Promethazine and Dextromethorphan Side Effects and Warnings

What are the precautions when taking this medicine?

• This medicine is not for coughs due to smoking or lung disease.

• If you have glaucoma, talk with healthcare provider.

• If you have heart disease, talk with healthcare provider.

• If you have lung disease, talk with healthcare provider.

• If you have Parkinson's disease, talk with healthcare provider.

• If you have seizures, talk with healthcare provider.

• Check medicines with healthcare provider. This medicine may not mix well with other medicines.

• You may not be alert. Avoid driving, doing other tasks or activities until you see how this medicine affects you.

• Avoid alcohol (includes wine, beer, and liquor) or other medicines and natural products that slow your actions and reactions.

• You can get sunburned more easily. Avoid sun, sunlamps, and tanning beds. Use sunscreen; wear protective clothing and eyewear.

• Tell healthcare provider if you are pregnant or plan on getting pregnant.

What are some possible side effects of this medicine?

• Feeling lightheaded, sleepy, having blurred vision, or a change in thinking clearly. Avoid driving, doing other tasks or activities that require you to be alert or have clear vision until you see how this medicine affects you.

• Feeling dizzy. Rise slowly over several minutes from sitting or lying position. Be careful climbing.

• Constipation. More liquids, regular exercise, or a fiber-containing diet may help. Talk with healthcare provider about a stool softener or laxative.

• Dry mouth. Frequent mouth care, sucking hard, sugar-free candy, or chewing sugar-free gum may help.

Reasons to call healthcare provider immediately

• If you suspect an overdose, call your local poison control center or emergency department immediately.

• Signs of a life-threatening reaction. These include wheezing; chest tightness; fever; itching; bad cough; blue skin color; fits; or swelling of face, lips, tongue, or throat.

• Chest pain or pressure, fast heartbeat, or passing out.

• Persistent cough.

• Severe constipation.

• Shakiness, difficulty moving around, or stiffness.

• Unable to pass urine.

• Sudden change in vision, eye pain, or irritation.

• Feeling extremely tired or weak.

• Any rash.

• No improvement in condition or feeling worse.