Can I take Folic acid and Solifenacin together?

Why this happens

Folic acid is a B vitamin used by the body to make new cells, while solifenacin is an antimuscarinic medicine used to treat an overactive bladder. These drugs are processed by different pathways in the body and do not interfere with how the other is absorbed, broken down, or excreted.

What you should do

You can continue to take both medications as prescribed by your doctor. No special precautions or timing adjustments are necessary.

Important precautions

Glaucoma

Do not take solifenacin if you have narrow-angle glaucoma, as it can increase the pressure in your eyes and worsen the condition.

Vitamin B12 deficiency (Pernicious Anaemia)

Folic acid can mask the symptoms of vitamin B12 deficiency. If you have B12 deficiency, taking folic acid alone can allow serious nerve damage to progress even though your blood count appears normal. Your doctor must ensure your B12 levels are checked before or during treatment.

Heat exposure and exercise

Solifenacin reduces your ability to sweat. In hot weather or during heavy exercise, you are at a higher risk of overheating and heatstroke.

Food and drink warnings

Alcohol

It is best to avoid or strictly limit alcohol while taking folic acid. Alcohol interferes with the way your body absorbs and uses folic acid, which can make the treatment less effective. Chronic alcohol consumption is a common cause of folate deficiency.

It is best to avoid or strictly limit alcohol while taking solifenacin. Both alcohol and solifenacin can cause drowsiness and blurred vision; combining them increases the risk of these side effects and may impair your coordination. Additionally, alcohol can irritate the bladder and worsen the symptoms solifenacin is intended to treat.

Grapefruit juice

You should avoid drinking large amounts of grapefruit juice while taking solifenacin. Grapefruit can increase the level of solifenacin in your blood, which makes side effects like dry mouth, constipation, and blurred vision more likely.

Caffeine (Coffee, Tea, Energy Drinks)

You should limit your intake of caffeine. Solifenacin is used to treat an overactive bladder, but caffeine is a natural diuretic and bladder irritant that can worsen symptoms like urgency and frequency, potentially making your medication less effective.

Using other medicines

Taking multiple medicines? Our Medicines Interaction Checker helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.

Disclaimer

This information is for general educational purposes only and should not be relied upon as a substitute for professional medical advice. Always consult your GP, pharmacist, or another qualified healthcare professional before making decisions about your medications. Individual circumstances may vary, and only a healthcare professional who knows your medical history can provide personalised guidance.