Annova

Description

Annova 15 gm Gel

Pharmacology
As with other non-selective NSAIDs, naproxen exerts it’s clinical effects by blocking COX-1 and COX-2 enzymes leading to decreased prostaglandin synthesis. Although both enzymes contribute to prostaglandin production, they have unique functional differences. The COX-1 enzymes is constitutively active and can be found in normal tissues such as the stomach lining, while the COX-2 enzyme is inducible and produces prostaglandins that mediate pain, fever and inflammation. The COX-2 enzyme mediates the desired antipyretic, analgesic and anti-inflammatory properties offered by Naproxen, while undesired adverse effects such as gastrointestinal upset and renal toxicities are linked to the COX-1 enzyme.

Indications
Napoxen is indicated for the relief of sign and symptoms of-
rheumatoid arthritis
osteoarthritis
ankylosing spondylitis
juvenile arthritis
tendonitis
bursitis
acute gout
It is also indicated for the management of primary dysmenorrhea & pain.

Dosage & Administration
Naproxen Sodium oral preparations should be taken with water preferably after meals.

Naproxen Sodium Enteric Coated Tablet: Adult:
For rheumatoid arthritis/ osteoarthritis/ ankylosing spondylitis: For adults 500-1000 mg per day taken in two devided doses at 12- hour intervals. The maintenance dose is usually 500 mg per day taken in two devided doses at 12 – hour intervals. The total daily dose of Naproxen should not exceed 1000 mg maintaining 12-hour intervals.
For acute gout: 750 mg should be given initially, then 250 mg every 8 hours until the attack has passed. Children under 16 years are not recommended.
For dysmenorrhoea: For adults 500 mg should be given initially, followed by 250 mg at 6-8 hour intervals for upto 5 days, if necessary.
For other indications like analgesia and acute musculoskeletal disorders: 500 mg should be given initially, followed by 250 mg at 6-8 hour intervals, if necessary.
Naproxen Sodium Enteric Coated Tablet: Children: Children under 16 years are not recommended.

Naproxen Suspension: Children:

For juvenile rheumatoid arthritis: The usual dose for children over 2 years is 10 mg/kg/day given as two divided doses at 12-hour intervals. Therapy in children under 2 years of age is not recommended. The following may be used as a guide for dosage of suspension:
13 kg (29 lb) 2.5 mL b.i.d.
25 kg (55 lb) 5 mL b.i.d.
38 kg (84 lb) 7.5 mL b.i.d.

Naproxen Gel: Is to be applied 2-6 times a day as required and is not recommended for use in children.