Cyproheptadine

Perennial Allergic Rhinitis, Blepharospasm ... show more

DRUG STATUS

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Approvals

US(FDA), UK(BNF)

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Essential Medicine

NO

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Teratogenicity

N/A

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Pharmaceutical Class

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Drug Ingredient

Cyproheptadine

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Summary

  • Cyproheptadine is used to treat allergy symptoms like itching, runny nose, and hives. It's also used for appetite loss and to prevent migraines. It can also be used in the treatment of chronic urticaria (long-term hives) and serotonin syndrome, a rare condition caused by high serotonin levels.

  • Cyproheptadine works by blocking the action of histamine, a substance in the body that causes allergic reactions. It also acts as a serotonin antagonist, helping to balance serotonin levels. This helps relieve allergy symptoms, increase appetite, and prevent migraines.

  • The usual adult dosage of Cyproheptadine is 4 mg taken 2 to 3 times a day, with a maximum daily dose of 12 mg. It's usually taken orally, with or without food. To minimize side effects, it's best to start with a lower dose and gradually increase it.

  • Common side effects of Cyproheptadine include drowsiness, dry mouth, dizziness, and constipation. More severe side effects can include blurred vision, confusion, urinary retention, and rapid heart rate. In rare cases, it may cause serious reactions like serotonin syndrome or an allergic reaction.

  • Cyproheptadine should be avoided by those with glaucoma, urinary retention, or severe liver disease. It should not be used with MAOIs. Pregnant or breastfeeding women should consult a doctor first. The medication can cause drowsiness, so caution is needed during activities requiring alertness.

Indications and Purpose

What is Cyproheptadine used for?

  1. Allergic reactions (e.g., hay fever, hives)
  2. Appetite loss (often used in weight gain treatment)
  3. Migraine prevention
  4. Serotonin syndrome (a rare condition caused by high serotonin levels)
  5. Chronic urticaria (hives)

How does Cyproheptadine work?

Cyproheptadine works by blocking the action of histamine, a substance in the body that causes allergic reactions like itching, swelling, and runny nose. It also acts as a serotonin antagonist, which helps in reducing symptoms related to serotonin imbalances, such as those seen in migraine headaches or serotonin syndrome. This combination of actions helps relieve allergic symptoms, increase appetite, and prevent migraines.

Is Cyproheptadine effective?

Evidence shows that cyproheptadine is effective in treating allergies, appetite loss, and migraines. Studies have demonstrated its ability to reduce symptoms like itching, runny nose, and hives in allergic conditions. It has also been shown to increase appetite in underweight individuals. In migraine prevention, cyproheptadine has been found to reduce the frequency and severity of attacks. Clinical trials and patient reports support its safety and efficacy when used as prescribed.

How does one know if Cyproheptadine is working?

The benefit of cyproheptadine is evaluated through clinical assessments and patient feedback. Doctors monitor symptom improvement, such as reduced allergy symptoms, increased appetite, or fewer migraine attacks. Additionally, the effectiveness can be assessed through periodic check-ups, where a doctor evaluates weight gain or the frequency of allergic reactions and headaches. Patient-reported outcomes also help gauge its effectiveness in daily life.

Directions for Use

How do I take Cyproheptadine?

Cyproheptadine can be taken with or without food. It’s important to follow the prescribed dosage and take it consistently at the same times each day. There are no specific food restrictions while taking this medicine. However, alcohol should be avoided as it can increase drowsiness. Always consult a healthcare provider for personalized guidance.

For how long do I take Cyproheptadine?

The duration of use for cyproheptadine depends on the condition being treated and individual patient needs. Typically: Allergic Conditions (e.g., rhinitis, urticaria): Cyproheptadine may be used short-term during allergy flare-ups or as needed to manage symptoms. Appetite Stimulation: It is often prescribed for a limited period, such as a few weeks to months, to address issues like poor appetite or weight loss.  Chronic Conditions (e.g., cold urticaria): Longer-term use may be required, but this should be under regular medical supervision to reassess efficacy and side effects. Cyproheptadine is not typically intended for indefinite or long-term use unless explicitly recommended by a healthcare provider.

How long does it take for Cyproheptadine to start working?

Cyproheptadine usually starts working within 1 to 2 hours after taking it. Its effects, such as relief from allergy symptoms or appetite increase, may become noticeable during this time. However, the full effects can take a few days to become fully apparent, depending on the individual and the condition being treated.

How should I store Cyproheptadine?

Cyproheptadine should be stored at room temperature, away from moisture, heat, and direct sunlight. Keep it in a tightly closed container and out of reach of children. Do not store it in the bathroom or in places with high humidity. Always follow the specific storage instructions provided on the medication label.

Warnings and Precautions

Who should avoid taking Cyproheptadine?

Cyproheptadine should be avoided by those with glaucoma, urinary retention, or severe liver disease. It shouldn't be used with MAOIs. Pregnant or breastfeeding women should consult a doctor first. The medication can cause drowsiness, so caution is needed during activities requiring alertness. Always follow medical advice.

Can I take Cyproheptadine with other prescription drugs?

Cyproheptadine can interact with MAOIs, antidepressants (SSRIs, SNRIs), sedatives, alcohol, and anticholinergic drugs, increasing the risk of serious side effects like serotonin syndrome, drowsiness, or dry mouth. Always inform your doctor about other medications you're taking.

Can I take Cyproheptadine with vitamins or supplements?

Cyproheptadine may interact with certain vitamins or supplements, particularly those that affect serotonin levels. Taking it with supplements like St. John's Wort or 5-HTP can increase the risk of serotonin syndrome. Additionally, high doses of vitamin C might reduce its effectiveness. Always consult a doctor before combining cyproheptadine with any supplements to avoid potential interactions.

Can Cyproheptadine be taken safely while pregnant?

Cyproheptadine is classified as a Category C medication for pregnancy, meaning that its safety during pregnancy has not been fully established. Animal studies have shown potential risks, but there are no well-controlled studies in pregnant women. It should only be used if the benefits outweigh the risks, and it's best to consult a doctor before using it during pregnancy.

Can Cyproheptadine be taken safely while breastfeeding?

Cyproheptadine is excreted in breast milk, and its safety during breastfeeding has not been fully established. While it is generally not recommended for breastfeeding mothers due to potential sedative effects on the infant, it may be used if the benefits outweigh the risks. It's important to consult a doctor before using cyproheptadine while breastfeeding.

Is Cyproheptadine safe for the elderly?

For seniors, start with a low dose of antihistamines. This is because their bodies may not break down the medicine as well, and they may have other health problems or be taking other medicines. Antihistamines can make you feel dizzy or sleepy, so seniors should be careful when doing activities that require alertness. Studies haven't shown any major differences in how antihistamines work in seniors compared to younger people, but more research is needed.