Methotrexate is given weekly as an intramuscular injection of 15 to 25 mg. Side effects are rare and include leukopenia and hypersensitivity interstitial pneumonitis. Hepatic fibrosis is the most severe potential sequela of long-term therapy. Patients with concomitant alcohol abuse and/or morbid obesity are more likely to develop hepatic fibrosis and therefore should not be treated with methotrexate. It is prudent to obtain a baseline chest radiograph and to monitor complete blood count, liver function and renal function every two weeks until the patient is receiving oral therapy, and every one to three months thereafter. Before methotrexate therapy is initiated, the risks of treatment and the possible need for a liver biopsy should be discussed with the patient.
Oral and injectable systemic corticosterois are steroid hormones prescribed to decrease inflammation in diseases and conditions such as arthritis (rheumatoid arthritis, for example), ulcerative colitis, Crohn's disease, asthma, bronchitis, some skin rashes, and allergic or inflammatory conditions that involve the nose and eyes. Examples of systemic corticosteroids include hydrocortisone (Cortef), cortisone, prednisone (Prednisone Intensol), prednisolone (Orapred, Prelone), and methylprednisolone (Medrol, Depo-Medrol, Solu-Medrol). Some of the side effects of systemic corticosteroids are swelling of the legs, hypertension, headache, easy bruising, facial hair growth, diabetes, cataracts, and puffiness of the face.