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Frenin Injection 1 ml belongs to a class of medications called anti-hypotensives used to treat hypotension (low blood pressure) caused by spinal anaesthesia, circulatory failure or certain other medicines. Also, it is used to treat low blood pressure during surgery or after an injury. Hypotension is a condition in which the blood flows through the blood vessels at lower than normal pressures. Low blood pressure symptoms include tiredness, dizziness, light-headedness, loss of consciousness, nausea, depression, blurry vision, or clammy (wet or sweaty) skin.
Frenin Injection 1 ml contains Phenylephrine that works by constricting and narrowing blood vessels by acting on alpha receptors. Thus, it increases blood pressure and decreases heart rate.
Frenin Injection 1 ml will be administered by a healthcare professional; do not self-administer. In some cases, you may experience headache, vomiting, sweating, nervousness, tremor, shortness of breath, difficulty in passing urine or irregular heartbeat. Most of these side effects of Frenin Injection 1 ml do not require medical attention and gradually resolve over time. However, if the side effects persist, please consult your doctor.
If you are allergic to Phenylephrine or any other medicines, please tell your doctor. If you are pregnant or breastfeeding, please inform your doctor before receiving Frenin Injection 1 ml. Discuss with your doctor if you want to drive or operate machinery after receiving Frenin Injection 1 ml. Caution is advised when drinking alcohol while you are receiving Frenin Injection 1 ml.
Frenin Injection 1 ml is used in the treatment of Hypotension (low blood pressure). The detailed use of Frenin Injection 1 ml is as follows:
Frenin Injection 1 ml contains Phenylephrine, an anti-hypotensive agent used to treat low blood pressure caused by spinal anaesthesia, circulatory failure or certain other medicines. Also, it is used to treat low blood pressure during surgery or after an injury. It works by constricting and narrowing blood vessels by acting on alpha receptors. Thus, it increases blood pressure and decreases heart rate.
Caution
You are advised to be careful when drinking alcohol while you are receiving Frenin Injection 1 ml. However, if you have any concerns regarding this, please discuss them with your doctor.
Consult your doctor
Limited data is available on the effect of Frenin Injection 1 ml in pregnancy. Hence, if you are pregnant or planning for pregnancy, inform your doctor before receiving Frenin Injection 1 ml.
Consult your doctor
Limited data is available on the effect of Frenin Injection 1 ml on breastfeeding. Hence, if you are a nursing mother, inform your doctor before receiving Frenin Injection 1 ml.
Consult your doctor
Discuss with your doctor if you want to drive or operate machinery after receiving Frenin Injection 1 ml.
Consult your doctor
If you have a pre-existing history of liver disease, inform your doctor before receiving Frenin Injection 1 ml. Your doctor may adjust the dose of this medicine or prescribe a suitable alternative based on your condition.
Consult your doctor
If you have a pre-existing or a history of kidney diseases, inform your doctor before receiving Frenin Injection 1 ml. Your doctor may adjust the dose of this medicine or prescribe a suitable alternative based on your condition.
Consult your doctor
If you have any concerns regarding the use of Frenin Injection 1 ml in children, please consult your doctor.
Caution
Let your doctor know if you have any history of heart diseases. Your doctor will weigh the benefits and potential risks before prescribing Frenin Injection 1 ml.
Caution
Frenin Injection 1 ml should be used with caution in elderly patients. Please consult your doctor before use.

Have a query?
Please tell your doctor if you are allergic to Phenylephrine or other medicines. If you are pregnant or breastfeeding, please inform your doctor before receiving Frenin Injection 1 ml. Discuss with your doctor if you want to drive or operate machinery after receiving Frenin Injection 1 ml. Caution is advised when drinking alcohol while you are receiving Frenin Injection 1 ml. Frenin Injection 1 ml should not be given to you if you are taking or have taken monoamine oxidase (MAO) inhibitor medicines (used for depression) in the past 14 days.
Drug-Drug Interactions: Frenin Injection 1 ml may interact with antidepressants (imipramine, linezolid, phenelzine, iproniazide, nialamide). If you are taking medicines used to stimulate labour (oxytocin), medicine that restricts blood vessels (metaraminol), general anaesthetics, medicines used to treat high blood pressure (guanethidine), medicines used to treat heart problems (quinidine, cardiac glycosides), drugs used to treat attention-deficit hyperactivity disorder (atomoxetine), antimuscarinics (atropine), antimanic agent (lithium) or antiparkinson agents (lisuride, pergolide, bromocriptine), inform your doctor before receiving Frenin Injection 1 ml.
Drug-Food Interactions: No interactions found.
Drug-Disease Interactions: If you have hyperthyroidism (overactive thyroid gland), high blood pressure, prostatic enlargement, diabetes mellitus, diabetic autonomic neuropathy, arrhythmia (irregular heartbeat), angina pectoris (chest pain), ischaemic heart disease, occlusive vascular disease or aneurysms (abnormal bulge in the wall of blood vessels) or have a history of acute narrow-angle glaucoma, inform your doctor before receiving Frenin Injection 1 ml.
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RXUnited Biotech Pvt Ltd
₹314
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RXNeon Laboratories Ltd
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Frenin Injection 1 ml is used to treat Hypotension (low blood pressure).
Frenin Injection 1 ml contains Phenylephrine that works by constricting and narrowing blood vessels by acting on alpha receptors. Thus, it increases blood pressure and decreases heart rate.
Phenylephrine in Frenin Injection 1 ml may worsen heart failure due to constriction of blood vessels. Therefore, inform your doctor if you have heart failure or any other heart problem before receiving Frenin Injection 1 ml.
Frenin Injection 1 ml may cause a headache as a temporary side effect. However, if the condition persists or worsens, please inform your doctor.
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