What Are the Most Common Side Effects of MS Treatments?

Multiple sclerosis (MS) treatments are designed to slow disease progression, reduce relapses, and manage symptoms. However, these treatments often come with a range of side effects that vary depending on the specific medication used. Understanding the most common side effects can help patients prepare for and manage them effectively.

One widely used class of MS medications includes oral drugs like fingolimod and teriflunomide. Fingolimod may cause serious side effects such as worsening MS symptoms including blurred vision or difficulty controlling bladder or bowels. Other possible reactions include muscle pain or stiffness, mood changes, skin rashes or itching, swelling in various parts of the body (face, hands, feet), dizziness or drowsiness, double vision, difficulty speaking or moving muscles properly, and even seizures in rare cases. Some patients might also notice changes in moles on their skin or yellowing of the skin and eyes indicating liver issues. Many mild side effects tend to improve as the body adjusts to treatment but should be monitored closely by healthcare providers.

Teriflunomide’s more common side effects include hair thinning or loss along with body aches and pains. Patients may experience sensations like burning, crawling feelings under the skin (paresthesia), chills, coughs producing mucus, dry eyes with irritation or excessive tearing. Less frequent but notable problems involve joint pain and swelling; redness or sores in mouth areas; bone pain; pimples; stomach discomfort including bloating; toothaches; weight loss; and eye inflammation causing redness and discomfort.

Another oral treatment option is cladribine (marketed as Mavenclad). This drug commonly causes upper respiratory tract infections such as colds along with headaches. It significantly lowers white blood cell counts—especially lymphocytes—which can increase vulnerability to infections like herpes zoster (shingles) and fungal infections if immune defenses drop too low during treatment cycles.

Infusion therapies such as Ocrevus work differently by targeting B-cells involved in MS inflammation but also carry their own set of potential adverse reactions mostly related to immune system responses during infusions. Common infusion-related issues include mild flu-like symptoms: feverish feelings with chills fatigue headaches sore throat itching rashes at injection sites These usually resolve quickly after treatment sessions when managed well through pre-medication protocols like steroids antihistamines hydration etc., though some people feel tired for a day or two afterward.

Beyond medication-specific side effects there are symptom-related complications that can worsen due to disease progression despite therapy efforts—such as spasticity which manifests as muscle tightness cramping especially in legs arms sometimes severe enough to disrupt sleep cognitive difficulties affecting processing speed memory multitasking ability depression anxiety all potentially exacerbated by ongoing neurological damage from MS itself rather than direct drug toxicity.

In summary:

– **Fingolimod**: risk of worsening neurological symptoms plus muscle/joint pain stiffness rash swelling mood changes seizures rare
– **Teriflunomide**: hair thinning/loss body aches paresthesia cough eye irritation joint/muscle pain digestive upset weight loss
– **Cladribine/Mavenclad**: increased infection risk due to lowered white cells upper respiratory infections headache hypersensitivity reactions
– **Ocrevus infusion**: flu-like symptoms fever chills fatigue headache rash itching post-infusion tiredness

Patients starting any MS therapy should work closely with their healthcare team for regular monitoring blood tests symptom tracking prompt management of any adverse events ensuring safety while maximizing benefits from these powerful treatments aimed at controlling this complex chronic illness over time.