Though it is labeled for dog use only, selegiline has been used off-label for geriatric cats with cognitive dysfunction.Selegilines efficacy in treating pituitary-dependent hyperadrenocorticism has been disputed. Theoretically, it works by increasing dopamine levels, which downregulates the release of ACTH, eventually leading to reduced levels of cortisol. Some claim that selegiline is only effective at treating PDH caused by lesions in the anterior pituitary (which comprise most canine cases). The greatest sign of improvement is lessening of abdominal distention.Side effects in dogs are uncommon, but they include vomiting, diarrhea, diminished hearing, salivation, decreased weight and behavioral changes such as hyperactivity, listlessness, disorientation, and repetitive motions.Selegiline does not appear to have a clinical effect on horses. Research
Selegiline has been limitedly studied in the treatment of attention deficit hyperactivity disorder (ADHD) in both children/adolescents and adults. In a small randomized trial of selegiline for treatment of ADHD in children, there were improvements in attention, hyperactivity, and learning/memory performance but not in impulsivity. In another small randomized controlled trial of selegiline for the treatment of adult ADHD, a high dose of the medication for 6 weeks was not significantly more effective than placebo in improving symptoms. == References ==
Mobocertinib, sold under the brand name Exkivity, is used for the treatment of non-small cell lung cancer.The most common side effects include diarrhea, rash, nausea, stomatitis, vomiting, decreased appetite, paronychia, fatigue, dry skin, and musculoskeletal pain.Mobocertinib is a small molecule tyrosine kinase inhibitor. Its molecular target is epidermal growth factor receptor (EGFR) bearing mutations in the exon 20 region. Mobocertinib is an irreversible kinase inhibitor, forming a covalent bond with the cysteine 797 in the EGFR active site, leading to sustained inhibition of EGFR enzymatic activity. The irreversible binding leads to increased potency via higher affinity binding, more sustained EGFR kinase activity inhibition, and greater overall selectivity, as only a limited number of other kinases possess a cysteine in the equivalent position.Mobocertinib was approved for medical use in the United States in September 2021. It is a first-in-class oral treatment to target EGFR Exon20 insertion mutations. Medical uses
Mobocertinib is indicated for adults with locally advanced or metastatic non-small cell lung cancer (NSCLC) with epidermal growth factor receptor (EGFR) exon 20 insertion mutations, as detected by an FDA-approved test, whose disease has progressed on or after platinum-based chemotherapy. Mechanism of action
Mobocertinib acts to inhibit EGFR exon 20 insertion mutations at a lower concentration than it does on wild-type proteins. Pharmacokinetics
The volume of distribution of Mobocertinib at steady state is 3,509 L.  The mean oral bioavailability of Mobocertinib is 37%. The median Tmax is 4 hours. The average half-life of Mobocertinib and its metabolites is 18 hours. Mobocertinib is metabolized by CYP3A enzymes.