{"id":630322,"date":"2024-11-14T09:30:46","date_gmt":"2024-11-14T14:30:46","guid":{"rendered":"https:\/\/www.singlecare.com\/blog\/?p=630322"},"modified":"2025-04-29T13:31:24","modified_gmt":"2025-04-29T17:31:24","slug":"can-i-take-levothyroxine-at-night","status":"publish","type":"post","link":"https:\/\/www.singlecare.com\/blog\/can-i-take-levothyroxine-at-night\/","title":{"rendered":"Can I take levothyroxine at night?"},"content":{"rendered":"

Levothyroxine<\/span><\/a> sodium (brand name Synthroid) is a thyroid medication commonly prescribed for the treatment of <\/span>hypothyroidism<\/span><\/a>. This condition occurs when your thyroid gland doesn\u2019t produce enough thyroxine (a thyroid hormone). It helps bring <\/span>thyroid-stimulating hormone (TSH) levels<\/span><\/a> back to the normal range, with the goal of restoring normal thyroid hormone levels throughout the body. This helps to regulate your energy, metabolism, and overall health. Generally, people take levothyroxine in the morning on an empty stomach, but could taking it before bed offer similar, or even better, results?<\/span><\/p>\n

You can take levothyroxine at night\u2014but <\/span>it\u2019s not the right choice for everyone<\/span><\/a>. Keep reading to learn the pros and cons of morning levothyroxine intake versus evening doses and how <\/span>taking levothyroxine<\/span><\/a> at night can impact the absorption of the medication and your quality of life.<\/span><\/p>\n

Can I take levothyroxine at night?<\/span><\/h2>\n

The short answer is yes, you can take <\/span>levothyroxine<\/span><\/a> at night. It won\u2019t change the medication’s efficacy\u2014as long as you take it consistently and on an empty stomach. A recent <\/span>randomized crossover trial<\/span><\/a> found no significant difference in TSH levels or thyroid hormone levels when levothyroxine is administered at bedtime versus in the morning.<\/span><\/p>\n

Some people with variable schedules find it easier to remember to take levothyroxine before bed. Just remember to wait at least <\/span>three to four hours after your last meal<\/span><\/a>.<\/span><\/p>\n

What happens when you take levothyroxine at night?<\/span><\/h2>\n

Insomnia, or trouble falling or staying asleep, is a potential <\/span>side effect of levothyroxine<\/span><\/a>. Hence, taking a dose at bedtime could make sleeping difficulties worse.<\/span><\/p>\n

Other side effects of levothyroxine may negatively affect sleep, such as headache, shortness of breath, nervousness, irritability, and tremors\u2014particularly if your dose is higher than needed to manage your condition.<\/span><\/p>\n

Yet, for people who don\u2019t experience side effects, taking a nighttime dosage may help <\/span>avoid a food or drug interaction<\/span><\/a>.<\/span><\/p>\n

How to switch from morning to nighttime doses<\/span><\/h2>\n

Switching from morning to nighttime doses of levothyroxine requires careful coordination with your healthcare provider and pharmacist because this medication has several potential food and drug interactions. \u201cPatients should consider their daily routine, how consistent they are with timing, and any potential interactions with food or medications,\u201d explains <\/span>Kimberly Langdon<\/span><\/a>, MD, a healthcare provider in Ohio. By following these steps, it\u2019s possible to transition from morning doses to taking levothyroxine at night:<\/span><\/p>\n

1. Consult with your healthcare provider<\/span><\/h3>\n

Before making any changes, consult with your thyroid treatment team to ensure that switching to nighttime administration won\u2019t disrupt your thyroid function. Your healthcare provider will likely schedule blood tests to monitor how well your body adjusts, particularly your serum TSH levels. Any irregularities in your thyrotropin or thyroxine levels might indicate the need for an adjusted dose.<\/span><\/p>\n

2. Take on an empty stomach<\/span><\/h3>\n

Taking levothyroxine on an empty stomach is critical to ensuring your body absorbs the medication properly, whether you choose morning or bedtime administration.<\/span><\/p>\n

Food interactions<\/span><\/h4>\n

Food can significantly reduce the drug’s intestinal absorption, leading to fluctuating thyroid hormone levels and potential side effects, such as fluctuations in weight, restlessness, or changes in blood pressure.<\/span><\/p>\n

It\u2019s crucial to take your dose of levothyroxine when its intestinal absorption won\u2019t be impaired by digestion, says <\/span>Ani Shenian, Pharm.D.<\/span><\/a>, a clinical pharmacist in Los Angeles. According to Dr. Shenian, that means avoiding the following foods that make levothyroxine less effective within three to four hours of your dose, including:<\/span><\/p>\n