Other. Temperate deciduous forests are most notable because they go through four seasons. Leaves change color in autumn, fall off in the winter, and grow back in the spring; this adaptation allows plants to survive cold winters.
1 Although vision problems and loss of sight while taking hydroxychloroquine (Plaquenil) for the treatment of lupus or arthritis are very rare, notify your doctor if you notice any changes in your vision. 2  Your doctor also may suggest regular eye exams while taking this medication.
Hydroxychloroquine is an antimalarial drug, sold under the trade names Plaquenil, Axemal (in India), Dolquine and Quensyl, also used to reduce inflammation in the treatment of rheumatoid arthritis (see disease-modifying antirheumatic drugs) and lupus.t is available for oral administration as hydroxychloroquine sulfate (plaquenil) of which 200 mg contains 155 mg base in chiral form. Hydroxychloroquine has similar pharmacokinetics to chloroquine, with quick gastrointestinal absorption and elimination by the kidney.