Aminoglycosides are excreted by glomerular filtration and have a serum half-life of 2 to 3 h; the half-life increases exponentially as the GFR falls (eg, in renal insufficiency, in the elderly).
Madagascar is the world's major natural vanilla producer, accounting for about 75% of production. Cloves are the third main export crop, grown mostly by smallholders. Production follows a 4-year cycle with 2â3 years of high output followed by one year of low production.
Major fruit crops include banana, mango, citrus and pineapples. Statistics on fruit production is not available because of unorganized market system, but Malawi is in overall a net importer of fresh fruits especially apples, citrus and mango (National Research Council of Malawi, 1999). 8 Table 1.