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Author: Admin | 2025-04-28
Checked. Tell your healthcare provider right away if you have any of the following symptoms of bone marrow suppression.FeverShortness of breathPale or yellowish skinEasy bruising or bleedingFrequent infectionUnusual weakness or tirednessDizziness, lightheadedness, or feeling like you are about to pass outHeadacheFast or abnormal heartbeatNeuroleptic Malignant Syndrome (NMS). Promethazine/phenylephrine can cause a rare but serious condition called neuroleptic malignant syndrome. NMS is a serious condition that can lead to death. Stop taking promethazine/phenylephrine and call your healthcare provider right away if you have any of the following symptoms.High feverMuscle stiffness or rigidity, where it is hard to moveChanges in your breathing or heart rateIncreased sweatingConfusionMovement Problems. Promethazine/phenylephrine may rarely cause involuntary movement problems, including shakiness, stiffness, or jerkiness. Call your healthcare provider right away if you develop any unusual or uncontrolled movements. Warnings & Precautions Who should not use promethazine/phenylephrine?Allergies to Ingredients. People who are allergic to any of the following should not take promethazine/phenylephrine.PromethazinePhenylephrinePhenergan VCPrometh VCPromethazine VCAny of the ingredients in the specific product dispensedYour pharmacist can tell you all of the ingredients in the specific promethazine/phenylephrine products they stock.Lung Problems. Promethazine/phenylephrine should not be used if you have asthma or other lung problems. Promethazine/phenylephrine can make these conditions worse.High Blood Pressure (Hypertension). Promethazine/phenylephrine should not be used if you have high blood pressure. Promethazine/phenylephrine could make this condition worse.Peripheral Vascular Disease. Promethazine/phenylephrine should not be used if you have peripheral vascular disease, which is a condition that affects blood vessels. Promethazine/phenylephrine could make this condition worse.Drug Interactions. Promethazine/phenylephrine should not be taken while you are using certain other medicines. Before taking promethazine/phenylephrine, tell your healthcare provider about any prescription or over-the-counter (OTC) medicines, vitamins/minerals, herbal products, and other supplements you are using or have used recently. See the Interactions section for more details.Children. Promethazine/phenylephrine should not be used in
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