This section provides information on the proper use of a number of products that contain pyrithione.  It may not be specific to 2 in 1 Dandruff. Please read with care.
For best results, use this medicine at least 2 times a week or as directed by your doctor.
To use:
Before applying this shampoo, wet the hair and scalp with lukewarm water.
Apply enough shampoo to the scalp to work up a lather and rub in well, then rinse.
Apply the shampoo again and rinse thoroughly.
Keep this medicine away from the eyes. If you should accidentally get some in your eyes, flush them thoroughly with water.
Dosing
The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
For bar dosage form:
For dandruff and seborrheic dermatitis:
Adults and children—Apply to the affected skin of body, face, or scalp once a day at least two times a week. Lather, massage into affected area, rinse, and repeat.
For cream dosage forms:
For dandruff or seborrheic dermatitis:
Adults and children—Apply one to three times a day to affected skin on the body, face, or scalp or as directed by the doctor.
For Brylcreem Antidandruff—Adults: Apply to scalp once a day after shampooing and toweling hair dry. Massage into scalp for one minute.
Children—Use and dose must be determined by the doctor.
For lotion dosage form:
For dandruff and seborrheic dermatitis:
For DermaZinc Scalp: Adults—Apply to scalp one to three times a day or as directed by the doctor.
For DermaZinc Spray: Adults—Apply one spray to affected skin of body, face, or scalp one to three times a day or as directed by the doctor. Medicine should cover a three-inch-square area. Treatment should continue for one week after symptoms lessen.
For DermaZinc Baby: Children—Apply to affected skin of face, body, or scalp one to four times a day or as directed by the doctor.
For lotion shampoo dosage forms:
For dandruff and seborrheic dermatitis:
Adults and children up to 2 years of age—Use once a day as a shampoo on the scalp at least two times a week; however, may be used every day. Apply to wet hair and leave on the scalp for several minutes or massage into scalp vigorously before rinsing.
Children up to 2 years of age—Use and dose must be determined by the doctor.
Missed dose
If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Storage
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
 Detailed Pyrithione zinc topical dosage information
