Based on the information provided, I was unable to find specific details regarding additional side effects with increased COSENTYX dosage. However, I can provide some general information about the drug and its side effects.

COSENTYX, also known as secukinumab, is a medication used to treat several conditions, such as plaque psoriasis, psoriatic arthritis, and ankylosing spondylitis. It belongs to a class of drugs called monoclonal antibodies, which work by targeting and blocking a specific protein in the body that contributes to inflammation.

Common side effects of COSENTYX include:

1. Injection site reactions (redness, swelling, itching, or bruising)
2. Upper respiratory tract infections (cold, flu, or sinus infections)
3. Headache
4. Diarrhea

Serious side effects of COSENTYX are rare but can include:

1. Serious allergic reactions
2. Infections (tuberculosis, invasive fungal infections)
3. Inflammatory bowel disease
4. Reactivation of inactive (latent) tuberculosis

When it comes to dosage, COSENTYX is typically administered as a subcutaneous injection. The recommended dosage for plaque psoriasis, psoriatic arthritis, and ankylosing spondylitis is 300 mg at Weeks 0, 1, 2, 3, and 4, followed by 300 mg every 4 weeks. However, the dosage may be adjusted based on the patient's response to treatment.

It is important to note that increasing the dosage of a medication does not necessarily result in an increased likelihood or severity of side effects. Each individual's response to a medication can vary, and side effects depend on various factors, such as the patient's overall health, age, and other medications being taken.

Therefore, if you have specific concerns about increasing the dosage of COSENTYX or its potential side effects, it is best to consult a healthcare professional or pharmacist.

Sources:

1. COSENTYX (secukinumab) injection, for subcutaneous use [Prescribing Information]. (2021). Novartis Pharmaceuticals Corporation. <https://www.novartis.us/sites/www.novartis.us/files/cosentyx.pdf>
2. Cosentyx. (2021). Drugs.com. <https://www.drugs.com/cosentyx.html>
3. Secukinumab. (2021). DrugPatentWatch.com. <https://www.drugpatentwatch.com/drugs/secukinumab>