While NyQuil doesn't contain any decongestants, their cold and flu products include an antihistamine called doxylamine succinate and a cough suppressant called dextromethorphan. While cough suppressants won't typically affect your blood pressure, an antihistamine can.

Decongestants help open a stuffy nose. The medicines narrow blood vessels, which can reduce swelling in the nose area and other parts of the body. But it's harder for blood to flow through a narrowed blood vessel. This can increase blood pressure.

So, if you need to shop for cold and flu medicines and have high blood pressure, avoid ingredients like decongestants. Look for medicines like DayQuil™/NyQuil™ High Blood Pressure Cold and Flu Relief Liquid Medicine that are decongestant-free and specially formulated for people with high blood pressure.

PRINCIPAL DISPLAY PANEL - 236 ml Bottle Label

If you suffer from cold, cough or flu symptoms, try Coricidin HBP products. Topical nasal decongestants such as Afrin (oxymetazoline), Neo-Synephrine (phenylephrine), Privine (naphazoline), and Vicks VapoRub Inhaler (l-desoxyephedrine/levmetamfetamine) can also cause an increase in blood pressure.

Decongestants can cause narrowing of blood vessels throughout the body. Certain pain relievers and anti-inflammatory meds may cause water retention, increasing the chance of raising your blood pressure.

It's most important to look at the active ingredients. Those are the ingredients that have the biggest impact on your body. If you have high blood pressure, avoid medications that have the following active ingredients: Pseudoephedrine (a decongestant): Brand names include Sudafed and Drixoral.

If you have a history of high blood pressure, there are cold medications specifically designed for you. One such medication is Coricidin HBP and doesn't contain a decongestant. Another option for nasal congestion is to use nasal sprays which do not affect blood pressure.

If you're looking for a safe cold medicine for high blood pressure, consider Coricidin. Coricidin is an over-the-counter multi-symptom product marketed specifically for patients with high blood pressure.

Decongestants can cause narrowing of blood vessels throughout the body. Certain pain relievers and anti-inflammatory meds may cause water retention, increasing the chance of raising your blood pressure.

Some common types of OTC medicines you may need to avoid include:

• Decongestants, such as those that contain pseudoephedrine.
• Pain medicines (NSAIDs), such as ibuprofen and naproxen.
• Cold and flu medicines.
• Some antacids and other stomach medicines.
• Some herbal remedies and dietary supplements.

Large population studies have demonstrated that the use of NSAIDs similar to those in OTC cold and flu remedies is associated with about two additional cardiovascular events (such as a heart attack or stroke) per 1,000 people per year among individuals without a history of cardiovascular disease (CVD).