The drug is covered under patent protection, which means that only the pharmaceutical company that holds the patent is allowed to manufacture, market the drug.
Tadalafil is the active ingredient in Cialis, meaning Cialis works in exactly the same way. As of 2025, Cialis no longer has an exclusive patent on this drug, and this means that
The drug is covered under patent protection, which means that only the pharmaceutical company that holds the patent is allowed to manufacture, market the drug.
These drugs, called GLP-nists, are relatively new and still under patent, meaning there are no generic alternatives. The development
Earlier this year, the patent office turned down an application for Novartis' cancer drug Gleevec. However, Lilly has secured a process patent in India on Cialis, which means it
Tadalafil is the active ingredient in Cialis, meaning Cialis works in exactly the same way. As of 2025, Cialis no longer has an exclusive patent on this drug, and this means that
These patents are known as indication patents or second indication patents. In the medical context, an indication means using a specific drug or therapy to treat the condition it was specifically designed to treatfor instance, using insulin to treat diabetes or Viagra to treat erectile dysfunction.
patent protection for drugs that had already been patented abroad. In Chile The figure shows that in most cases the lag is positive, meaning the
A patent drug is a new drug that is protected by a patent. Patent drugs are drugs that meet the criteria for patentability, which are new
Comments
The Dresden-based German, Christine Hardt, patented the first modern brassiere in 1899.
Sigmund Lindauer from Stuttgart-Bad Cannstatt, Germany, developed a brassiere for mass production in 1912 and patented it in 1913.