Phenergan Vc (Promethazine HCl and Phenylephrine HCl Syrup) Drug Overview of Side Effects and Precautions for Patients and Caregivers at RxList

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May 27, 2012

Phenergan Vc

Vertigo »

Vertigo introduction

Balance is defined as a state of equilibrium. It takes significant amount of work for this to occur in the body. The brain uses inputs from many sources to understand where the body is located in relationship to the world and to allow it to function. Sensory information from the eyes, ears, and position receptors in the rest of the body help keep the body upright and allow it to move in a coordinated fashion.

Information comes to cerebellar lobes located in the base of the brain from the vestibular system in the inner ear, vision from the eyes, and proprioception (position) receptors located throughout the body that send signals through the spinal cord. The cerebellum uses that information to maintain posture, coordinate body motions like walking and also coordinate fine motor skills like using a pen to write.

Vertigo, a feeling of spinning movement and sometimes accompanied by nausea and vomiting, occurs when an...

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Phenergan Vc

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Please Note: This Brand Name drug is no longer available in the US.
(Generic versions may still be available.)

Phenergan Vc Consumer (continued)

SIDE EFFECTS: Drowsiness, dizziness, headache, upset stomach, nausea, or dry mouth may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor immediately if any of these unlikely but serious side effects occur: mental/mood changes (such as confusion, hallucinations), ringing in the ears, shaking (tremors), difficulty urinating, vision changes (such as blurred/double vision).

Tell your doctor immediately if any of these rare but serious side effects occur: easy bruising/bleeding, slow/shallow breathing, involuntary behaviors/movements (such as fixed upward stare, neck twisting, tongue movements).

Promethazine may rarely cause a serious condition called neuroleptic malignant syndrome (NMS). Seek immediate medical attention if you develop the following: fast/irregular heartbeat, fever, muscle stiffness, seizure, severe confusion, sweating.

A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

PRECAUTIONS: See also Warning section.

Before taking this medication, tell your doctor or pharmacist if you are allergic to promethazine or phenylephrine; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: blood/immune system problems (such as bone marrow depression), breathing problems (such as asthma, emphysema, sleep apnea), diabetes, glaucoma, heart problems (such as angina, irregular heartbeat), high blood pressure, liver problems, seizure, stomach/bowel problems (such as ulcer, blockage), overactive thyroid (hyperthyroidism), difficulty urinating (such as due to enlarged prostate).

This drug may make you dizzy or drowsy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Children should be supervised to avoid injury during bicycle riding or other possibly hazardous activities. Limit alcoholic beverages.

This medication may make you more sensitive to the sun. Avoid prolonged sun exposure, tanning booths, and sunlamps. Use a sunscreen and wear protective clothing when outdoors.

Liquid forms of this medication may contain sugar, alcohol, or aspartame. Caution is advised if you have diabetes, alcohol dependence, liver disease, phenylketonuria (PKU), or any other condition that requires you to limit/avoid these substances in your diet. Ask your doctor or pharmacist about using this product safely.

Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).

Children may be more sensitive to the effects of the drug, especially slowed breathing. Young children may become excited/agitated instead of drowsy.

Older adults may be more sensitive to the effects of the drug, especially dizziness, drowsiness, or confusion.

During pregnancy, this medication should be used only if clearly needed. Discuss the risks and benefits with your doctor.

It is unknown if this medication passes into breast milk. Consult your doctor before breast-feeding.