Weight Gain
Weight gain is an increase in body weight.
This can be either an increase in muscle mass, fat deposits, or excess fluids such as water.
Causes of weight gain
Cessation of cigarette smoking
Congenital disorders (e.g., Prader-Willi syndrome and pseudohypoparathyroidism)
Depression
Disturbances of hypothalamic satiety centers
- Encephalitis
- Trauma
- Tumors
Drugs
- Antidepressants
- Monoamine oxidase inhibitors
- Selective serotonin uptake inhibitors
- Tricyclic antidepressants
- Antiepileptics
- Carbamazepine
- Gabapentin
- Valproate
- Antihistamines
- Antihypertensives
- Alpha-adrenergic blockers
- Beta-adrenergic blockers
- Clonidine
- Antipsychotics
- First-generation antipsychotics
- Haloperidol
- Loxapine
- Phenothiazines
- Second-generation (atypical) antipsychotics
- Aripiprazole
- Clozaril
- Olanzapine
- Quetiapine
- Risperidone
- Glucocorticoids (pharmacologic doses)
- Highly active antiretroviral therapy
- Hypoglycemic agents
- Insulin
- Meglitinides
- Sulfonylureas
- Thiazolidinediones
- Megestrol acetate
- Oral contraceptives
- Progestational agents
Endocrine disorders
- Acromegaly
- Cushing syndrome
- Hypothyroidism
- Insulinoma
- With treatment of diabetes mellitus
- With treatment of thyrotoxicosis
Exogenous obesity
Increased body fluid
Reference
1. Jensen MD. Obesity, pp. 1342-1343. See Bibliography, 5.