Why is this medication prescribed?

Altaryl, which is the generic form of diphenhydramine, is primarily prescribed for its antihistamine properties. It is used to relieve symptoms of allergies such as hay fever, allergic rhinitis, and allergic conjunctivitis. It works by blocking the action of histamine, a substance in the body that causes allergic symptoms like itching, sneezing, runny nose, and watery eyes.

How should this medicine be used?

Altaryl, the generic form of diphenhydramine, is typically used for its antihistamine properties to relieve symptoms associated with allergies. Here are the general guidelines for its use:

• Dosage: The dosage of Altaryl can vary based on age, medical condition, and response to treatment. Always follow your doctor’s instructions or the directions on the medication label.
• Forms: Altaryl is available in various forms including tablets, capsules, and liquid. Choose the form that is prescribed to you or that suits your needs best.
• Administration:
  • Oral Tablets/Capsules: Swallow the tablet or capsule whole with a full glass of water. Do not crush or chew extended-release tablets unless directed by your doctor.
  • Liquid: Shake the bottle well before each dose. Use a measuring device or spoon to ensure you get the correct dose. Household spoons may not measure the exact amount.
• Timing: Altaryl is usually taken every 4 to 6 hours as needed for symptom relief. It can be taken with or without food.
• Special Considerations: If you are using Altaryl to help with sleep (as a sleep aid), take it approximately 30 minutes before bedtime. If you are using Altaryl to prevent motion sickness, take it at least 30 minutes before traveling or participating in activities that may induce motion sickness.
• Duration: Follow the prescribed duration of treatment as advised by your doctor. Do not exceed the recommended dosage or use it for longer than directed unless instructed by your doctor.
• Side Effects: Common side effects of Altaryl may include drowsiness, dizziness, constipation, blurred vision, or dry mouth/nose/throat. If these side effects persist or worsen, contact your doctor.
• Overdose: Seek immediate medical attention if you suspect an overdose of Altaryl. Symptoms may include extreme drowsiness, confusion, hallucinations, seizures, or breathing difficulties.

Always adhere to your doctor’s instructions and read the medication guide provided with Altaryl (Generic Diphenhydramine) for comprehensive information regarding its use, precautions, and potential side effects.

Other uses for this medicine

• Insomnia: Due to its sedating effects, Altaryl is sometimes used as a sleep aid to help individuals with insomnia fall asleep.
• Cough and Cold: Altaryl may be included in some cough and cold preparations to help relieve symptoms such as coughing and runny nose.
• Parkinson’s Disease: It can sometimes be used to manage symptoms of Parkinson’s disease, particularly for its anticholinergic effects which can help reduce tremors and muscle stiffness.

What special precautions should I follow?

Special Precautions for Altaryl (Generic Diphenhydramine):

• Drowsiness and Impairment: Altaryl can cause significant drowsiness and impair your ability to perform tasks requiring mental alertness, such as driving or operating machinery. Avoid these activities until you know how this medication affects you.
• Alcohol and Other Sedatives: Avoid consuming alcohol or taking other medications that cause drowsiness while using Altaryl, as it can intensify these effects.
• Medical Conditions: Inform your doctor if you have any medical conditions, especially:
  • Respiratory Issues: Such as asthma or chronic obstructive pulmonary disease (COPD), as Altaryl can worsen breathing problems.
  • Glaucoma: Altaryl can increase eye pressure, worsening symptoms of glaucoma.
  • Enlarged Prostate: Altaryl can worsen symptoms of benign prostatic hyperplasia (BPH).
  • High Blood Pressure: Monitor blood pressure closely while taking Altaryl, as it can increase blood pressure in some individuals.
• Pregnancy and Breastfeeding: Consult with your doctor before using Altaryl if you are pregnant, planning to become pregnant, or breastfeeding. It is generally recommended to avoid using diphenhydramine during pregnancy unless directed by a healthcare provider.
• Children and Elderly: Use caution when giving Altaryl to children or elderly individuals, as they may be more sensitive to its effects, especially drowsiness and confusion.
• Allergic Reactions: If you experience any signs of an allergic reaction (e.g., rash, itching, swelling), seek immediate medical attention.
• Overdose: Accidental overdose of Altaryl can be serious. Seek emergency medical attention if you suspect an overdose, which may manifest as extreme drowsiness, confusion, hallucinations, seizures, or difficulty breathing.

Always follow your doctor’s instructions and read the medication guide provided with Altaryl (Generic Diphenhydramine) for specific information regarding its use, precautions, and potential interactions with other medications.

What special dietary instructions should I follow?

There are generally no specific dietary instructions for Altaryl. However, it is advisable to take Altaryl with a full glass of water to help with swallowing tablets or capsules. If you have any dietary concerns or restrictions, discuss them with your doctor or pharmacist.

What should I do if I forget a dose?

If you forget to take a dose of Altaryl, take it as soon as you remember. However, if it is almost time for your next scheduled dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one.

What side effects can this medication cause?

Altaryl (Generic Diphenhydramine) can cause various side effects, ranging from mild to potentially serious. It’s important to be aware of these side effects and to seek medical advice if they occur, particularly if they are severe or persistent. Here are some common side effects associated with Altaryl:

• Drowsiness: This is one of the most common side effects of Altaryl. It can impair your ability to concentrate and perform tasks that require alertness, such as driving or operating machinery.
• Dizziness: Feeling dizzy or lightheaded can occur, especially when standing up quickly from a sitting or lying position.
• Dry Mouth, Nose, or Throat: Altaryl can cause dryness in the mouth, nose, or throat, leading to discomfort or irritation.
• Blurred Vision: Vision may become temporarily blurred while taking Altaryl.
• Constipation: Some individuals may experience constipation as a side effect.
• Urinary Retention: Difficulty or inability to urinate may occur, particularly in men with prostate enlargement.
• Upset Stomach: Nausea or mild stomach upset can sometimes happen.
• Confusion or Delirium: Particularly in elderly individuals, Altaryl can cause confusion, agitation, or delirium.
• Increased Heart Rate: Some people may experience a faster heart rate (tachycardia) as a side effect.
• Allergic Reactions: Although rare, allergic reactions such as rash, itching, swelling of the face/tongue/throat, severe dizziness, or trouble breathing may occur. Seek immediate medical attention if you experience any signs of an allergic reaction.
• Other Side Effects: Less common side effects can include tremors, nervousness, ringing in the ears (tinnitus), and difficulty sleeping (insomnia).

Serious Side Effects: In some cases, Altaryl can lead to serious side effects that require immediate medical attention. These include:

• Severe Dizziness or Fainting: Especially when standing up quickly.
• Trouble Breathing: This can be a sign of a serious allergic reaction.
• Severe Confusion or Hallucinations: Particularly in older adults.
• Seizures: Although rare, seizures have been reported with diphenhydramine use.
• Irregular Heartbeat or Chest Pain: Seek medical help immediately if you experience these symptoms.

If you experience any side effects while taking Altaryl, it’s essential to discuss them with your healthcare provider. They can help determine whether the medication is appropriate for you or if adjustments need to be made to your treatment plan.

What should I know about storage and disposal of this medication?

Storage of Altaryl:

• Storage Conditions: Store Altaryl at room temperature away from light and moisture. Avoid storing it in the bathroom.
• Specific Instructions: Follow any specific storage instructions provided on the medication label or by your pharmacist.
• Keep Out of Reach of Children: Store Altaryl in a secure place out of reach of children and pets to prevent accidental ingestion.

Disposal of Altaryl:

• Unused or Expired Medication: Dispose of any unused or expired Altaryl properly according to local guidelines and regulations.
• Do Not Flush: Do not flush medications down the toilet unless instructed to do so. Proper disposal helps prevent harm to pets, children, and the environment.
• Medication Take-Back Programs: Check if there are any medication take-back programs in your community where you can safely dispose of unused medications.

In case of emergency/overdose

• Symptoms of Overdose: Symptoms of Altaryl overdose may include extreme drowsiness, confusion, hallucinations, seizures, difficulty breathing, and loss of consciousness.
• Seek Immediate Medical Attention: If you suspect an overdose or someone has accidentally ingested Altaryl, call emergency services (911) or your local poison control center immediately. Provide them with as much information as possible, including the amount ingested and the person’s age and weight.
• Do Not Delay: Overdose of Altaryl can be life-threatening, so prompt medical attention is crucial.

What other information should I know?

• Allergies: Inform your healthcare provider of any allergies you have, especially to diphenhydramine or other antihistamines.
• Medical History: Share your complete medical history with your doctor, especially if you have breathing problems (e.g., asthma), glaucoma, high blood pressure, prostate problems, or liver disease.
• Driving and Operating Machinery: Altaryl can cause drowsiness and impair your ability to perform tasks requiring mental alertness. Avoid driving or operating machinery until you know how Altaryl affects you.
• Alcohol and Sedatives: Avoid consuming alcohol or taking other medications that cause drowsiness while using Altaryl, as it can intensify these effects.
• Pregnancy and Breastfeeding: Consult with your doctor before using Altaryl if you are pregnant, planning to become pregnant, or breastfeeding.
• Interactions: Altaryl may interact with other medications. Inform your doctor or pharmacist about all medications you are currently taking, including prescription drugs, over-the-counter medications, vitamins, and herbal supplements.
• Side Effects: Be aware of potential side effects of Altaryl and contact your doctor if they become bothersome or severe.

By following these guidelines, you can ensure the safe and effective use of Altaryl. Always consult your healthcare provider or pharmacist if you have any questions or concerns about its use or storage.