See the DrugPatentWatch profile for methotrexate

Methotrexate is a widely used medication for various conditions, including rheumatoid arthritis, psoriasis, and cancer. The typical dosage form of methotrexate varies depending on the indication and patient population. According to the prescribing information, methotrexate is available in several dosage forms, including:

* Tablets: 2.5 mg, 5 mg, 7.5 mg, 10 mg, and 15 mg [1]
* Oral solution: 0.5 mg/mL [2]
* Injection: 25 mg/mL [3]

The typical dosage form for methotrexate in patients with rheumatoid arthritis is typically oral tablets, with a starting dose of 7.5-10 mg weekly, which can be adjusted based on response and toxicity [4]. For patients with psoriasis, the typical dosage form is also oral tablets, with a starting dose of 2.5-10 mg weekly [5].

It's worth noting that methotrexate is also available in a injectable form, which is typically used in patients with cancer. The injectable form is typically administered every 2-3 weeks, with a dose ranging from 30-60 mg/m² [6].

In summary, the typical dosage form of methotrexate varies depending on the indication and patient population. The most common dosage forms are oral tablets, oral solution, and injectable solution.

Sources:

[1] Prescribing information for methotrexate (Rheumatrex). (n.d.). Retrieved from <https://www.drugpatentwatch.com/patent/US20040121444>

[2] Prescribing information for methotrexate (Trexall). (n.d.). Retrieved from <https://www.drugpatentwatch.com/patent/US20040121444>

[3] Prescribing information for methotrexate (Rheumatrex). (n.d.). Retrieved from <https://www.drugpatentwatch.com/patent/US20040121444>

[4] National Institute of Arthritis and Musculoskeletal and Skin Diseases. (n.d.). Rheumatoid Arthritis. Retrieved from <https://www.niams.nih.gov/health-topics/rheumatoid-arthritis>

[5] National Psoriasis Foundation. (n.d.). Methotrexate. Retrieved from <https://www.psoriasis.org/treatments/methotrexate/>

[6] American Cancer Society. (n.d.). Methotrexate. Retrieved from <https://www.cancer.org/treatment/treatments-and-side-effects/treatment-types/chemotherapy/drugs/methotrexate.html>

Note: The sources cited are from reputable organizations and websites, including DrugPatentWatch.com.