Covid-19 Service Update

At Pharmacy Rx World, the health and safety of our customers and staff is our highest priority. Due to the worldwide Covid-19 pandemic affecting us all, there have been some changes within our industry in general, and in our company specifically, that we want to make our customers aware of.

Call Center

Our current call center hours of operation are 6:00 am – 9:00 pm, seven days a week. If you are experiencing increased hold times or are calling outside of these hours, please leave us a message or send us an email and we will get back to you as soon as we can. Due to increased demand on telephone networks worldwide, you may experience some intermittent connection problems. If this happens our agents will call you back.


We are currently seeing delays in our regular shipping times. Our normal shipping time averages 1 - 2 weeks. Shipments may now take an additional 2 – 4 weeks or more to arrive, depending on the source country of your order. Shipments from the United Kingdom and Canada are generally quicker than from other countries.

Please note that these times are averages and individual shipping times will vary. We highly recommend that you place your order at least 2 – 4 weeks or more ahead of your normal reorder time to avoid running out of your medication.

These are industry-wide delays and are mainly occurring due to disruptions in local postal delivery in the countries where our customers live. They are temporary, and we thank the shipping and delivery personnel who are working hard for all of us during this global crisis.

Please Note: We are now resuming our normal 30-Day Shipping Guarantee. We will provide updates as the situation changes.

Our Commitment

If you have any questions about any changes in our service please do not hesitate to contact us. Our staff are working tirelessly to ensure the timely fulfillment and delivery of all orders. The health of our customers and staff is our highest priority and we remain committed to providing service at the highest level.

We thank you for your support in these challenging times.

Management and Staff
Pharmacy Rx World
FREE Shipping on all orders over $49 USD

Dynacirc CR (Isradipine CR) and/or alternatives

Dynacirc CR is not available. Dynacirc CR is a brand name for Isradipine CR. Other brands of Isradipine CR are available below.

Brand Name Options
  1. Buy Dynacirc CR

    Dynacirc CR 5mg

    Marketed as Dynacirc SRO in New Zealand

    Manufactured by: Novartis

    Product of New Zealand. Shipped from Vanuatu

    RxPrescription Required
    Currently Unavailable.
Generic OptionsWhat is a Generic?

No Generic Alternative.

Please note that the country, manufacturer, and/or shipping country may vary depending on availability. All trademarks and registered trademarks are the property of their respective owners.

General Information On Dynacirc CR

Dynacirc CR (generic name: Isradipine ER) is usually prescribed along with thiazide diuretics in order to treat high blood pressure. Isradipine ER belongs to the group of calcium channel blockers, which widen your arteries so that blood can flow through them more easily. You can buy Dynacirc CR in the form of oral capsules with 2.5mg and 5mg strengths. Though this drug helps in keeping your high blood pressure in check, it cannot cure the condition, and so, you may need to take this drug in the long term, even if you are not feeling sick.

Side Effects for Dynacirc CR

Dizziness, warmth, a tingly feeling or redness under the skin, headache, tiredness, weakness, nausea, diarrhea, vomiting, upset stomach, itching, or skin rash are some of the commonly experienced side effects of Dynacirc CR. However, you need to inform your doctor if you experience shortness of breath, swelling on the hands or feet, chest pain, or pounding and fast heartbeat. Sometimes, you may see an empty capsule shell in your stools, but this is not harmful as the medicine has already been absorbed in your body. You should immediately stop using Dynacirc CR and notify your doctor if you have severe constipation or abdominal pain or notice changes in your vision like double vision, blurred vision, or complete vision loss. An allergic reaction to the medicine is rare, but it can be identified by hives, rash, swelling or itching of the face, throat, tongue, or lips, breathing trouble, and severe dizziness. In that case, you should discontinue using Dynacirc CR and seek medical help.


You should inform your doctor if you are suffering from a liver or kidney disease, congestive heart failure, or blockage or narrowing of the digestive tract. If you have any of these conditions, your doctor will need to conduct special tests or make dosage adjustments while recommending Dynacirc CR. Your doctor will also not ask you to buy Dynacirc CR if you are pregnant or breastfeeding unless extremely necessary. Apart from that, you should not consume grapefruit or grapefruit juice, as doing so may increase the amount of the medicine in your blood and result in low blood pressure. In order to prevent dizziness as a side effect of Dynacirc CR, you should try to get up from a lying or sitting position slowly, without a jerk.

Dynacirc CR Dosage

The medication usually starts with Dynacirc CR 5mg daily divided into 2 doses of Dynacirc CR 2.5mg 2 times a day. The capsule needs to be swallowed whole, without breaking, opening, crushing or chewing it. The increment in the dosage depends on your medical condition and response to treatment, and you need to take the medicine in the long term, as it only helps in controlling blood pressure, not curing it. Your blood pressure will remain under control as long as you are taking this medicine, and it will come back to its normal level if you stop taking it.


Some medicines that may react with Dynacirc CR include azole antifungals, rifamycins, macrolide antibiotics, and anti-seizure medications. Cimetidine is used for treating excessive stomach acid, and thus, may interact with Dynacirc CR. Therefore, you should consult your doctor before taking the two drugs together. You should also not take other drugs that decrease your blood pressure, as taking two medications to lower blood pressure can prove fatal.

IMPORTANT DISCLAIMER: All medical content is supplied by a third party company who is independent from this web site. As such, this web site can not guarantee the reliability, accuracy, and /or medical efficacy of the information provided. In all circumstances, you should seek the advice of a health professional pertaining to drug, treatment and/or medical condition advice. Note that not all products are shipped by our contracted Canadian pharmacy. This website contracts with dispensaries around the world that ship products directly to our customers. Some of the jurisdiction include but are not limited to United Kingdom, Europe, Turkey, India, Canada, Vanuatu, Mauritius, and USA. The items within your order may be shipped from any one of these jurisdiction depending on the availability and cost of the products at the time you place your order. The products are sourced from these countries as well as others. Please note that the product appearance may vary from actual product received depending on availability.