Nifedipine Topical is used in the treatment of anal fissure.

Nifedipine Topical works in anal fissure by blocking the action of calcium on blood vessels of anus. As a result, blood vessels are relaxed which allows fissure (tear) to heal and relieves pain.

• It is very common to have dizziness, lightheadedness, swelling ankles/feet, flushing, or a headache as a side effect.
• To lower your risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.
• Inform your doctor if your symptoms do not improve or if it worsens (for example, your blood pressure readings remain high or increase, chest pain continues or worsens). 
• Inform your doctor immediately if any of these serious side effects occur: fast/irregular/pounding heartbeat, fainting.
• Use this medication regularly to get the most benefit from it. To help you remember, take it at the same time each day. It is important to continue taking this medication even if you feel well.
• If you miss a dose, take it as soon as you remember. If it is near the time for the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose.

Ques. Q. Does nifedipine cause migraine/constipation/insomnia/bradycardia/cough/weight gain/urination/changes in heart rate?
Nifedipine topical may cause migraine, flushing, dizziness, nervousness, nausea, and vomiting. There is no evidence of nifedipine causing cough or weight changes. If you notice such symptoms, please consult your doctor.

Ques. Q. Is nifedipine topical a nitrate/beta-blocker/ACE inhibitor/tocolytic?
No. Nifedipine is a calcium channel blocker