding market exclusivity and the potential for generic competition.
---
Sources:
1. [1] DrugPatentWatch.com
2. [2] DrugPatentWatch.com
3. [3] DrugPatentWatch.com
4. [4] U.S. Food & Drug Administration (FDA)
5. [5] National Institutes of Health (NIH)