Phenytoin Sodium Extended Coupons & Discount Card - Compare Prices Near You

You may experience some common side effects such as headaches, nausea, vomiting, constipation, dizziness, a sensation of spinning, drowsiness, difficulty sleeping, or feelings of nervousness. These are usually mild, but if they persist or worsen, it's important to consult with your healthcare provider. Phenytoin can also cause gum swelling and bleeding. To help prevent this, regularly massage your gums and maintain good dental hygiene by brushing and flossing your teeth. Visiting your dentist regularly is advised.

Serious side effects are not common, but be attentive to symptoms such as a slow heartbeat, unusual eye movements, loss of coordination, trouble speaking, confusion, muscle twitching, double or blurred vision, tingling in the hands or feet, facial changes, excessive hair growth, increased thirst or urination, unusual tiredness, or bone/joint pain. These require prompt medical attention. Additionally, some individuals may experience mental health changes, including depression or suicidal thoughts. If you notice any sudden mood changes or thoughts of self-harm, seek immediate help.

In rare cases, males may experience a painful or prolonged erection lasting four or more hours, which needs urgent medical attention to prevent lasting damage. Very serious side effects, such as uncontrolled muscle movements, signs of liver issues, or easy bruising and bleeding, also demand immediate medical care. Although a severe allergic reaction is rare, watch for symptoms like fever, swollen lymph nodes, rash, severe dizziness, or trouble breathing and seek immediate medical help if these occur. This summary does not cover all possible side effects, so consult your healthcare provider if you notice any other unusual symptoms.

Some products that may interact with this medication include Colesevelam, Orlistat, and Sucralfate. Other drugs can influence how phenytoin is eliminated from your body, potentially affecting its effectiveness. Such drugs include Amiodarone, azapropazone, azole antifungals like Itraconazole, macrolide antibiotics such as Erythromycin, estrogens, Isoniazid, rifamycins like Rifabutin, and St. John's wort, among others.

Phenytoin can also accelerate the removal of other medications from your body, impacting their effectiveness. Affected drugs include Atazanavir, certain cancer treatments like Imatinib and irinotecan, cobicistat, corticosteroids such as Prednisone, doravirine, Etravirine, felodipine, nisoldipine, rilpivirine, Quetiapine, quinidine, suvorexant, telithromycin, Theophylline, Vitamin D, and others.

Additionally, this medication may reduce the effectiveness of hormonal contraceptives such as pills, patches, or rings, which could result in pregnancy. It's important to discuss with your doctor or pharmacist whether you should use a reliable backup birth control method while taking this medication. Inform your doctor if you experience any new spotting or breakthrough bleeding, as these may indicate that your birth control is not working effectively.

Lastly, this medication may interfere with certain lab tests, potentially leading to inaccurate results. Ensure that all healthcare providers and lab technicians are aware that you are taking this medication.