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Composition for ADALAT

Nifedipine(20 mg)

food interaction for ADALAT

alcohol interaction for ADALAT

pregnancy interaction for ADALAT

lactation interaction for ADALAT

It can be taken with or without food, but it is better to take Adalat 20mg capsule at a fixed time.
Interaction with alcohol is unknown. Please consult your doctor.
Adalat 20mg capsule may be unsafe to use during pregnancy.
Either animal studies have shown adverse effect on fetus and there are no human studies or studies in human and animals are not available. It should be given only if potential benefits justifies risk to the fetus. Please consult your doctor.
Adalat 20mg capsule is probably safe to use during breastfeeding. Please consult your doctor.


Nifedipine(20 mg)


Adalat 20mg capsule is used to treat high blood pressure and to control angina ( chest pain).

How it works

Adalat 20mg capsule belongs to a category of drugs called as calcium channel blockers. It acts by widening the blood vessels to allow easy blood flow, which lowers the blood pressure and reduces chest pain.

Common side effects

Nausea, Allergic reaction, Swelling of tongue, Ankle swelling, Limb swelling, Chest pain, Constipation, Cough, Decreased sexual function, Dizziness, Difficulty in swalloing, Shortness of breath, Eye swelling, Facial swelling, Lip swelling, Fainting, Headache, Heartburn, Muscle cramp, Skin rash, Tachycardia, Yellow discoloration of skin, Yellow discoloration of eye


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Expert advice for ADALAT

  • Do not take the medicine within 3 days of taking grapefruit or grapefruit juice as it may lead to increased effects of the drug.
  • Check your blood pressure one week after starting the drug and inform your doctor if it hasn't improved.
  • Do not drive or operate machines as the drug can make you dizzy for first few days.

Frequently asked questions for ADALAT


Q. Is nifedipine safe?
Nifedipine is relatively safe if used as recommended. In case of any side-effects, consult your doctor.
Q. Is Nifedipine a nitrate/beta-blocker/ACE inhibitor/tocolytic?
No. Nifedipine is not a nitrate, beta-blocker, or an ACE inhibitor. It is a calcium channel blocker.
Q. What is Calcigard/Nicardia/Dipin used for?
Calcigard, Nicardia, Dipin are examples of a few brands containing nifedipine and used for treating high blood pressure, chest-pain and Reynaud’s phenomenon.
Q. Can I take aspirin/Tylenol/Benadryl/Viagra/ Tums/Sudafed with nifedipine?
Nifedipine can be taken with Tylenol (paracetamol), Sudafed (pseudoephedrine) and Benadryl. Taking Viagra (sildenafil) may increase the blood pressure lowering effect of nifedipine. Taking aspirin may increase the blood pressure. Tums (calcium carbonate) may decrease the effect of nifedipine. Consult your doctor before use.
Q. Does nifedipine cause migraine/constipation/insomnia/bradycardia/cough/weight gain/urination/changes in heart rate?
Nifedipine may cause migraine, constipation, insomnia or bardycardia (slow heart rate). There is no evidence of nifedipine causing cough or weight changes. If you notice such symptoms, please consult your doctor.
Q. Is nifedipine a narcotic or tocolytic?
No. Nifedipine is a non-narcotic/ uncontrolled/nonaddictive drug. Nifedipine is used as tocolytic (to delay preterm birth).


Content on this page was last updated on 16 June, 2014, by Dr. Varun Gupta (MD Pharmacology)