The pupil is the black area in the center of the iris, the colored part of the eye. The iris controls the size of the pupil in response to light outside the eye so that the proper amount of light is let into the eye. Light passes through the pupil to the back of the eye, where an image is formed of what the eye is...

Few things are more important to your health and survival during a long emergency than having water that is safe to drink. Knowing how to purify water can help you if your regular water supply becomes contaminated or if you are in a place where clean water is not available. Even if you have stored clean water to use in...

Pursed-lip breathing helps you breathe more air out so that your next breath can be deeper. Breathe in through your nose and out through your mouth while almost closing your lips. Breathe in for about 2 seconds, and breathe out for 4 to 6 seconds. Breathing while bending forward can help you breathe more easily while...

Source: Public Health Image Library (PHIL). Richard F. Darsie Jr., PhD. Available online: http://phil.cdc.gov The puss caterpillar, or woolly slug, is the most poisonous caterpillar in the United States. Its poison is hidden in hollow spines among its hairs. This hairy caterpillar is found in the southern states...

Botanical names: Pygeum africanum How It Works Chemical analysis and pharmacological studies indicate the lipophilic extract of pygeum bark has three categories of active constituents: 1) Phytosterols, including beta-sitosterol, have anti-inflammatory effects by interfering with the formation of hormone-like substances...

Pyloric stenosis is a condition in which a baby's pylorus (the muscle between the stomach and the first part of the small intestine) gradually swells and thickens, which interferes with food entering the intestine. This causes the baby to vomit most or all of their feedings. Vomiting caused by pyloric stenosis usually...

Provides a summary of interactions with vitamins, herbs, and food

Chew the pill and swallow. This medicine may be taken with or without food. May be taken with milk or fruit juice. Store at room temperature away from heat, light, and moisture. Do not keep in the bathroom. Family members and anyone who has been in close contact should be checked to see if they also need to be treated...

This medicine may be taken with or without food. Swallow with a full glass (8 oz) of water unless your doctor gives you different instructions. May be taken with milk or fruit juice. Store at room temperature away from heat, light, and moisture. Do not keep in the bathroom. Family members and anyone who has been in...

Provides a summary of interactions with vitamins, herbs, and food

Pyridostigmine affects chemicals in the body that are involved in the communication between nerve impulses and muscle movement. Pyridostigmine is used to treat the symptoms of myasthenia gravis. It is also used in military personnel who have been exposed to nerve gas. Pyridostigmine may also be used for purposes not...

Drink the medicine. Measure the dose of liquid medicine carefully. Use the measuring device that comes with the medicine. If you do not have one, please ask your pharmacist for help. This medicine may be taken with or without food. This medicine will work best if you take it at about the same time every day. Store at...

Pyridoxine is vitamin B6. Vitamins occur naturally in foods such as meat, poultry, nuts, whole grains, bananas, and avocados. Vitamin B6 is important for many processes in the body. Pyridoxine is used to treat or prevent vitamin B6 deficiency. It is also used to treat a certain type of anemia (lack of red blood cells)...

This medicine will work best if you take it at about the same time every day. Store at room temperature away from heat, light, and moisture. Do not keep in the bathroom. Do not store above 77 degrees F (25 degrees C). If you forget to take a dose on time, take it as soon as you remember. If it is almost time for the...