Tylenol PM - are there side effects?

Hello,

Yes.

Finding and Learning about Side Effects (adverse reactions)

From Minor to Life Threatening
Unwanted or Unexpected Drug Reactions
Drugs approved by the U.S. Food and Drug Administration (FDA) for sale in the United States must be safe and effective - which means that the benefits of the drug must be greater than the known risks. However, both prescription and over-the-counter (OTC) drugs have side effects. Side effects, also known as adverse reactions, are unwanted undesirable effects that are possibly related to a drug. Side effects can vary from minor problems like a runny nose to life-threatening events, such as a heart attack or liver damage.

Several things can affect who does and does not have a side effect when taking a drug – age; use of other drugs, vitamins, or dietary supplements; or other underlying diseases or conditions (for example, diseases that weaken the immune system or effect the function of the kidneys or liver).

Common side effects include upset stomach, dry mouth, and drowsiness. A side effect is considered serious if the result is: death; life-threatening; hospitalization; disability or permanent damage; or exposure prior to conception or during pregnancy caused birth defect.

Side effects can happen when you:

SideEffects

start taking a new drug or dietary supplement (for example, vitamins)
stop taking a drug that you’ve been on for a while, or
increase or decrease the dose (amount) of a drug that you take.
Reducing Your Risk
There are several ways to learn about side effects for your prescription drugs and to reduce your risk of experiencing a side effect.

Ask your health care professional about any possible side effects and what, if any steps should be taken to reduce the risk when you are prescribed a drug. For example, your health care professional may recommend taking the drug with food to lower the chance of getting nausea or to not take the drug with other drugs.
Ask your health care professional for information about the drug when you receive your prescription (FDA approved labeling for patients include Medication Guides and Patient Information). These documents will include possible common and serious side effects.
Read the pharmacy label and any stickers that may be attached to the prescription bottle or box. The label and stickers may have information on how to take the drug and possible side effects.
Prescription drug information on side effects is available on FDA’s Drugs@FDA database and FDA’s FDALabel database.

Source: U.S. Food and Drug Administration (FDA).-

Tylenol PM side effects
Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

In rare cases, acetaminophen may cause a severe skin reaction that can be fatal. This could occur even if you have taken acetaminophen in the past and had no reaction. Stop taking this medicine and call your doctor right away if you have skin redness or a rash that spreads and causes blistering and peeling. If you have this type of reaction, you should never again take any medicine that contains acetaminophen.

The medicine may cause serious side effects. Stop using the medicine and call your doctor at once if you have:

severe drowsiness;

painful or difficult urination; or

liver problems--loss of appetite, stomach pain (upper right side), tiredness, itching, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes).

Common side effects of Tylenol PM may include:

drowsiness;

constipation;

decreased urination;

dry eyes, blurred vision; or

dry mouth, nose, or throat.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Source and more info: https://www.drugs.com/mtm/tylenol-pm.html

Regards, masso