Arthritis is a group of conditions where there is damage caused to the joints of the body. Arthritis is the leading cause of disability in people over the age of 55. Treatment options vary depending on the type of arthritis and include physical and occupational therapy, and medications (symptomatic or targeted at the disease process causing the arthritis).
Arava
Arava (Generic name -- LEFLUNOMIDE) is the first isoxazol derivative approved for the treatment of rheumatoid arthritis. Arava was also the first agent for rheumatoid arthritis indicated for both symptomatic improvement and retardation of structural joint damage based on radiographic evidence of its disease modifying activity.
Arcoxia (Generic name -- ETORICOXIB ) belongs to a family of drugs known as COX-2 selective inhibitors used for chronic pain and for acute pain. Arcoxia is mostly used for treatment of rheumatoid arthritis, osteoarthritis,ankylosing spondylitis, chronic low back pain, acute pain and gout.
A generic drug (pl. generic drugs, short: generics) is a drug which is identical, or bioequivalent to a brand name pill in quality, performance characteristics, dosage form, safety, strength, route of administration, performance characteristics . Generics must contain the same active ingredients as the original formulation.
New medicines, like other recently contrived products, manufacture and distribute under patent protection. The patent protects the investment in the drug's development by giving the company the sole right to sell the medicine while the patent is in effect. When patents or other periods of exclusivity expire, manufacturers can apply to the FDA to sell generic versions. The ANDA process does not require the drug sponsor to repeat costly animal and clinical research on ingredients or dosage forms already approved for safety and effectiveness. This applies to drugs first marketed after 1962.
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What is Viagra
Sildenafil (Viagra) is indicated for the treatment of erectile dysfunction. Erection is mediated by the release of nitric oxide in the corpus cavernosum of the penis. Nitric oxide stimulates the enzyme guanylate cyclase, which increases levels of cGMP; it is this response that creates smooth muscle relaxation and blood flow. A substance called phosphodiesterase type 5 (PDE5) leads to the degradation of cGMP. Sildenafil increases the availability of cGMP. Randomized controlled clinical trials demonstrate improved sexual performance as measured by firmness of erection, ability to maintain erection after penetration, as well as satisfaction and enjoyment with intercourse. The usual recommended dose is 50 mg administered 30-60 minutes prior to intercourse, with maximum recommended dosing frequency once per day. Clinical trials regarding the use of sildenafil to treat opioid-induced sexual dysfunction, in men or women, have not been conducted.
